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Commentary: The Role and Reality of 1-Butylpyridinium Hydrobromide in Modern Chemistry

Historical Development

Chemists have relied on salts and ionic liquids long before niche compounds like 1-Butylpyridinium Hydrobromide showed up in labs. In the late twentieth century, researchers dug deeper into pyridinium-based salts, searching for environmentally friendlier solvents. Those early breakthroughs, in part, responded to growing awareness about the downsides of volatile organics used across chemistry. When people point to big advancements in “green chemistry”, it’s hard to ignore the leap ionic liquids brought to the table. 1-Butylpyridinium Hydrobromide didn’t make headlines instantly, but over the years, it gained traction because researchers needed stable, easy-to-handle alternatives for industrial processes and laboratory work.

Product Overview

1-Butylpyridinium Hydrobromide stands out as a quaternary ammonium salt where a butyl group links with the pyridinium framework, paired with a bromide anion. In everyday terms, researchers find it practical thanks to the specific behavior it brings to organic synthesis, extraction, and catalysis. Compared with older, less-selective additives and solvents, this salt often allows for sharper control and reduced toxicity. Real-world labs favor it because it is relatively simple to handle and offers performance that rivals more established materials, which haven’t always kept pace with tighter laboratory safety needs.

Physical & Chemical Properties

This salt usually appears crystalline, often either white or faintly off-white. Moisture in the environment can lead it to clump a bit, but it holds its own as long as you stop it from gathering too much water. Pyridinium salts like this show decent solubility in water, and their ionic nature helps make them less volatile than classic organic solvents. Thermal stability up to moderate temperatures makes 1-Butylpyridinium Hydrobromide suitable for many reaction setups. Compared with alternatives like imidazolium-based salts, this compound offers a slightly different reactivity profile, which comes down to the influence of the pyridinium ion and the relatively bulky butyl substituent. Many labs also note the powerhouse ability of hydrobromide as a counterion, delivering not just charge balance but also important chemical behavior in reactions or extraction processes.

Technical Specifications & Labeling

Modern chemical suppliers mark 1-Butylpyridinium Hydrobromide with clear labeling for purity, identifying numbers, and storage guidance. Purity matters, since excess water or contamination can wreck both experimental reliability and downstream synthesis steps. Laboratories testing it for advanced applications — like catalytic conversions or creating complex organics — often choose grades with minimal impurities and consistent particle size. Safety labels flag that the compound is not for consumption and must be kept well-sealed, often at room temperature away from strong oxidizers. What sets apart the products used in research is not just how pure they come, but the precise reporting of those metrics, something scientific teams expect now more than ever.

Preparation Method

Synthesizing 1-Butylpyridinium Hydrobromide usually comes down to a direct alkylation reaction. Starting with pyridine, a chemist reacts this with butyl bromide — a classic SN2 process — producing the quaternary salt in good yield. Neutralizing the mixture and recrystallizing the salt removes most side-products, and repeated washing clears out unreacted bromide or pyridine. Some synthesis routes involve more sophisticated steps to ensure the absence of environmental contaminants or solvent residues, often demanded by professional labs tapped into pharmaceutical or high-tech applications. These days, demand sways methods toward those that minimize byproducts, reduce the use of toxic reagents, and improve scalability.

Chemical Reactions & Modifications

Plenty of synthetic chemists look at 1-Butylpyridinium Hydrobromide as more than a bystander in their reactions. Its own structure — both hydrophobic and ionic — brings out interesting reactivity, especially in phase-transfer catalysis or ionic liquid solvents. Swapping out the bromide for other anions can change its solubility and reactivity. For lab work, that means you get the flexibility to fine-tune the environment for any number of organic transformations. Pyridinium ions, in general, allow for derivatization at the butyl group or the nitrogen, opening the door for new analogues that might show even better behavior in the right context. Modifying the side chains or counterions sometimes boosts ionic conductivity or lowers melting points, which matters a lot for developing batteries or advanced solvent systems.

