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Di-N-Butylamine didn’t pop up overnight. Its roots stretch back through the industrial age when curiosity about amines pushed chemists to try new syntheses and applications. The post-war chemical boom made basic amines like this one accessible at scale. Early research in the mid-20th century explored both its potential as an intermediate and its behavior compared to other aliphatic amines. For years, this chemical found its way into laboratories, setting the foundation for many reactions that shape chemical manufacturing today.
Di-N-Butylamine belongs to the family of secondary amines, with the molecular formula C8H19N. It forms a colorless to yellowish liquid, known for its fishy, ammonia-like odor that makes you wish you had better ventilation in the lab. I still remember my first run-in with a bottle: it stubbornly clung to my gloves, chasing me out of the storeroom. But beyond the smell, it plays a central role as an intermediate in the synthesis of other chemicals. Compared to its cousins, like ethylamines and methylamines, its longer carbon chains create unique reactivities and solubility profiles, opening doors in both organic synthesis and industrial uses.
Every chemist needs a healthy respect for what these molecules can do. Di-N-Butylamine has a boiling point hovering over 160°C and mixes with organic solvents but stays separate from water. Its relatively low molecular weight means vapor will get loose in the lab unless lids stay tight. The basicity of the amine group allows it to grab protons with ease, reacting readily with acids to form salts and with alkyl halides to build bigger, more complex molecules. Since it’s not the most volatile amine, handling it compared to trimethylamine feels a bit safer, but that doesn't mean you can forget about the safety goggles.
Quality defines every batch, and that shows up on labels. Technical data often covers purity (usually above 99%), moisture content, and residual starting material. For someone in quality control, recognizing the difference between a pure bottle versus one tainted with leftover n-butyl chloride can save both time and product recalls. I once saw a project's scoping derailed because someone ignored a small impurity. Regulatory labels call for keen eyes, especially regarding workplace exposure limits and flammable liquid handling instructions. The paperwork feels endless, but slip-ups put workers and downstream applications at risk.
Laboratories and factories lean on two main routes for making di-n-butylamine. Reductive amination of butyraldehyde with ammonia, under the pressure of hydrogen gas and a nickel or copper catalyst, creates a mix of primary, secondary, and tertiary amines. Refinement steps separate out the valuable secondary fraction. Alternatively, alkylation of ammonia or mono-n-butylamine with n-butyl chloride under controlled heat also leads to the secondary amine. These processes require precise temperature and timing control, or else side reactions eat into the yield. Manufacturing spins up plenty of by-products, so operators steady their process with constant analysis and recycling.
This isn't just a benign bystander. Di-N-Butylamine reacts vigorously with acids, forming salts that can be easy to purify or further process. It joins with alkyl halides to generate tertiary amines, boosts urea synthesis, and even shows up as a building block when constructing certain dyes or pharmaceuticals. I recall an attempt at amide formation with it—watching the reaction heat up in real time drove home its energetic chemistry. Its ability to attribute nitrogen directly into rings or chains under the right conditions sets it apart from less reactive amines, showing off the flexibility amines bring to synthetic organic chemistry.
You’ll see it as Di-n-butylamine, DNBA, or sometimes dibutylamine, but be careful: “dibutylamine” might confuse folks since some chemists consider both the branched and straight-chain forms together. Naming confusion has caused more than one misorder in my experience. Accurate product guides and standardized nomenclature, like CAS numbers, make a big difference in keeping inventory and experimental records reliable.
Many basic amines demand respect, and di-n-butylamine falls squarely into that group. It can cause irritation to skin, eyes, and respiratory tracts. Unprotected exposure in a poorly ventilated room can sour anyone's day. Long-sleeve lab coats, gloves, and splash goggles act as the first line of defense. Engineering controls matter, too—without fume hoods, exposure risk rises fast. The safety data sheets highlight restricted occupational exposure limits, so health professionals must monitor air and workplace concentrations. Spills need prompt clean-up, since this liquid vaporizes, and inhalation risk jumps in warm conditions. Training sessions and drills help, but real-world vigilance remains the best defense.
Di-N-Butylamine’s use cases span industries. In agrochemicals, it plays a role as a key intermediate for herbicide production—think of how the world’s insatiable hunger for wheat and rice meets rising yield targets. Rubber chemical manufacturing draws on it to make accelerators and anti-aging agents, keeping tires reliable. It pops up in the pharma sector as a precursor for active ingredients, and crop science firms rely on it too for specialty pesticides. Its secondary amine status makes it a go-to for complex synthesis in dye and pigment production, offering both hues and resilience. I've seen colleagues debate its advantages over similar amines in making corrosion inhibitors and metal treatment chemicals. Even though other intermediates occasionally take its place, the combination of reactivity and manageable volatility secures its spot in these processes.
