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.

What is Epichlorohydrin?

Epichlorohydrin is a chemical compound registered under CAS number 106-89-8. Molecular formula: C3H5ClO. Molar mass: 92.52 g/mol. IUPAC: 2-(chloromethyl)oxirane.

What is the CAS number of Epichlorohydrin?

The CAS number of Epichlorohydrin is 106-89-8 — a unique Chemical Abstracts Service (CAS) identifier.

What is the molecular formula of Epichlorohydrin?

Molecular formula: C3H5ClO. Molar mass: 92.52 g/mol. logP (XLogP3): 0.5. PSA: 12.5 Å².

What are the GHS hazards of Epichlorohydrin?

Under the GHS classification, Epichlorohydrin must be labelled with the following hazard statements: H226 (Flammable liquid and vapour), H350 (May cause cancer), H331 (Toxic if inhaled), H311 (Toxic in contact with skin), H301 (Toxic if swallowed).

Where can I buy Epichlorohydrin?

Epichlorohydrin is available in our shop. View the product: https://epchems.online/products/epichlorohydrin/

Where does the chemical data for Epichlorohydrin come from?

Chemical data for Epichlorohydrin comes from authoritative sources: PubChem (NIH), ChEMBL (EBI). PubChem CID: 7835. Compliant with the CLP Regulation (EC 1272/2008), available under the CC-BY 4.0 licence.

Epichlorohydrin

CAS 106-89-8 · C₃H₅ClO · MW 92.52 g/mol

About Epichlorohydrin

Epichlorohydrin is a chemical compound registered under number CAS 106-89-8, with the molecular formula C₃H₅ClO, and a molar mass of 92.52 g/mol.

The molecule contains 10 atoms connected by 10 chemical bonds. The full systematic IUPAC name of this compound is 2-(chloromethyl)oxirane. 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 = 0.5 (positive value, a lipophilic compound), polar surface area PSA = 12.5 Å², 0 donors and 1 hydrogen bond acceptors. 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	C₃H₅ClO
Masa molowa	92.52 g/mol
IUPAC	2-(chloromethyl)oxirane
SMILES	`C1C(O1)CCl`
InChIKey	`BRLQWZUYTZBJKN-UHFFFAOYSA-N`
logP (XLogP3)	0.5
PSA	12.5 Å²
HBD / HBA	0 / 1
PubChem CID	CID 7835 ↗

GHS safety

Sygnał: Niebezpieczeństwo

GHS02

GHS05

GHS06

GHS07

GHS08

H226 — Łatwopalna ciecz i pary

H350 — Może powodować raka

H331 — Działa toksycznie w następstwie wdychania

H311 — Działa toksycznie w kontakcie ze skórą

H301 — Działa toksycznie po połknięciu

H314 — Powoduje poważne oparzenia skóry oraz uszkodzenia oczu

H317 — Może powodować reakcję alergiczną skóry

Scientific literature

Literatura naukowa

18 artykułów · 1 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (18 artykułów)

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

Via 2-(Chloromethyl)oxirane

C. J. Forsyth, T. J. Murray (2008) · Ethers

$ PaywallDOI ↗

2-(Chloromethyl)oxirane-Related Systems

E. Block (2008) · Sulfur, Selenium, and Tellurium

$ PaywallDOI ↗

Refractive index of 2-(chloromethyl)oxirane

Christian Wohlfarth (2017) · Optical Constants

$ PaywallDOI ↗

Molecular beam Fourier transform microwave spectra of (chloromethyl)cyclopropane and (chloromethyl)oxirane

N. Heineking, J.-U. Grabow, I. Merke (2002) · Journal of Molecular Structure

Cytowania: 11$ PaywallDOI ↗

🔓

Carboxylic acids as proton-containing nucleophiles in the reaction with (chloromethyl)oxirane

(2019) · Voprosy Khimii i Khimicheskoi Tekhnologii

Open AccessDOI ↗PDF ↗

Epichlorohydrin.

(1999) · IARC monographs on the evaluation of carcinogenic risks to humans

Review$ PaywallPubMed ↗

Epichlorohydrin.

National Toxicology Program (2011) · Report on carcinogens : carcinogen profiles

$ PaywallPubMed ↗

Epichlorohydrin.

National Toxicology Program (2002) · Report on carcinogens : carcinogen profiles

$ PaywallPubMed ↗

Epichlorohydrin.

(2004) · Report on carcinogens : carcinogen profiles

$ PaywallPubMed ↗

What are the manifestations of ocular exposure to epichlorohydrin?

Zhang Y, Li M, Le Q et al. (2014) · Journal of occupational and environmental medicine

$ PaywallDOI ↗PubMed ↗

Epoxy-functionalized polyethyleneimine modified epichlorohydrin-cross-linked cellulose aerogel as adsorbents for carbon dioxide capture.

Chen X, Lin J, Wang H et al. (2023) · Carbohydrate polymers

$ PaywallDOI ↗PubMed ↗

Formaldehyde, Polymer with (Chloromethyl)Oxirane and Phenol

(2007) · Hawley's Condensed Chemical Dictionary

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Polypropylene Glycol, (Chloromethyl)Oxirane Polymer 9072‐62‐2

(2004) · Sax's Dangerous Properties of Industrial Materials

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Polypropylene Glycol, (Chloromethyl)Oxirane Polymer 9072‐62‐2

(2012) · Sax's Dangerous Properties of Industrial Materials

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Formaldehyde, Polymer with (Chloromethyl)Oxirane and Phenol 9003‐36‐5

(2004) · Sax's Dangerous Properties of Industrial Materials

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Formaldehyde, Polymer with (Chloromethyl)Oxirane and Phenol 9003‐36‐5

(2012) · Sax's Dangerous Properties of Industrial Materials

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<i> <scp>n</scp> </i> ‐(3‐aminopropyl)‐1,3‐propanediamine Polymer With (chloromethyl)oxirane

(2007) · Hawley's Condensed Chemical Dictionary

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(Chloromethyl)oxirane <undefined optical isomer> C3H5ClO + C3H6O2 (Hydroxymethyl)oxirane

I. Wichterle, J. Linek, Z. Wagner et al. · Landolt-Börnstein - Group IV Physical Chemistry

$ PaywallDOI ↗

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

Synonyms

EPICHLOROHYDRIN · 2-(Chloromethyl)oxirane · 106-89-8 · Epichlorhydrin · 1-Chloro-2,3-epoxypropane · Glycidyl chloride · Epichlorhydrine · Chloromethyloxirane · Oxirane, (chloromethyl)- · Chloropropylene oxide · 2,3-Epoxypropyl chloride · Epichloorhydrine · (CHLOROMETHYL)OXIRANE · 1,2-Epoxy-3-chloropropane · 3-Chloro-1,2-epoxypropane

Data sources

📊 PubChem CID 7835 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Buy in the shop

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