Does BMA mean n-butyl methacrylate or isobutyl methacrylate?

In most commercial usage the bare abbreviation means the normal isomer, n-butyl methacrylate, CAS 97-88-1. The branched isomer, isobutyl methacrylate, is a different substance with its own identifiers and a different contribution to copolymer hardness, and the tertiary isomer is different again. Because all three are abbreviated loosely in day-to-day correspondence, an order written as BMA alone is ambiguous. Write the full chemical name and the CAS number on every enquiry, purchase order and goods-inwards record.

Why must the monomer not be blanketed with pure nitrogen?

Because the stabiliser used in commercial methacrylate monomers requires dissolved oxygen to function. It intercepts radicals by a mechanism that consumes oxygen, so a drum stripped of oxygen contains an inhibitor that is chemically present and functionally absent. The correct headspace is air, or air diluted with nitrogen to a specified oxygen content, never an inert blanket. This is one of the very few cases in a chemical store where displacing oxygen makes a material more dangerous rather than less, and it catches people whose instinct is trained on flammable solvents.

How should inhibitor content be read on a certificate?

As a starting condition rather than a permanent property. The certificate reports the inhibitor level at release; that level falls in storage as the stabiliser does its job, and it falls faster in warm conditions, in light and in the presence of contamination. A long-stored drum can meet its original certificate on every other line while having very little inhibitor left. Where storage has been long or uncertain, retest the inhibitor level before charging a reactor rather than relying on the release figure.

What is popcorn polymerisation and why does it matter here?

It is a self-propagating, expanding polymer growth that forms in dead legs, vapour spaces, valve bonnets and residues where inhibitor cannot reach. Once seeded it continues under conditions that would not start a normal polymerisation, and it grows mechanically enough to jam valves and distort equipment. The controls are housekeeping controls: no unswept dead legs, no long-standing residues, no lines left full between campaigns, and clean vessels before refilling. It is not a reason to avoid methacrylate monomers, but it is a reason to design the pipework as if the monomer were reactive, because it is.

How does the butyl ester change a copolymer compared with the methyl one?

The four-carbon ester side chain is flexible and bulky, so it loosens chain packing and lowers the temperature at which the polymer softens. Against the methyl ester it gives a softer, more flexible and more extensible polymer, better adhesion and easier film formation, at the cost of hardness and block resistance. Against the corresponding acrylate it gives a harder polymer with the weathering advantage of the methacrylate backbone. Formulators use it as the soft component of an all-methacrylate system, which keeps the durability while tuning flexibility.

Acetic acid is a chemical compound registered under CAS number 64-19-7. Molecular formula: C₂H₄O₂. Molar mass: 60.05 g/mol.

What is the CAS number of Acetic acid?

The CAS number of Acetic acid is 64-19-7 — a unique Chemical Abstracts Service (CAS) identifier.

What is the molecular formula of Acetic acid?

Molecular formula: C₂H₄O₂. Molar mass: 60.05 g/mol. logP (XLogP3): -0.17.

What are the GHS hazards of Acetic acid?

Under the GHS classification, Acetic acid must be labelled with the following hazard statements: H226 (Flammable liquid and vapour), H314 (Causes severe skin burns and eye damage).

Where can I buy Acetic acid?

Acetic acid is available in our shop. View the product: https://epchems.online/products/acetic-acid/

Where does the chemical data for Acetic acid come from?

Chemical data for Acetic acid comes from authoritative sources: PubChem (NIH). PubChem CID: 176. Compliant with the CLP Regulation (EC 1272/2008), available under the CC-BY 4.0 licence.

Acetic acid

Kwas octowy

CAS 64-19-7 · C₂H₄O₂ · MW 60.05 g/mol

About Acetic acid

Acetic acid is a chemical compound registered under number CAS 64-19-7, with the molecular formula C₂H₄O₂, and a molar mass of 60.05 g/mol.

The molecule contains 8 atoms connected by 7 chemical bonds. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, the partition coefficient logP = -0.17 (negative value, a hydrophilic compound). These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The widget above may be used for educational, research and commercial purposes.

Physicochemical properties

Wzór sumaryczny	C₂H₄O₂
Masa molowa	60.05 g/mol
IUPAC	—
SMILES	`CC(=O)O`
InChIKey	—
logP (XLogP3)	-0.17
PSA	—
HBD / HBA	—
PubChem CID	CID 176 ↗

GHS safety

Sygnał: Niebezpieczeństwo

GHS02

GHS05

H226 — Łatwopalna ciecz i pary

H314 — Powoduje poważne oparzenia skóry oraz uszkodzenia oczu

Scientific literature

Literatura naukowa

9 artykułów · 5 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (9 artykułów)

Wysokość słupka = liczba artykułów w roku. Hover dla szczegółów.

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RIFM fragrance ingredient safety assessment, acetic acid, CAS Registry Number 64-19-7.

et al. (2019)

Open AccessDOI ↗PubMed ↗PDF ↗

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Lactobacillus rhamnosus B16 regulates lipid metabolism homeostasis by producing acetic acid.

Che Z, Huang J, Wen S et al. (2025) · Journal of translational medicine

Open AccessDOI ↗PubMed ↗PDF ↗

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Cobalt-Doped Carbon Quantum Dots Work Synergistically with Weak Acetic Acid to Eliminate Antimicrobial-Resistant Bacterial Infections.

Truskewycz A, Choi B, Pedersen L et al. (2025) · ACS nano

Open AccessDOI ↗PubMed ↗PDF ↗

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Biotin/sulfasalazine combination therapy alleviates acetic acid-induced ulcerative colitis in rats via modulation of S1PR1/NF-κB/IL-23/STAT3/COX-2 axis.

Helmy SA, Samaha MM, Abd El Salam ASG et al. (2025) · Scientific reports

Open AccessDOI ↗PubMed ↗PDF ↗

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Gut microbiota remodelling alleviates elderly sepsis by microbiota-derived acetic acid via FFAR2/NLRP3 pathway.

Yu G, Xie W, Xiang J et al. (2025) · European journal of pharmacology

Open AccessDOI ↗PubMed ↗PDF ↗

Dietary fiber pectin supplement attenuates atherosclerosis through promoting Akkermansia-related acetic acid metabolism.

Mao YQ, Song SY, Xu Q et al. (2025) · Phytomedicine : international journal of phytotherapy and phytopharmacology

$ PaywallDOI ↗PubMed ↗

Adenosine A(2A) receptor agonist polydeoxyribonucleotide ameliorates acetic acid-induced ulcerative colitis via modulating PI3K/Akt/VEGF signaling pathway.

Lee J, Ko IG, Lee M et al. (2025) · European journal of pharmacology

$ PaywallDOI ↗PubMed ↗

Gut Acetic Acid Alleviates Cognitive Impairment by Inhibiting Tau Hyperphosphorylation via Regulating FFAR3/Erk Pathway in Chronic Cerebral Ischemia Mice.

Liu Y, Zhang X, Yu T et al. (2025) · Molecular neurobiology

$ PaywallDOI ↗PubMed ↗

Acetic acid for industrial use.

$ PaywallDOI ↗PDF ↗

Dane z PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary wygenerowane przez Semantic Scholar TLDR. Artykuły z ikoną wymagają płatnego dostępu.

Synonyms

Acetic acid · Ethanoic acid

Data sources

📊 PubChem CID 176 — NIH
🔬 NIST WebBook — spektroskopia
💊 ChEMBL — bioaktywność

Buy in the shop

Acetic acid →

Related molecules

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