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2-Methylacrylonitrile [Stabilized]: A Closer Look at Its Past, Present, and Future in Modern Industry

Understanding Where 2-Methylacrylonitrile Came From

Looking back over the history of specialized nitriles, chemists spent decades piecing together pathways for producing building blocks like 2-Methylacrylonitrile. The 1950s and 60s brought significant progress in organic synthesis, with laboratories from Europe to the US in a race to create new intermediates for plastics, resins, and coatings. Although methacrylonitrile’s closest cousin, acrylonitrile, made headlines in large polymer production, the added methyl group in 2-Methylacrylonitrile changed its trajectory. Its origins tell a story shaped by the expansion of petrochemical processes, a time when the tiniest alteration in an organic scaffold promised new kinds of materials and unique properties for advanced manufacturing. Chemists started with the desire for versatility in acrylics, searching for ways to tweak not just reactiveness but also physical durability and chemical resistance. In the early days, the stabilization of volatile nitriles like this one stood out as a tough challenge and forced researchers to rethink how bottles moved from synthesis benches into shipping containers.

Product Overview: Bringing Structure to the Table

2-Methylacrylonitrile sits in the camp of unsaturated nitriles, notable for its double bond paired directly next to a cyano group and a methyl tail. This small shift compared to acrylonitrile changes how it behaves in labs and on factory floors. People who work with it notice the clear colorless liquid with a pungent odor—characteristics that signal its reactive spirit. The stabilization step, usually through a touch of phenolic inhibitor or another radical suppressant, plays a major role in stopping dangerous runaway polymerization. Unlike broad monomer feedstocks, this compound targets niche applications, where the structure nudges chain reactions or brings out specific tuning in polymer features. Its reactivity doesn’t mean uncontrolled chaos, but rather an invitation to carefully set up conditions for innovation—if the operator gives it respect and attention. In industries that tinker with adhesives, specialized plastics, or treatment resins, this molecule isn’t just another bottle on the shelf; it’s a tool with a unique personality.

Physical and Chemical Properties: Not Just a Number Set

People sometimes glance at datasheets and move on, but 2-Methylacrylonitrile’s boiling point, flash point, and density hint at much deeper stories. The relatively low boiling temperature tells you right away evaporation and workplace containment make for serious operational rules. The sharp cyano odor isn’t just a nuisance—breathing even small amounts can leave you feeling unwell; greater exposures cause much graver symptoms. The double bond next to the nitrile group makes it an eager participant in addition and polymerization reactions, enabling both functionalization and backbone modifications. One can shed light on processing by considering its kinetic details and solubility in common industrial solvents, such as acetone or dichloromethane. This liquid won’t often appear in consumer goods, but those working in process development or chemical engineering see first-hand the need for advanced ventilation, spill preparedness, and continuous monitoring.

Technical Labeling and Operational Realities

In the realm of chemical storage, 2-Methylacrylonitrile’s hazards drive labeling rules well over and above what most people expect for standard industrial chemicals. Its stabilization isn’t just a checkbox—it marks a critical intervention that vendors perform before shipping out every drum or flask. Labels warn about flammability, toxicity by inhalation or skin absorption, and the risks that rise during handling or transfer. In workplaces, I’ve learned that staff training, familiarity with safety data, and accessible spill kits aren’t matters of convenience—they’re the bedrock for safe operations. The strict separation from incompatible agents like strong acids, alkalis, and oxidizing agents is not just a paperwork exercise. Laboratories and plants enforce real physical separation to prevent disaster. The technical paperwork often sounds daunting, but anyone watching quick-reacting nitriles under the wrong conditions appreciates the gravity of every hazard symbol stamped onto a container.