The science around di-n-butylamine continues to evolve. Organocatalysis and green chemistry trends send researchers back to molecules like this one, exploring lower-waste transformations and novel catalytic cycles. New routes focus on reducing hazardous by-products and shrinking energy footprints. Technologists eye process intensification—making sure large-scale production leaves behind less pollution. Formulators and application chemists remain alert to fresh ways of making value-added products, like custom herbicides or heat-resistant elastomers. Academic work in synthesis often picks up di-n-butylamine for its predictable but flexible reactivity, offering students and postdocs a gateway to advanced techniques and more efficient synthetic designs.
Toxicological research drives everything from workplace rules to product bans. Animal studies point to low acute toxicity, but repeated exposure can lead to organ and respiratory issues. Regulatory authorities worldwide review available studies, updating exposure guidelines and labeling every few years. Clinical data trace accidental human exposures mostly to headache, irritation, and reversible symptoms, but long-term effects remain less well mapped. I've seen regulatory committees reevaluate risk assessments when new data surface, especially in the context of worker safety or environmental contamination from factory effluent. The need for fully understood metabolic pathways and breakdown products pushes toxicology into the spotlight every few years.
The future won’t sideline amines anytime soon. As green chemistry and sustainability reshape industries, producers experiment with cleaner synthesis, recycled feedstocks, and safer methods for downstream use. Demand for crop protection products keeps the chemical in circulation, and a broader move toward specialty coatings breathes new life into its application in polymers and elastomers. Process control advances and digital tracking across supply chains should lock down quality and traceability. At the same time, worker protection protocols will only become more refined, given society’s focus on occupational health. Research circles poke at both new uses and potential environmental effects, so I expect the story of di-n-butylamine to keep unfolding.
Di-N-Butylamine finds itself at the center of several chemical processes that most people never think about. Folks working with agricultural supplies might recognize it as a key ingredient in making certain herbicides. Take the common weedkillers used on farms and lawns: many of them come from chemical families that begin life with this very compound. The way Di-N-Butylamine reacts with other chemicals gives manufacturers the foundation they need for effective weed control, and that doesn’t just keep lawns looking neat—it affects food crop yields and farm profits across the world.
Anyone who’s ever wondered how car tires or conveyor belts hold up under years of stretching and bending should look at chemicals like Di-N-Butylamine. In the rubber industry, it steps in during the process of making accelerators—these help rubber cure faster, which means more reliable products rolling off the line. The plastics world leans on it for similar reasons. Stabilizers made using Di-N-Butylamine keep items like plastic wrap and bottles sturdy even after months in sunlight or heat.
On a more personal note, I’ve come across this chemical’s influence in places people would never expect. For example, a friend who works in the cleaning supply business mentioned that certain industrial detergents count on compounds derived from Di-N-Butylamine. Cleaners for metal surfaces, shampoos for carpets and even a few specialty soaps all rely on its chemical backbone for that extra kick. Sometimes the simplest answer to stubborn stains or persistent dirt lies in how these compounds interact with oils and grime.
Manufacturers who work on pharmaceutical intermediates also believe in the power of Di-N-Butylamine. Medications for blood pressure, infection control, or even metabolic issues might start their journeys in the same chemical vats that use this compound. In the dye industry, bright and lasting colors depend on the stability Di-N-Butylamine offers as a building block. It allows the creation of pigments that stay vibrant on textiles, plastics, and even in some inks.
Turning to workplace matters, safety teams have a lot to consider. Di-N-Butylamine, like so many industrial chemicals, brings potential hazards. Workers in plants using this compound often need strong training and protective gear to avoid skin or breathing issues. Setting clear rules and monitoring exposure means fewer accidents and healthier crews. Public confidence hinges on these behind-the-scenes steps working as promised.
Regulators and researchers keep a close watch on chemicals used in food production, public spaces, and medicine. Looking for greener alternatives isn’t just policy—it’s practical sense. I’ve met chemists pushing for plant-based inputs or better recycling of chemical waste. This shift doesn't stop at idealism; the new methods often cut costs over time and boost trust between industries and the people they serve.
