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.

乙醇是一种化学品，CAS 登记号为 64-17-5。分子式: C2H6O. 摩尔质量: 46.07 g/mol.

乙醇的 CAS 号是多少？

乙醇的 CAS 号为 64-17-5——化学文摘社 (CAS) 的唯一标识符。

乙醇的分子式是什么？

分子式: C2H6O. 摩尔质量: 46.07 g/mol. logP (XLogP3): -0.31.

乙醇有哪些 GHS 危害？

根据 GHS 分类，乙醇须标注以下危险说明： H225 (高度易燃液体和蒸气).

在哪里可以购买乙醇？

乙醇在我们的商店有售。查看产品：https://epchems.online/products/ethanol-64-17-5/

乙醇的化学数据来自哪里？

乙醇的化学数据来自权威来源：PubChem (NIH)。 PubChem CID: 702. 符合 CLP 法规（EC 1272/2008），依据 CC-BY 4.0 许可提供。

乙醇

Etanol

CAS 64-17-5 · C₂H₆O · MW 46.07 g/mol

关于乙醇

乙醇是一种化学品，登记号为 CAS 64-17-5，分子式为 C₂H₆O，摩尔质量为 46.07 g/mol。

该分子包含 9 个原子，通过 8 个化学键连接。上方的交互式 3D 模型可查看原子的空间排列——您可以用鼠标旋转、用滚轮缩放，并在骨架 / 球棍 (Ball & Stick) / 空间填充 (Space Fill) 显示模式之间切换。

在理化性质方面，分配系数 logP = -0.31 (负值，亲水性化合物)。这些参数对于评估生物利用度以及与生物分子的相互作用至关重要。

该化合物的化学数据来自 PubChem（NIH NLM NCBI），全球最大的化学数据库之一。所有信息均自动更新，并附有符合 CLP 法规（EC 1272/2008）的 GHS 危险说明翻译。上方的小部件可用于教育、研究和商业用途。

理化性质

Wzór sumaryczny	C₂H₆O
Masa molowa	46.07 g/mol
IUPAC	—
SMILES	`CCO`
InChIKey	—
logP (XLogP3)	-0.31
PSA	—
HBD / HBA	—
PubChem CID	CID 702 ↗

GHS 安全

Sygnał: Niebezpieczeństwo

GHS02

H225 — Wysoce łatwopalna ciecz i pary

科学文献

Literatura naukowa

13 artykułów · 7 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (13 artykułów)

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

Toxicology and carcinogensis. Studies of urethane, ethanol, and urethane/ethanol (urethane, CAS No. 51-79-6; ethanol, CAS No. 64-17-5) in B6C3F1 mice (drinking water studies).

(2004)

Cytowania: 5$ PaywallPubMed ↗

🔓

GLP-1 and Alcohol-Related Behaviors: Insights From Preclinical Studies.

Jerlhag E (2026) · Biological psychiatry

ReviewOpen AccessDOI ↗PubMed ↗PDF ↗

🔓

Epigenetic pathways linking prenatal alcohol exposure to fetal alcohol spectrum disorder.

Pender SC, Beryoza M, Khoodoruth WNC et al. (2026) · Neuroscience and biobehavioral reviews

ReviewOpen AccessDOI ↗PubMed ↗PDF ↗

🔓

Next-generation brewing yeasts for non-alcoholic beers.

Cibin I, Spaepen S, Steensels J et al. (2026) · Current opinion in biotechnology

ReviewOpen AccessDOI ↗PubMed ↗PDF ↗

Krag A, Åberg F, Mellinger J et al. (2026) · JAMA

Review$ PaywallDOI ↗PubMed ↗

Linking prenatal alcohol-induced transcriptomic alterations to hippocampal-associated structural and behavioral deficits.

Dorman TA, Boschen KE (2026) · Physiology & behavior

Review$ PaywallDOI ↗PubMed ↗

🔓

A paradoxical impact of alcohol on sleep-memory coupling.

Chouhan NS, Mitra W, Singh K et al. (2026) · Current biology : CB

Open AccessDOI ↗PubMed ↗PDF ↗

🔓

Alcohol abstinence precipitates alcohol seeking and aversion-resistant intake in association with increased BNST activity.

Doyle MA, Yoon HJ, Altemus ME et al. (2026) · Molecular psychiatry

Open AccessDOI ↗PubMed ↗PDF ↗

🔓

Finerenone mitigates acute alcoholic myocardial injury by modulating inflammatory signaling, oxidative stress, and mitochondrial function.

Liu CH, Chu TH, Yang SM et al. (2026) · Molecular medicine (Cambridge, Mass.)

Open AccessDOI ↗PubMed ↗PDF ↗

🔓

Translational evidence for increased central amygdala IL-6 activity in alcohol dependence.

St Onge CM, Erikson C, Cruz B et al. (2026) · Journal of neuroinflammation

Open AccessDOI ↗PubMed ↗PDF ↗

Lactobacillus rhamnosus JM023 Postbiotic-Loaded Sodium Alginate Hydrogel for Alleviating Alcoholic Gastric Ulcers.

Li Y, Jia H, Zhao T et al. (2026) · Advanced healthcare materials

$ PaywallDOI ↗PubMed ↗

Alcohol-Induced Metabolic Stress Sensed by m6A-Modified ChREBP Drives Immune Evasion in Esophageal Carcinogenesis.

Ma J, Yue X, Wu Y et al. (2026) · Cancer research

$ PaywallDOI ↗PubMed ↗

Traditional herbal medicine Hyangsapyeongwi-san inhibits alcohol-induced gastric injury in mice by regulating NLRP3 inflammasome signaling.

Huh E, Ju IG, Kim SH et al. (2026) · Journal of ethnopharmacology

$ PaywallDOI ↗PubMed ↗

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

同义词

Alcohol · Ethyl alcohol

数据来源

📊 PubChem CID 702 — NIH
🔬 NIST WebBook — spektroskopia
💊 ChEMBL — bioaktywność

在商店购买

Ethanol →