Preparation: Old Routes Meet Modern Demands

For most newcomers to reactive intermediates, the synthesis of 2-Methylacrylonitrile starts with an understanding of dehydration and substitution reactions. Classic preparation typically pivots around the dehydration of corresponding amides or condensation of methyl-containing aldehydes and hydrocyanic acid. These methods require sharp temperature controls and strict exclusion of contaminants. Industrial-scale production leans on continuous flow setups, where reactors limit operator exposure and improve yield control. The chemical route matters not just for cost, but also for purity and safe handling. Many small errors in feedstock or timing result in explosive side reactions, polymeric byproducts, or trace contaminants that haunt downstream users. Modern improvements trickle down from research labs looking for greener, less hazardous reagents, but the scale-up to larger volumes still calls for seasoned process know-how—something no textbook or automated system substitutes for.

Chemical Reactions and Pathways for Modification

2-Methylacrylonitrile holds a reactive double bond alongside the potent cyano group, letting it join many addition and copolymerization reactions. In controlled setups, chemists use it to tweak properties of synthetic resins or acrylic copolymers. It can serve as a precursor for further functionalization, with the nitrile group offering a handle for reduction, hydrolysis, or cyclization to reach a range of amines, acids, or nitrogen-containing ring compounds. I’ve seen polymer scientists add this monomer in small batches, tuning elasticity or adhesion properties in specialty polymers designed for coatings or adhesives. Its reactivity also prompts ongoing exploration of catalysts—palladium or nickel complexes, for example—that can direct transformations into unique, application-driven products. The presence of the methyl side group shifts the polymer backbone’s rigidity and mechanical profile, opening up choices for formulators searching for that one-in-a-hundred combination where performance really matters.

Names by Which You Might Meet This Chemical

2-Methylacrylonitrile pops up in papers and catalogs under several names. Sometimes chemists call it methacrylonitrile, or simply isobutenenitrile. The chemical structure, with its branching methyl group, sets it apart from simpler acrylonitrile, though confusion sometimes creeps in among newcomers skimming chemical indexes. For regulatory filings and purchasing, using the CAS registry number avoids mistakes. Within the industry, employees working on batch production or safety planning learn to check cross-references and synonyms to keep inventories clear and prevent accidental substitutions that could introduce safety risks or ruin a production run.

Workplace Safety: Lessons from Hard Realities

People often treat chemical safety as an academic requirement rather than a living practice, but working with 2-Methylacrylonitrile flips that mindset fast. Even slight leaks or spills mean a room filling with noxious, hazardous fumes, and direct contact risks chemical burns or systemic poisoning. Most organizations that handle this chemical enforce full personal protective gear—chemical-resistant gloves, goggles, face shields, and fit-tested respirators. Continuous ventilation, scrubbers, and tight process control are not bonuses—they’re vital. Staff train on emergency shutdowns and proper disposal routines, and regulatory compliance checks extend down to the smallest storage can. The stabilized form takes the edge off violent polymerization, but complacency turns any batch into a serious hazard. I’ve watched experienced teams treat every step, from vial to bulk transfer, with a blend of caution and routine calm that only comes from deep understanding of the risks and consequences.

Where Does 2-Methylacrylonitrile End Up?

In manufacturing, 2-Methylacrylonitrile fills a need few other chemical intermediates can address. Its niche applications include specialty copolymers, high-performance coatings, and modified adhesives where the fine-tuning of stickiness, flexibility, or durability offers competitive edges. Research teams push boundaries, searching for uses in advanced materials, like membranes or impact modifiers for plastics. Its structure enables further transformations, allowing for tailored surface or bulk properties in custom-built materials that show up in aerospace, medical device prototypes, or electronics. Usage volumes stay much lower than commodity monomers, but the technical innovations it supports ripple outward into products people rely on every day—from pressure-sensitive tapes to optical fibers and emerging battery technologies. Even upstream, industries that value control over every molecular feature appreciate the options this intermediate provides.

What Drives Research and Development Forward

Curiosity, commercial opportunity, and safety imperatives combine to propel ongoing research on 2-Methylacrylonitrile. Universities and corporate labs chase improved catalysis, aiming for higher selectivity and lower energy footprints during synthesis. New process designs often look for ways to recycle solvent, reduce emissions, or recover byproducts for other streams, shaping greener chemistry initiatives that industry regulators increasingly expect. Researchers publish work on copolymer blends, testing mechanical properties, chemical resistance, or processability in both controlled and real-world conditions. Others dive deeper into toxicology and environmental impact studies, designing safer containment and remediation strategies or evaluating substitution potential in consumer goods, especially where regulatory shifts impact allowed monomer lists. Collaboration between industry and academia plays a key role, as no single lab can cover the multifaceted performance and safety outcomes required for long-term success in advanced applications.