Synonyms & Product Names

Besides the IUPAC title, researchers and vendors toss around names like N-Butylpyridinium Bromide or 1-Butylpyridinium Bromide. In chemical catalogs or research papers, you sometimes see it listed as [BPy]Br, particularly in the context of ionic liquids. This can matter when digging through older publications or comparing product lines between vendors. Consistency in naming means no one mixes up 1-Butylpyridinium Hydrobromide with similar-sounding, but chemically distinct, compounds.

Safety & Operational Standards

Safety in the lab hasn’t really been optional for years. 1-Butylpyridinium Hydrobromide avoids many pitfalls seen with organic solvents like benzene or chloroform. It isn’t as volatile or flammable, so inhalation risk drops. That said, standard practice still means gloves, goggles, and good ventilation. Accidental contact with skin or eyes should get rinsed with water, just as you’d do for any chemical salt. In case of large spills, dry collection and controlled disposal trump rinsing down the drain. Recent safety literature recommends keeping storage containers tightly sealed to stop the hygroscopic nature from messing up quality or safety. For waste, most institutions treat it as non-extremely hazardous, but local rules always set the final word.

Application Area

Outside textbook chemistry, 1-Butylpyridinium Hydrobromide finds purpose as a phase-transfer catalyst, in ionic liquid mixtures, and as a reagent for synthetic organic reactions. In my experience working alongside synthetic teams, swapping conventional volatile solvents for pyridinium-based salts offered sharper product yields and simpler purification. Electrochemistry researchers use it to enhance ionic conductivity in prototype batteries or to develop greener electroplating baths. In pharmaceutical research, it brings out selectivity not always seen with older agents, particularly when controlling stereochemistry or reducing byproduct formation. Its usefulness carries into environmental chemistry, where it helps extract and transfer target compounds with fewer environmental side-effects.

Research & Development

The chemical research community keeps pushing the envelope on how ionic liquids like 1-Butylpyridinium Hydrobromide can enhance process efficiency. Scientists examine its solvation ability for tricky organics, its behavior under electric fields, or its effect on catalytic rates. I’ve seen collaborative teams pull in specialists from academia and industry to develop new material coatings or green processing methods built around pyridinium salts. Exploration into functionalized derivatives continues to grow, opening up options for smarter solvents or even unconventional reaction media for enzymatic reactions. As funding moves into green chemistry and renewable energy, the place of versatile, relatively benign salts only grows.

Toxicity Research

Concerns about chemical toxicity never disappear, especially with newish substances. Available data on pyridinium salts, including 1-Butylpyridinium Hydrobromide, show relatively low acute toxicity, particularly compared to some classic laboratory acids or volatile solvents. Chronic toxicity research hasn’t flagged major red flags yet, but long-term aquatic and ecological impact studies remain ongoing. Researchers push for more clarity in environmental break-down and bioaccumulation tendencies. The modern take in labs favors rigorous documentation and a “risk but verify” attitude, learning lessons from earlier generations who assumed safety by default.

Future Prospects

Looking ahead, 1-Butylpyridinium Hydrobromide holds a spot in advanced research, from next-gen battery tech to new sustainable chemical processes. As more industries chase regulatory compliance and public pressure to cut dangerous emissions, demand for low-toxicity, reusable process materials grows. Efforts focus on hybridizing pyridinium salts with other emerging materials, from graphene composites to biocompatible plastics. Real promise stands in further tuning the basic molecule — whether by smarter side-chain engineering or advanced synthesis routes that lower environmental impact. As public interest and funding push chemical innovation into greener territory, compounds like 1-Butylpyridinium Hydrobromide will likely see broader, deeper integration into the chemical industry’s response to a more sustainability-minded world.




What are the typical applications of 1-Butylpyridinium Hydrobromide?

Getting to Know 1-Butylpyridinium Hydrobromide

People in labs often work with chemicals that stay out of the headlines but play a huge role behind the scenes. 1-Butylpyridinium hydrobromide is a good example. Chemists recognize it as an ionic liquid salt, but most folks walking down the street have never heard of it. Still, the compound makes a difference in projects that touch plenty of lives, from energy storage to drug manufacturing.