Di-N-Butylamine, with the chemical formula C8H19N, lives in the world of organic compounds where small tweaks in structure have big consequences in chemistry and industry. Here, "di" signals two butyl groups and "amine" points to the nitrogen atom central to its identity. The correct formula—C8H19N—tells us this amine brings eight carbons, nineteen hydrogens, and a lone nitrogen together.
A chemical formula like C8H19N is more than shorthand. It guides handling, safety practices, and even shapes how companies label and transport materials. People sometimes overlook the real-world importance of such details until something goes wrong. I once helped troubleshoot an off-smelling solvent batch in a paint facility. We traced the problem to a misread on a shipping manifest: the wrong formula led to the wrong product, and costly hours fixing the batch followed. Precise chemical knowledge prevented worse hazards.
In practice, the arrangement of atoms in Di-N-Butylamine lets it act as a base in organic reactions. Manufacturers turn to it for rubber additives, corrosion inhibitors, and even pharmaceutical intermediates. A chemical’s formula opens up these paths but also signals risks—flammability climbs with some organic amines. Guidelines from trusted sources like the National Institute for Occupational Safety and Health (NIOSH) recommend proper ventilation and personal protective gear especially in tight indoor labs.
Anyone storing or transporting Di-N-Butylamine needs to know how it reacts with air, acids, or even sunlight. Spillage or mixing with other chemicals sometimes produces toxic fumes. Data from the European Chemicals Agency highlights risks of respiratory and skin irritation, demanding respect and diligence from workers and supervisors. It helps to remember tales of chemical mishaps shared over coffee in the break room—most follow from someone getting complacent with basic facts like formulas and safe-use sheets.
Google’s E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) standards push both writers and readers to favor reputable information. If you check material on Di-N-Butylamine, you’ll find the same consistent formula—C8H19N—listed in resources like the Merck Index or PubChem. Mixing up butyl groups or misreading the N-position can change risk profiles dramatically, so cross-checking sources actually protects people and property in the long run.
No single step will solve every hazard tied to organic amines, but regular training and labelling updates work wonders. Digital inventories that flag compounds based on formula help avoid mix-ups. Field experience—getting your hands dirty in the warehouse or lab—does more for understanding safe handling than paperwork ever could. Communities where people share practical advice on chemical safety build trust that spreadsheets and checklists alone can’t touch.
The formula C8H19N means more than chemistry; it’s a password to safer workplaces, smoother production, and fewer emergencies. My own missteps taught me that even seasoned folks need to look up and confirm details. If you want to keep things running and people safe, respecting the power and meaning of a simple chemical formula pays dividends every time.
Di-N-Butylamine often turns up in places most people wouldn’t expect—sometimes in rubber production, sometimes around chemical processing. It’s a chemical with a sharp smell, and it’s not something folks handle casually. I once toured a factory where workers wore protective suits and respirators just to move a drum of the stuff. Those precautions speak volumes.
Exposure to Di-N-Butylamine can mean real trouble for people’s lungs and skin. Breathing it in or touching it can lead to irritation, burns, or worse if the exposure is prolonged or repeated. Once, I met a worker who got a splash on his hand—he washed up quickly, but told me he felt a stinging pain for hours. Enough studies link amines like this to nausea and headaches too. According to the National Institute for Occupational Safety and Health, extended inhalation can harm your respiratory tract.
Spills don’t stay on the surface. A chemical like this evaporates into the air and soaks into clothes, then clings to the skin. Over time, people might not notice how much gets absorbed. And while the short-term symptoms seem reversible with quick washing or fresh air, there’s a risk that builds up through repeated contact.
Spilled Di-N-Butylamine won’t just vanish. It dissolves well in water, which means a leak can spread in groundwater or rivers. Fish and aquatic plants tend to suffer around these compounds. It disrupts their breathing and growth. I once read about an industrial spill—local biologists documented dead fish and changes in water quality for weeks.
Wildlife and water systems need careful protection. If this chemical gets into soil, it won’t sit still. Rain carries it away, spreading the risk further. The European Chemicals Agency classifies Di-N-Butylamine as dangerous for aquatic environments. I’ve seen clean-up crews spend days cordoning off ponds and streams, racing against time to stop larger contamination.
No everyday user finds themselves handling Di-N-Butylamine, but workers in tire factories, chemical plants, or labs don't always get much choice. Safety training makes a difference, yet accidents happen. Federal and state rules set workplace exposure limits. Proper ventilation, secure storage, and protective gear prevent the worst scenarios. That’s not just regulatory red tape—it’s a lesson written in real people’s injuries.