Toxicity Research: Danger and Demand for Vigilance

Toxicology remains a major focus for anyone handling or evaluating 2-Methylacrylonitrile. Acute exposure causes respiratory and neurological symptoms, as the molecule interferes with normal cellular respiration at the biochemical level. Direct skin contact leads to immediate irritation or burns, and even vapor exposure carries notable chronic risks if not tightly controlled. Animal studies reveal impacts at lower doses than many other nitriles, underscoring the need for robust workplace protection and spill control. Regulatory agencies monitor emission limits and set occupational exposure thresholds, while chemical manufacturers run ongoing tests for breakdown products, environmental persistence, and potential bioaccumulation. Research continues into detection and remediation technologies, providing tools that help catch leaks long before they lead to occupational exposures or accidental releases into the environment.

A Glimpse of What The Future Might Hold

Innovation continues in how chemists, engineers, and safety specialists manage and extend the value of 2-Methylacrylonitrile. Growing focus on sustainability and workplace health fuels the search for greener production routes, more effective stabilization, and cleaner downstream processing. If regulations tighten further on hazardous monomers, demand could shift toward alternatives, but for now, the unique features of this molecule anchor it in select, critical formulations. Efforts to cut occupational risk—through improved containment, automated dosing, and safer transportation systems—lead the way. Forward-looking projects test bio-based feedstocks, efficient recycling, and closed-loop containment strategies, balancing performance with environmental responsibility. As industries continue to push boundaries in advanced materials, electronics, and specialty resins, safe, efficient access to flexible intermediates like 2-Methylacrylonitrile remains as much about operational culture and technical skill as about raw material cost or supply chain strength.




What is 2-Methylacrylonitrile [Stabilized] used for?

What It Shows Us About Modern Chemistry

Walk through a chemical manufacturing plant or spend time with a group of research chemists, and they'll tell you how chemical building blocks shape real products. 2-Methylacrylonitrile [Stabilized] falls into this group—not flashy, not something you see on a grocery store shelf, but important in ways you probably feel the effects of every day.

Key Use: Making Plastics Stronger and Better

Most people care about plastics only when they break or pollute, but improving these materials makes a difference in durability and performance. 2-Methylacrylonitrile [Stabilized] helps craft specialty plastics and resins. Fibers in clothes last longer, car parts handle more stress, and electronics stand up better to heat and regular wear because this chemical links up with others, forming tight polymer chains. The “stabilized” label matters here, too: chemists add a stabilizer to stop accidents in storage and shipping. Without it, the compound could break down or cause dangerous reactions, especially if exposed to heat or light.

Creating High-Performance Adhesives and Coatings

Working in aircraft or automotive repair, I’ve seen adhesives fail under tough conditions—humidity, vibration, heat. Engineers and safety inspectors worry about paint flaking off parts or glue cracking at the wrong time. Manufacturers look for molecules that make coatings stick firmer and resist weather—2-Methylacrylonitrile [Stabilized] delivers those properties. In these applications, it acts as a key ingredient in advanced glue formulas and marine coatings. These areas benefit from strong chemical bonds, resistance to solvents, and improved lifespan.

Specialty Products You Might Not Expect

Beyond the obvious uses, this chemical shows up in places people rarely consider. Research teams work with 2-Methylacrylonitrile to create intermediates for pharmaceuticals or high-tech performance fibers. Some companies experiment with it for next-generation printing inks, hoping to print more vivid packaging with less environmental harm. One chemical engineer I worked with shared stories about using similar chemicals to help labs meet tougher air-quality rules, swapping materials in filters or membranes to trap pollutants better.