Advancing Battery and Fuel Cell Research

Battery engineers search for safer and longer-lasting electrolytes. 1-Butylpyridinium hydrobromide shows up often in their test tubes. Unlike traditional solvents, this ionic liquid resists catching fire and provides solid conductivity at room temperature. When researchers build prototype batteries and fuel cells, especially the kinds aimed at green tech and electric cars, they use salts like this one to test new designs. Some research even shows improved cycle life and reduced risk of short-circuiting when salts like this replace older options.

Unlocking New Possibilities in Organic Synthesis

Anyone who’s mixed chemicals in a college lab knows lab reactions need the right environment. One mistake and your yield drops. 1-Butylpyridinium hydrobromide can work like a secret weapon in organic chemistry. It acts as a solvent or a “support” for reactions, especially those that don’t go well in water or standard organic solutions. During some syntheses—think making complex drug molecules or specialty flavors—chemists pick this salt to create purer products, boost selectivity, and cut down on waste. The compound helps make reactions cleaner and sometimes lets chemists recycle materials more easily.

Boosting Environmental Cleanup Efforts

Over the past decade, more environmental scientists have started looking for smarter ways to remove heavy metals or toxic dyes from water. 1-Butylpyridinium hydrobromide appears in research on green chemistry and pollution control. Some teams mix it into extraction processes to pull pollutants out of wastewater. It grabs onto harmful ions and can separate out contaminants more efficiently than regular solvents. From my own dabbling with water purification kits in university, I know every new tool helps. Researchers keep searching for salts with less environmental impact and better reusability—this compound stands out for both.

Enhancing Pharmaceutical and Fine Chemical Processing

Drug companies, and those manufacturing specialty chemicals, require processes that save time and avoid by-products. Chemists often compare notes about which solvents reduce work, and 1-butylpyridinium hydrobromide keeps coming up. In cases where precise control over crystal growth or product separation matters, this salt acts as a co-solvent or ionic additive. It can smooth out purification procedures or help stabilize sensitive compounds. I met a pharmaceutical chemist who kept test results showing higher yields and fewer impurities after switching to ionic liquids in key steps.

Potential Solutions and Responsible Use

For all its benefits, responsible handling matters. No chemical stays perfect—each new application raises new safety questions and disposal challenges. The key rests in steady lab testing and comparing environmental impact with older materials. I’ve learned from mentors to check regulatory databases and published research before adopting a new compound. While 1-butylpyridinium hydrobromide unlocks new possibilities, the best results come from teams paying attention to both lab success and real-world safety.

What is the chemical formula and molecular weight of 1-Butylpyridinium Hydrobromide?

Understanding the Compound

1-Butylpyridinium Hydrobromide isn’t a household name, but it plays a quiet role in fields like green chemistry, industrial catalysis, and material sciences. This compound combines an organic cation, 1-butylpyridinium, with the familiar bromide anion. Its chemical formula is C9H14BrN. When folks in laboratories weigh it out, the molecular weight clocks in at 232.12 g/mol. That figure isn’t just a number—it guides how researchers handle the substance, mix it in solutions, and report findings. Getting the formula and molecular weight right means reactions line up, results repeat, and projects move ahead smoothly.

Why Formula and Weight Matter Beyond the Lab

This kind of chemical knowledge has a ripple effect beyond a single beaker or flask. For those scaling up production—maybe developing a safer battery or a greener chemical process—the right numbers keep expensive mistakes at bay. I’ve seen a project stumble because someone trusted an outdated datasheet, added the wrong amount of a similar salt, and sent results off-kilter. Precise chemical formulas matter, not out of mere academic fussiness, but to keep processes safe and efficient.

Applications that Rely on Exact Data

1-Butylpyridinium Hydrobromide finds use in ionic liquids—fluids that stay liquid at room temperature and often replace harsh solvents. These liquids clean up processes that would otherwise churn out toxic byproducts. Some labs use pyridinium salts to dissolve cellulose or carry out chemical reactions with better yields and lower energy use. Accurate molecular weights help researchers keep records straight, especially as they publish new ideas and share them across the globe.

Challenges Facing Industry and Research

One hurdle has to do with chemical purity. Even a tiny amount of contaminant can throw off sensitive experiments. Labs with tight budgets might consider lower-cost suppliers, but differences in quality control can result in inconsistent data later. That's a problem, especially where safety rules or environmental standards rely on numbers that must match up across continents.

