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.

什么是Isopropyl acetate？

Isopropyl acetate 是一种化学品，CAS 登记号为 108-21-4。分子式: C5H10O2. 摩尔质量: 102.13 g/mol. IUPAC: propan-2-yl acetate.

Isopropyl acetate 的 CAS 号是多少？

Isopropyl acetate 的 CAS 号为 108-21-4——化学文摘社 (CAS) 的唯一标识符。

Isopropyl acetate 的分子式是什么？

分子式: C5H10O2. 摩尔质量: 102.13 g/mol. logP (XLogP3): 0.9. PSA: 26.3 Å².

Isopropyl acetate 有哪些 GHS 危害？

根据 GHS 分类，Isopropyl acetate 须标注以下危险说明： H225 (高度易燃液体和蒸气), H336 (可引起昏睡或眩晕), H319 (造成严重眼刺激), EUH066 (反复接触可能引起皮肤干燥或皲裂).

在哪里可以购买Isopropyl acetate？

Isopropyl acetate 在我们的商店有售。查看产品：https://epchems.online/products/isopropyl-acetate/

Isopropyl acetate 的化学数据来自哪里？

Isopropyl acetate 的化学数据来自权威来源：PubChem (NIH)。 PubChem CID: 7915. 符合 CLP 法规（EC 1272/2008），依据 CC-BY 4.0 许可提供。

Isopropyl acetate

CAS 108-21-4 · C₅H₁₀O₂ · MW 102.13 g/mol

关于 Isopropyl acetate

Isopropyl acetate 是一种化学品，登记号为 CAS 108-21-4，分子式为 C₅H₁₀O₂，摩尔质量为 102.13 g/mol。

该分子包含 17 个原子，通过 16 个化学键连接。该化合物的完整系统 IUPAC 名称为 propan-2-yl acetate。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 = 0.9 (正值，亲脂性化合物)，极性表面积 PSA = 26.3 Å²，0 个氢键供体和 2 个氢键受体。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	C₅H₁₀O₂
Masa molowa	102.13 g/mol
IUPAC	propan-2-yl acetate
SMILES	`CC(C)OC(=O)C`
InChIKey	`JMMWKPVZQRWMSS-UHFFFAOYSA-N`
logP (XLogP3)	0.9
PSA	26.3 Å²
HBD / HBA	0 / 2
PubChem CID	CID 7915 ↗

GHS 安全

Sygnał: Niebezpieczeństwo

GHS02

GHS07

H225 — Wysoce łatwopalna ciecz i pary

H336 — Może wywoływać uczucie senności lub zawroty głowy

H319 — Działa drażniąco na oczy

EUH066 — Powtarzające się narażenie może powodować wysuszanie lub pękanie skóry

科学文献

Literatura naukowa

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

📈 Timeline publikacji (5 artykułów)

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

Tetrazole activity against Candida albicans. The role of KEX2 mutations in the sensitivity to (±)-1-[5-(2-chlorophenyl)-2H-tetrazol-2-yl]propan-2-yl acetate

Małgorzata Bondaryk, Edyta Łukowska-Chojnacka, Monika Staniszewska (2015) · Bioorganic & Medicinal Chemistry Letters

Cytowania: 20$ PaywallDOI ↗

RIFM fragrance ingredient safety assessment, isopropyl acetate, CAS Registry Number 108-21-4.

et al. (2019)

Cytowania: 2$ PaywallDOI ↗PubMed ↗

Update to RIFM fragrance ingredient safety assessment, isopropyl acetate, CAS registry number 108-21-4.

et al. (2024)

$ PaywallDOI ↗PubMed ↗

🔓

1-(2-Methyl-5-nitro-1H-imidazol-1-yl)propan-2-yl acetate

Hafiz Abdullah Shahid, Ejaz Hussain, Sajid Jahangir et al. (2014) · Acta Crystallographica Section E

Cytowania: 2Open AccessDOI ↗PDF ↗

Lipase-mediated kinetic resolution of (RS)-1-bromo-3-[4-(2-methoxy-ethyl)-phenoxy]-propan-2-ol to (R)-1-bromo-3-(4-(2-methoxyethyl) phenoxy) propan-2-yl acetate

Abhishek Kaler, Vachan Singh Meena, Manpreet Singh et al. (2011) · Tetrahedron Letters

Cytowania: 4$ PaywallDOI ↗

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

ISOPROPYL ACETATE · 108-21-4 · propan-2-yl acetate · 2-Propyl acetate · 2-Acetoxypropane · Acetic acid, 1-methylethyl ester · Isopropyl ethanoate · Isopropylacetat · Paracetat · Isopropylacetaat · Acetic Acid, isopropyl ester · 1-Methylethyl acetate · Acetate d'isopropyle · Isopropylester kyseliny octove · Isopropile (acetato di)

数据来源

📊 PubChem CID 7915 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

在商店购买

Isopropyl acetate →