Health and Safety Concerns

No responsible commentary would gloss over safety. The toxicity of acrylonitrile-based compounds has raised eyebrows for decades, linking to possible cancer risk at high exposures. Regulators in the US and Europe keep a close eye on worker exposure as well as waste management at plants that handle this substance. Storing and transporting any “stabilized” volatile chemical demands regular inspections and emergency plans. Training and closed handling systems have reduced incidents, but workers’ advocates push for constant improvements.

Moving Towards Safer, Greener Chemistry

The chemical industry faces pressure to cut down on environmental impact and improve safety. Researchers test alternative molecules whenever possible, looking for the same performance without the same risks. Still, totally replacing compounds like 2-Methylacrylonitrile hasn’t proven easy. Some companies now treat and recycle waste on-site, reducing runoff and accidental spills. Others partner with academic labs to refine reactions, cutting down on toxic byproducts. As a field, chemistry keeps evolving, always searching for new materials that balance performance, cost, and safety. 2-Methylacrylonitrile [Stabilized] doesn’t make headlines, but it pushes companies to ask hard questions about both progress and responsibility.

What are the safety precautions when handling 2-Methylacrylonitrile [Stabilized]?

Understanding the Chemical

Working with chemicals carries a certain routine in my life, and 2-Methylacrylonitrile quickly stands out for its sharp, acrid odor and volatility. That smell alone signals caution. This clear liquid doesn’t ask for much before showing its dangerous side—contact brings irritation, vapors overwhelm the nose and throat, and the risk of fire hovers with every splash or spill. Nitriles have a knack for making a person work carefully, and past mistakes stick in the mind far longer than the fumes do.

Why Protective Gear is a Must

A direct encounter with 2-Methylacrylonitrile led to stinging eyes one summer, making goggles a personal rule. Thick gloves, splash-resistant apron, and faceshield join the routine, cutting down exposure and building confidence in messy situations. Respiratory masks rated for organic vapors stay close. Eyes, lungs, and skin deserve that layer between them and something potent.

Ventilation and Air Quality

Don’t trust stale air. I learned to handle volatile chemicals only where air moves freely—fume hoods, extraction fans, open windows if nothing else. Time indoors with this liquid turns stuffy without proper airflow, and even a small spill turns the atmosphere harsh. CO2 and chemical monitors offer early warning that air stops being safe long before the nose notices. Poor ventilation shortens careers.

Storage and Spill Sense

This chemical flips from safe to dangerous with a quick temperature jump or sunlight. Keep containers in cool, shaded areas, with tight lids and clear labels. I found that stacking chemicals where the floor dries slow and sunlight shines bright asks for trouble. Get special containers, avoid mixing with acids, oxidizers, or amines, and never store above eye level. Late-night shifts taught me the value of spill kits and sand buckets on standby—seconds count in a fast-moving emergency. Cleanup means suited-up workers, absorbent material, and a pace that avoids splashing or splattering.

Fire Hazards and Response

Combustibility changes your approach—no open flames, static discharge, or ungrounded electronics belong where 2-Methylacrylonitrile waits. Colleagues spilled some near a space heater once and the reaction was swift. Water doesn’t stop this sort of fire; foam or dry chemical works better. Learn extinguisher locations, walk the route to the emergency shower, and know who can call emergency services quickly. Dry drills sink in far better than an unplanned scramble.

Training and Medical Precautions

Experience only goes so far—proper training saves lives. Rely on the chemical’s Safety Data Sheet (SDS). Clear procedures for emergencies keep nerves steady. Old habits die hard, but fresh eyes notice shortcuts or bad habits that slip in. I keep a list of emergency contacts near the lab door, encourage reporting every splash or headache, and refresh training for the whole team twice yearly. A culture of safety depends on honest conversations and learning from close calls.

Looking Ahead: Keeping Safe at Every Step

There’s nothing routine about handling something as reactive as 2-Methylacrylonitrile. Thoughtful storage, practiced response, and respect for protective equipment matter more after a bad experience. No shortcut beats protocol, and no job asks for personal risk. Education, good airflow, and proper gear turn chemical handling into a job done right, every time.