Another concern comes up in shipping and handling. Compounds like 1-Butylpyridinium Hydrobromide, because of the bromide ion, can fall under specific shipping regulations. In my experience, a shipment sometimes sits for weeks over paperwork, with teams idling while they wait for approval.

Paths Toward Better Handling and Use

Promoting transparency between chemical suppliers and researchers still makes the biggest difference. Each batch should come with recent, detailed certificates of analysis, showcasing molecular weight confirmation, purity, and contaminant levels. Universities and startups can support open-access databases to compare findings and flag issues quicker.

Within the lab, clear labeling and good records boost safety and trust. Simple tools—a digital scale checked regularly, a clear bench protocol—help avoid the sorts of mix-ups that cost time and money. Standardizing data reporting helps too, especially as AI and machine learning sort through chemical literature looking for trends and opportunities.

In the bigger picture, compounds like 1-Butylpyridinium Hydrobromide show what’s possible as chemistry keeps moving toward greener, more efficient processes. Accurate data, trusted suppliers, and clear methods keep everyone—from bench scientist to end user—moving forward together.

How should 1-Butylpyridinium Hydrobromide be stored?

The Nature of 1-Butylpyridinium Hydrobromide

In the world of specialty chemicals, 1-Butylpyridinium Hydrobromide stands out for its role in modern chemistry. Anyone working with this salt knows that sloppy storage can spell trouble. I’ve learned the hard way that even a minor mistake can wreck purity or trigger spills nobody wants to handle. Respect for the basics saves time, money, and sometimes even health.

Temperature Isn’t Just a Suggestion

Not long ago, I saw what happens when someone left a vial out on a bench near a window. Exposure to direct sunlight baked the contents and moisture sneaked in as the temperature fluctuated. The sample turned clumpy and useless. Simple errors like this remind me why storing at cool room temperature, somewhere between 15‑25°C, beats leaving it exposed. Refrigeration runs a risk of condensation, so a dry, ventilated storage cabinet suits it best.

Moisture: The Silent Saboteur

Some chemical salts soak up water from the air if left uncovered. For 1-Butylpyridinium Hydrobromide, letting moisture build up can degrade the material and threaten experiment outcomes. I always seal containers tightly, throw in fresh silica gel packets, and double-check after every use. This discipline pays off down the road, preventing sticky residues and chemical decomposition.

Material Matters: The Right Container

Plastic jars may seem handy, but glass still takes the prize for reducing the chance of reaction or contamination. My benchwork runs smoother with amber glass bottles, which block light and keep pesky UV rays at bay. Clear labeling, marked with the opening date, avoids mixups and forces me to monitor shelf life. There’s a reason experienced chemists seem almost paranoid about this—it only takes one unmarked jar for headaches to multiply.

Respect for Chemical Compatibility

Some colleagues, eager to save space, stack different salts side by side. This shortcut invites big problems if incompatible substances leak or react. I learned to dedicate cupboard real estate to hydrobromide salts like this one. Segregating acids, bases, and strong oxidizers gives peace of mind. Flammable cabinets belong to solvents, not ionic salts. Good organization kept our lab off the safety officer’s report.

A Clean Routine Prevents Disaster

Sloppy handling starts a domino effect. I mop up spills immediately, use gloves, and never scoop product from the main jar. Instead, I portion what I need into a clean dish. Cross-contamination can go unnoticed until performance drops or a reaction fails. Small habits in the storage process—like keeping workspace surfaces dry and tools reserved—build a safer, more predictable environment.

Don’t Ignore the Label

Every shipment comes with guidance from its supplier. These datasheets stay close at hand for a reason. Discarding old product or registering any sign of color change keeps everything traceable and saves time during audit season. It’s tempting to treat basic storage rules as a chore, yet I’ve seen the opposite—respect for procedures makes both workdays and results stronger.

Is 1-Butylpyridinium Hydrobromide toxic or hazardous?

Toxicity on the Table

Walk into any modern lab, especially one focused on materials science or advanced organic synthesis, and you’ll find ionic liquids mentioned in technical conversations. Among them, 1-Butylpyridinium Hydrobromide occasionally comes up. Lately, there’s a jump in interest over whether this chemical carries toxic baggage or poses any threat at all. In my years working with chemical inventories, that gut-check about safety often defines the difference between healthy caution and reckless assumption.