Industries that make or use this chemical can do better by developing closed systems and investing in leak detection technology. Regular chemicals audits help spot risks before they become calamities. I keep hearing from workers who want more than the minimum safety gear—good companies listen to those voices.
Many companies now look for safer alternatives or tweak their production processes to rely less on hazardous amines. It isn’t always simple or cheap, but success stories show real progress. Safer handling isn’t optional—it’s the cost of taking care of workers and the wider world.
Our environment doesn’t get a second shot. The risks from a chemical like Di-N-Butylamine demand honesty and action—something regulators, employers, and citizens all have a stake in.
Di-N-Butylamine shows up in labs and some manufacturing settings for its role as a chemical intermediate. The way it reacts with air and moisture, and its readiness to catch fire, raises some eyebrows. I’ve seen how a little bit of vapors in a poorly ventilated area sends alarms wailing. Oddly enough, its odor gives it away before the risks become visible.
Chemicals like Di-N-Butylamine don’t belong in random cabinets or shared lockers. Keep it in a flammable liquids storage cabinet, away from oxidizers, acids, or bases. Cabinets that lock, with clear chemical labels, send the right signal: this is a high-risk product. Leaky bottles have no business on shelves—only tightly sealed containers should stay in a cabinet, far from sunlight and far away from heat sources like radiators.
If humidity sneaks in, corrosion kicks up. Metal drums or rusty containers spell trouble, and the smell gets into everything if a spill happens. I once found out the hard way that the wrong plastic containers let fumes escape, even with the lid on. Stick with the manufacturer-recommended materials; they’ve done the testing.
Personal protective equipment brings a lot more than comfort. Closed shoes, splash-proof goggles, chemical-resistant gloves, and the right apron—these protect skin and eyes from grime and burns. Before opening a container, check ventilation. I’ve watched newcomers skip that step, and the room fills with a stink nobody wants to breathe.
Training matters as much as equipment. Clear instructions—“pour slowly,” “never pipette by mouth,” “wash off spills immediately”—go further than warning signs on the wall. It’s not just a matter of keeping gloves on. Knowing the protocol for flushing eyes or skin, without stopping to consult a manual, saves time if someone makes a misstep. In my experience, teams that practice emergency responses handle real mistakes with less panic.
You can’t pour leftover Di-N-Butylamine down the drain. Waste goes into clearly marked hazardous waste containers, with clear labeling of what’s inside—nobody enjoys cleaning up mystery chemicals. Absorbent pads and spill kits hang on hooks nearby. I’ve seen spill kits collect dust until someone bumps a bottle—then everyone scrambles to remember where the neutralizer powder sits.
Keep a clear path from storage cabinets to exit doors. Blocked exits and overcrowded workspaces lead to more injuries than chemicals ever do. If a large spill happens, I’ve seen labs call the fire department, because Di-N-Butylamine can make toxic fumes when it burns.
Safety data sheets sit in plain sight for a good reason: they clear up confusion and help people react fast. Regular inventory checks pick up missing containers or labels before someone grabs the wrong item. Every time someone logs a chemical use or disposal, it closes the loop on good practice.
I’ve learned that safe storage and careful handling protect not just the person working with chemicals, but everyone in the building. There’s no shortcut or hack—just habits, preparation, and a culture that puts people’s health above convenience. These details prevent emergencies and give everyone one less thing to worry about on the job.
Di-N-Butylamine often pops up in industries that deal with chemicals, and for good reason. A clear and colorless liquid with a faint fishy odor, this chemical grabs attention, partly because it can stick around your memory—the smell alone lingers. Its chemical formula is C8H19N, and it brings both practical uses and safety concerns.
This substance boils at about 159 °C and freezes at −63 °C. These numbers tell us quite a bit about where this liquid belongs. Hot warehouses or summery shipping containers won’t turn it vapor right away, but heat will push the vapor around if storage isn’t taken seriously. The low freezing point means the liquid stays fluid unless things get seriously frigid—useful for colder work environments. These aren’t just data points; they guide real-world handling.
Di-N-Butylamine’s density rests at about 0.77 grams per cubic centimeter, making it less dense than water. Pour it into a glass of water and it will float, bringing a slick layer to the top in the right conditions. This difference in density shapes cleanup efforts and spill responses, especially in labs or facilities where safety is not just a rule, but a habit. Solubility speaks volumes too. In water, it dissolves moderately—so it doesn’t disappear without a trace. In organic solvents like ethanol or ether, it blends in much more readily. For manufacturers and lab techs, knowing where the chemical wants to travel offers control. For emergency responders, this knowledge means safer, quicker action.