What is the proper storage condition for 2-Methylacrylonitrile [Stabilized]?

Why Storage Matters

I’ve seen firsthand how handling chemicals like 2-Methylacrylonitrile [Stabilized] can go sideways if the right storage isn’t used. This isn’t a compound most people deal with casually. Used in specialty plastics and resins, it's on quite a few chemical hazard lists for good reason. If left in the wrong place or in contact with the wrong materials, it can put people and facilities at risk. Several industry accident reports mention fires or serious exposure issues tied to poor chemical storage practices—rooms too warm, caps not tight, incompatible storage with strong acids or bases, and the lack of proper venting.

Keep It Cool, Keep It Stable

2-Methylacrylonitrile wants a stable, cool spot—usually below 30°C (86°F). Heat speeds up unwanted reactions. I once saw a drum stored near a south-facing loading dock; the temp spiked in the afternoon and the pressure built up until the vent started hissing. Nobody wants that in their workspace.

Light is the other enemy. Anytime nitriles soak up daylight for long, they can break down or even kick off polymerization inside the drum. Tuck the container away from windows. A solid, closed cabinet helps a lot. Some labs paint windows or use blackout curtains near their chemical shelves. It’s a tried and true solution that makes a real difference in chemical longevity.

Avoiding Cross-Contamination

Mixing this with incompatible substances brings trouble. 2-Methylacrylonitrile reacts with strong oxidizers, acids, and bases, which shows up as smoke or unexpected heat. National Fire Protection Association (NFPA) safety sheets warn about this: don’t park it anywhere near bleach, peroxide cleaners, or caustic drain openers. I organize storage cabinets by hazard class. Colored labels and printed inventories keep things clear so nothing gets cross-contaminated by accident.

Ventilation and Pressure Relief

Pressure can build up if vapor collects inside sealed drums, especially in warm rooms. Facilities use vented containers or pressure-relief caps for that reason. Fume hoods and ventilated storage rooms limit the risk if something leaks or off-gasses. OSHA standards require good exhaust in places where volatile and hazardous organics sit on shelves. I inspect storage setups monthly, and the venting system gets checked as part of that—duct tape fixes don’t cut it. You really notice the difference if a leak occurs: a ventilated room clears the air in minutes, keeping staff safe and alert to the issue.

Container Integrity

Only stash this chemical in airtight, chemical-resistant containers—usually glass or specialty plastics. Metal corroded on contact in one older setup I saw, and the repair bill wasn’t pretty. Containers also need tight, undamaged seals, not just for safety but also to hold in the stabilizer that keeps the chemical from polymerizing in storage. Regular checks catch cracks, warping, or degraded seals before they can cause headaches later.

Smart Labeling and Emergency Plans

Every label counts. Clear, visible chemical names, dates, and hazard warnings cut down on mistakes. I’ve seen confusion lead to near-misses; proper labels prevent that. Emergency spill kits nearby, eyewash stations, and easy-to-read signage round things out. Local fire departments appreciate when storage spots are well-marked and up to code. Keeping emergency plans drilled and updated doesn’t just check a box—it gives every worker a shot at responding fast if something slips past the best-laid plans.

What are the potential health hazards of 2-Methylacrylonitrile [Stabilized]?

What People Need to Know About Exposure

Walking into any industrial chemical storage area, the sharp scent of acrid fumes tells you something invisible hangs in the air. 2-Methylacrylonitrile is one of those compounds you don’t want to ignore. Used in making plastics and resins, this chemical rarely comes into contact with the average person but means real risk for workers and the environment. I remember my first encounter with hazardous chemical labels—words like “toxic,” “volatile,” and “flammable” marked out a clear physical threat. It hits home how easily health can get overlooked in pursuit of production.

Health Hazards: Breathing and Bodily Harm

Inhaling vapors is the fast track to trouble. Shortness of breath, headaches, and eye irritation show up even at low concentrations. The body doesn’t like cyanide compounds, no matter their shape, and 2-Methylacrylonitrile triggers classic signs of poisoning: dizziness, confusion, and in higher doses, even convulsions. Small spills lead to big consequences, so even quick exposure means not just a few days of discomfort but potentially lasting respiratory or neurological damage.