Handling with Care

First, the truth is that data about 1-Butylpyridinium Hydrobromide’s effects on people and the environment remains thin. Chemical databases list this compound as an ionic liquid, meaning it stays liquid at room temperature, and it pops up in various applications— from battery research to organic catalysis. Unlike your household vinegar or baking soda, ionic liquids command respect, especially since many haven’t undergone complete toxicology studies. A manufacturer’s safety sheet often gives basic hazard warnings: avoid breathing dust or vapors, and keep skin and eyes protected. Anyone regularly mixing, heating, or even just transporting bottles from one lab bench to another ends up relying on those details.

My own experience with similar ionic liquids taught me that skin irritation becomes a real possibility without gloves, and fumes build up in poorly ventilated spaces. There aren’t widespread records of severe incidents with this specific chemical yet, but the broader family of pyridinium salts sometimes causes headaches, drowsiness, and even affects the liver with sustained exposure. A friend who once handled a related compound without eye protection learned the hard way: some chemicals don’t sting right away, but several hours later you can develop redness and burning that lingers for days.

Environmental Concerns

The other question that follows toxicity is what happens if these chemicals escape into the surroundings. Ionic liquids originally drew attention as “green solvents” since they don’t evaporate as easily as regular solvents, supposedly reducing atmospheric pollution. The catch is they don’t just disappear. Recent studies on similar pyridinium salts show they resist breaking down in soil and water. Some parts of Europe have started looking closer at their long-term impact, and I’ve seen researchers pause before pouring anything down the drain— no matter what the older textbooks say.

Risk Comes Down to Precaution

The science usually boils down to what we know and what daily habits we create in the lab. Using chemical fume hoods, storing tightly capped bottles, and suiting up in long sleeves and gloves gets treated less like burdensome bureaucracy and more like common sense. A spill or splash may not send anyone straight to the hospital, but you definitely don’t want to gamble. It’s worth keeping updated safety protocols handy, and every newer grad joining our team gets a copy of the safety sheet for every chemical they’ll handle— no exceptions.

Improving Safety with Knowledge and Transparency

Research keeps moving, and more labs are running long-term studies to fill the gaps in knowledge. Precaution—grounded in experience, data, and a respect for the unknown—remains the best tool for professionals and students handling substances like 1-Butylpyridinium Hydrobromide. No shortcut beats informed caution, clear labeling, and a culture that treats every bottle as worthy of respect until proven otherwise. If you find yourself standing before an unfamiliar chemical, hesitate and look for the facts—your future self will thank you.

What is the purity specification of commercially available 1-Butylpyridinium Hydrobromide?

Pursuing Consistency in the Lab

Consistency keeps experiments running smoothly. The purity of chemicals stands out as a make-or-break factor. Anyone who’s prepared sample after sample understands how a small contaminant tweaks results—sometimes in subtle ways, sometimes throwing off months of work. With 1-butylpyridinium hydrobromide, most lab catalogs and chemical suppliers quote purity in the range of 98% or higher. Quality control checks back this figure using analytical techniques like NMR or HPLC. Purity specifies not just what’s in the bottle, but also, by omission, what’s left out.

A Closer Look at Manufacturer Practices

Lab supply companies across North America and Europe list 1-butylpyridinium hydrobromide at ≥98% purity. Several vendors go further, printing exact values from their quality control batch card. Each lot gets tested for main product, residual pyridine, and water content. Lower-purity batches might turn up, but they usually end up earmarked for industrial use or as intermediates, not for direct lab work. Laboratories demand high-confidence numbers, since small impurities like residual starting materials, water, or side-products dilute certainty.

Harboring Doubts: Why This Purity Matters

Anything below about 98% purity brings uncertainty into reactions. I’ve run syntheses where a trusted supplier provided a bottle labeled “97.5%.” Side-reactions showed up, yields dropped, and repeatability disappeared. In sensitive setups—think catalysis or electrochemistry—a half-percent of an unexpected ion might mean wild results. When troubleshooting, finding the source of that inconsistency eats up valuable time, patience, and budget.