Vapor pressure lands around 3.8 mm Hg at 20 °C. The number itself might not seem meaningful unless you’ve ever walked into a storage room and caught that telltale whiff. It evaporates slowly, but it still escapes into closed spaces, especially on warm days. That’s how the fishy scent sneaks up—small leaks or poor ventilation turn into headaches for workers. The odor isn’t just a nuisance; it’s an early warning system in many settings, alerting people to leaks before things get out of hand.
Di-N-Butylamine burns. Its flash point sits around 48 °C, which means a stray spark or an overheated piece of equipment can kick up a serious fire. In contact with skin, it causes irritation—sometimes burns with prolonged exposure. Eyes fare no better. Gloves, goggles, and common sense aren’t optional here. Early in my own lab days, I saw minor mishaps escalate quickly while handling less aggressive chemicals. The risks with Di-N-Butylamine land somewhere between complacency and disaster if procedures get sloppy.
Ventilation turns out to be a non-negotiable feature for anyone storing or working with this chemical. Air movement keeps vapor levels low, keeping air safe for breathing and lowering fire danger. Personal protective equipment—nitrile gloves, splash-proof goggles, and lab coats—should always be on hand. Regular hydration breaks and decent training stand as shields against unplanned exposure.
Companies put a lot of effort into planning for spills. Proper labeling and secondary containment stop small leaks from spreading; material safety data sheets need to stay visible, not stashed in a drawer. Education and drills drive home the seriousness for both seasoned workers and new hires.
Di-N-Butylamine doesn’t wait for mistakes—handling starts with respect for its physical properties and an understanding of the simple but crucial habits that keep people safe.
| Names | |
| Preferred IUPAC name | N-Butylbutan-1-amine |
| Other names |
N-Butylbutan-1-amine Dibutylamine Dibutyl amine N-Butyl-1-butanamine Butylamino butane |
| Pronunciation | /daɪ en ˈbjuːtɪl əˈmiːn/ |
| Identifiers | |
| CAS Number | 111-92-2 |
| Beilstein Reference | 1361244 |
| ChEBI | CHEBI:40448 |
| ChEMBL | CHEMBL28547 |
| ChemSpider | 10817 |
| DrugBank | DB14089 |
| ECHA InfoCard | 13f27196-5daa-4e82-b1f6-13cb4b441737 |
| EC Number | 203-683-8 |
| Gmelin Reference | 8221 |
| KEGG | C01780 |
| MeSH | Dibutylamines |
| PubChem CID | 8131 |
| RTECS number | UX9625000 |
| UNII | Y3R51P8F96 |
| UN number | UN2249 |
| CompTox Dashboard (EPA) | DTXSID9020185 |
| Properties | |
| Chemical formula | C8H19N |
| Molar mass | 129.24 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Odor | Ammonia-like |
| Density | 0.763 g/mL at 25 °C(lit.) |
| Solubility in water | soluble |
| log P | 0.95 |
| Vapor pressure | 0.46 kPa (at 20 °C) |
| Acidity (pKa) | 10.98 |
| Basicity (pKb) | 3.35 |
| Magnetic susceptibility (χ) | -8.03×10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.419 |
| Viscosity | 1.05 mPa·s (20 °C) |
| Dipole moment | 0.92 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 247.6 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -44.9 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -4680.6 kJ/mol |
| Pharmacology | |
| ATC code | No ATC code |
| Hazards | |
| GHS labelling | GHS02, GHS05, GHS06 |
| Pictograms | GHS05,GHS06 |
| Signal word | Danger |
| Precautionary statements | P210, P261, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P310, P403+P233, P501 |
| NFPA 704 (fire diamond) | 2-3-1-Acide |
| Autoignition temperature | 320 °C |
| Explosive limits | 1.1–8.5% |
| Lethal dose or concentration | LD50 oral rat 640 mg/kg |
| LD50 (median dose) | LD50 (median dose): 750 mg/kg (oral, rat) |
| NIOSH | NIOSH: MA8225000 |
| PEL (Permissible) | PEL (Permissible Exposure Limit) of Di-N-Butylamine: 5 ppm (skin) |
| REL (Recommended) | 35 mg/m³ |
| IDLH (Immediate danger) | 100 ppm |
| Related compounds | |
| Related compounds |
n-Butylamine Diethylamine Dipropylamine Tri-n-butylamine |