Skin matters, too. Touching this stuff can cause burns, redness, and blisters. I've met more than a few old-timers in plants who still carry scars from decades-old contact. Never assume gloves or short sleeves make enough of a barrier against something so reactive. If it gets into the bloodstream through cuts or absorption, the poison spreads—nausea, weakened muscles, and risk to major organs.

Environmental Fallout

Leaking into soil or water, 2-Methylacrylonitrile poses problems for far longer than a bad day at work. Fish and wildlife pick up the chemical, which builds up the food chain and doesn’t stay put. Once tainted, water sources can cause indirect human exposure. This chemical’s stability acts like a double-edged sword: great for shelf life, risky for the long-term health of ecosystems.

Facts Grounded in Science—Not Hype

Agencies like OSHA and the NIOSH run tight ship when setting exposure limits. OSHA’s ceiling for acrylonitrile and related compounds stays low (few parts per million), drawing on data from accidental releases and hospital records. Animal studies add weight, showing liver and brain damage at chronic exposures. I trust firsthand accounts and peer-reviewed research over industry PR; the evidence piles up for cancers and genetic changes in overexposed workers. These aren’t distant worries for someone mixing or transporting the material—they turn into real-life costs, doctor visits, and lost years.

Getting Safety Right—What Needs Doing

I’ve seen quick fixes and shortcuts backfire in chemical handling. What works are airtight storage, professional-grade respirators, and routine blood checks for workers. Emergency showers and training seminars make a difference, so no one’s guessing about proper decontamination or signs of poisoning. Management plays a key part by making safety gear easy to get and following up after spills (not waiting for OSHA to show up).

Substitution stands out as the best solution in some lines of manufacturing. If a less toxic substitute gets the job done, the risk disappears. Pushing for constant air quality checks, good labeling, and whistleblower protection pushes everyone to stay honest. Nothing replaces healthy respect for chemicals that can ruin lives, but real commitment by companies can shape safer workplaces and cleaner communities.

How should 2-Methylacrylonitrile [Stabilized] spills or leaks be managed?

Understanding the Real Risks

Walking into a space where chemicals like 2-Methylacrylonitrile have spilled, folks often feel the urge to fix things fast. Rushing sets up risk for everyone nearby. This stuff isn’t only flammable—its fumes bring eye and lung irritation. Getting careless, even for a minute, might mean years of health troubles or bad news for the environment. Every factory worker, warehouse manager, and hazmat trainer who’s spent time cleaning up the mess knows there’s no mercy from chemicals that can burn or poison.

What Safety Actually Looks Like

If you’ve ever watched an emergency team suit up, you see it’s not about the gear looking impressive—it’s about protection. Skin, lungs, eyes—it all gets covered before anyone gets near the spill. Using rubber gloves, splash-proof goggles, and full-face respirators may seem like overkill at first, but ask anyone who skipped them during a sloppy spill and they’ll tell you not to repeat their mistakes.

Ventilating the area hardly feels optional. Evacuation for people not trained for chemical mishaps ought to come without debate. Even a small accident without fresh air can cause headaches and breathing trouble in seconds. Proper air flow goes beyond opening a window; mechanical ventilation or fume hoods pull poison out of the room much faster.

No “Wing It” Cleanups

Throwing sand or absorbent on a chemical without knowing what’s coming off that floor only makes things dicey. For 2-Methylacrylonitrile, using the right spill pillows or granular absorbent locks up liquid fast and helps keep vapors from spreading. Tools used for cleanup must get packed into sealed drums, clearly marked for hazardous waste, not tossed in the regular trash. Anyone who’s spent time on the back end of faulty cleanup understands how toxic residue can find its way into drinking water if waste isn’t handled correctly.