How Purity Gets Specified and Reported

SDS documents offer specifics—purity usually appears either under identification or in the composition section. Most technical data sheets from reliable producers detail physical constants like melting point, solubility, and sometimes elemental analysis. They also disclose impurity thresholds for water or organic starting materials. For 1-butylpyridinium hydrobromide, water is often limited to below 1%—and the best batches get down nearer to 0.1%. Users sometimes double-check these numbers with a test NMR or by Karl Fischer titration, especially if a critical application depends on extremely tight purity windows.

Sorting Out Solutions: How Researchers Find Trusted Sources

No one likes surprises; plenty of researchers look for suppliers that offer certificates of analysis (CoAs) with each bottle. CoAs that include both purity via NMR and a breakdown of common impurities help reassure buyers. A few times, I’ve reached out to vendors for extra details before rolling the dice on a new batch. Reliable companies respond with the real numbers and explain their testing. If the supplier seems cagey, that’s all the reason needed to keep looking.

Gaps in the Market: Raising the Bar for the Supply Chain

Sometimes labs accept a compromise on grade just to meet budget targets. Price differences between 98% and 99% grades can be significant over a year, especially for bulk buyers. Yet, higher research standards keep pushing suppliers to improve. More detailed reporting, including specifics about unknown impurities, goes a long way to building trust. Ultimately, pushing for tighter specification and transparency gives everyone upstream and downstream a better shot at solid research outcomes.

1-Butylpyridinium Hydrobromide
1-Butylpyridinium Hydrobromide
1-Butylpyridinium Hydrobromide
Names
Preferred IUPAC name 1-butylpyridin-1-ium bromide
Other names 1-Butylpyridinium bromide
1-Butylpyridinium bromide (1:1)
N-Butylpyridinium bromide
Pronunciation /ˈwʌn-ˈbjuːtɪl-pɪˈrɪdɪniəm ˌhaɪdrəʊˈbrəʊmaɪd/
Identifiers
CAS Number 14332-28-6
Beilstein Reference 3858735
ChEBI CHEBI:82463
ChEMBL CHEMBL3306523
ChemSpider 113698
DrugBank DB04260
ECHA InfoCard 100.134.163
EC Number 613-603-0
Gmelin Reference 107748
KEGG C120372
MeSH D000071239
PubChem CID 2734163
RTECS number NL9820000
UNII C6MRR4H79T
UN number UN2811
CompTox Dashboard (EPA) `DTXSID1020390`
Properties
Chemical formula C9H14BrN
Molar mass 208.13 g/mol
Appearance White to off-white solid
Odor Odorless
Density 1.18 g/cm3
Solubility in water soluble
log P -1.2
Vapor pressure Negligible
Acidity (pKa) -0.3
Basicity (pKb) -3.15
Magnetic susceptibility (χ) -63.7×10⁻⁶ cm³/mol
Refractive index (nD) 1.568
Viscosity 240 cP (25 °C)
Dipole moment 8.58 D
Thermochemistry
Std molar entropy (S⦵298) 276.9 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) -850.9 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -5742.6 kJ/mol
Hazards
Main hazards Harmful if swallowed. Causes skin and eye irritation. May cause respiratory irritation.
GHS labelling GHS07
Pictograms GHS07
Signal word Warning
Hazard statements H302: Harmful if swallowed.
Precautionary statements P264, P270, P273, P280, P301+P312, P305+P351+P338, P330, P337+P313, P501
NFPA 704 (fire diamond) 1-1-0-W
Flash point > 230 °C
Lethal dose or concentration LD50 oral rat 640 mg/kg
LD50 (median dose) LD50: Rat oral >2000 mg/kg
NIOSH WS3260000
PEL (Permissible) Not established
REL (Recommended) 10 mg/m3
IDLH (Immediate danger) Not established
Related compounds
Related compounds 1-Butylpyridinium chloride
1-Butylpyridinium tetrafluoroborate
1-Butylpyridinium hexafluorophosphate
1-Butylpyridinium bromide
1-Methylpyridinium hydrobromide
1-Ethylpyridinium hydrobromide