Neutralizing 2-Methylacrylonitrile requires training, not home hacks or internet shortcuts. Untrained hands working with acids, bases, or exotic neutralizers often end up starting more problems—heat, toxic gases, or runaway reactions. Calling in a hazmat team costs time and money but beats emergency room visits or lawsuits every day of the week.

Preventing the Next Spill

Good practices usually start before an accident, not afterward. Tight storage, regular inspection for leaks, and keeping protocols at eye level for every new worker actually keep spills rare. In my experience, companies that invest in regular drills and update safety training see fewer accidents. Labeling every bottle and storing everything with space for spill containment works better than any last-minute scramble.

If a spill does happen, reporting it isn’t something to drag out. Delays let toxins creep further and put clean-up teams in a tougher spot. Immediate notification to supervisors, health and safety engineers, and—if it reaches water or public spaces—local environmental agencies, protects everyone soonest. Ignoring paperwork won’t dodge legal or environmental fallout; responsibility closes incidents faster than hiding mistakes.

Education Over Assumptions

The root of safe chemical management sits in targeted, recurring training. Reading safety data sheets, running practice drills, and rewarding people who spot unsafe habits build habits stronger than any locked cabinet. The more people treat 2-Methylacrylonitrile with clear respect and solid routine, the less drama unfolds on the shop floor, and the fewer stories anyone tells about spills gone sideways.

2-Methylacrylonitrile [Stabilized]
Names
Preferred IUPAC name 2-methylprop-2-enenitrile
Other names Methacrylonitrile
2-Cyanopropene
2-Methyl-2-propenenitrile
2-Methyl-2-propenenitrile
Methacrylic nitrile
Methacrylonitrile (stabilized)
Pronunciation /tuːˌmɛθ.əl.əˌkrɪl.oʊˈnaɪ.trɪl/
Identifiers
CAS Number 126-98-7
Beilstein Reference Beilstein Reference: 1361163
ChEBI CHEBI:82344
ChEMBL CHEMBL16237
ChemSpider 12535
DrugBank DB08272
ECHA InfoCard 03d68e74-f173-41a9-b5cc-37aed64b6ea5
EC Number 202-456-5
Gmelin Reference 9197
KEGG C01796
MeSH D008831
PubChem CID 7847
RTECS number OX5950000
UNII T8T283Q89T
UN number UN2369
Properties
Chemical formula C4H5N
Molar mass 67.09 g/mol
Appearance Colorless liquid
Odor Unpleasant, characteristic odor
Density 0.804 g/mL at 25 °C (lit.)
Solubility in water Soluble
log P 0.2
Vapor pressure 3.6 kPa (at 20°C)
Acidity (pKa) 11.2 (at 25°C)
Basicity (pKb) pKb ≈ 9.2
Magnetic susceptibility (χ) -7.48 × 10⁻⁶ cm³/mol
Refractive index (nD) nD 1.409
Viscosity 0.57 mPa.s at 25 °C
Dipole moment 3.8 D
Thermochemistry
Std molar entropy (S⦵298) 284.6 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) 108.2 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -2009 kJ/mol
Hazards
GHS labelling GHS02, GHS06, GHS09
Pictograms GHS02,GHS07,GHS09
Signal word Danger
Hazard statements H301+H311+H331, H317, H319, H335, H341, H351, H370
Precautionary statements P210, P261, P280, P301+P310, P304+P340, P308+P311, P312, P370+P378, P403+P233
NFPA 704 (fire diamond) 3-3-2
Flash point 50°F
Autoignition temperature 550°C
Explosive limits 3.1% - 13.5%
Lethal dose or concentration LD50 oral rat 25 mg/kg
LD50 (median dose) LD50 (median dose): Oral-rat LD50: 25 mg/kg
NIOSH EU9840000
PEL (Permissible) PEL (Permissible) of 2-Methylacrylonitrile [Stabilized]: 1 ppm
REL (Recommended) REL (Recommended): 1 ppm (3 mg/m³)
IDLH (Immediate danger) IDLH: 25 ppm
Related compounds
Related compounds Acrylonitrile
Methacrylonitrile
Crotononitrile