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Sodium Dodecyl Sulfonate (SDS)？

Sodium Dodecyl Sulfonate (SDS) 是一种化学品，CAS 登记号为 2386-53-0。分子式: C12H25NaO3S. 摩尔质量: 272.38 g/mol. IUPAC: sodium dodecane-1-sulfonate.

Sodium Dodecyl Sulfonate (SDS) 的 CAS 号是多少？

Sodium Dodecyl Sulfonate (SDS) 的 CAS 号为 2386-53-0——化学文摘社 (CAS) 的唯一标识符。

Sodium Dodecyl Sulfonate (SDS) 的分子式是什么？

分子式: C12H25NaO3S. 摩尔质量: 272.38 g/mol. PSA: 65.6 Å².

在哪里可以购买Sodium Dodecyl Sulfonate (SDS)？

Sodium Dodecyl Sulfonate (SDS) 在我们的商店有售。查看产品：https://epchems.online/products/sodium-dodecyl-sulfonate/

Sodium Dodecyl Sulfonate (SDS) 的化学数据来自哪里？

Sodium Dodecyl Sulfonate (SDS) 的化学数据来自权威来源：PubChem (NIH), ChEMBL (EBI)。 PubChem CID: 23665726. 符合 CLP 法规（EC 1272/2008），依据 CC-BY 4.0 许可提供。

Sodium Dodecyl Sulfonate (SDS)

Sodium laurylsulfonate

CAS 2386-53-0 · C₁₂H₂₅NaO₃S · MW 272.38 g/mol

关于 Sodium Dodecyl Sulfonate (SDS)

Sodium Dodecyl Sulfonate (SDS) 是一种化学品，登记号为 CAS 2386-53-0，分子式为 C₁₂H₂₅NaO₃S，摩尔质量为 272.38 g/mol。

该分子包含 42 个原子，通过 41 个化学键连接。该化合物的完整系统 IUPAC 名称为 sodium dodecane-1-sulfonate。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，极性表面积 PSA = 65.6 Å²，0 个氢键供体和 3 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	C₁₂H₂₅NaO₃S
Masa molowa	272.38 g/mol
IUPAC	sodium dodecane-1-sulfonate
SMILES	`CCCCCCCCCCCCS(=O)(=O)[O-].[Na+]`
InChIKey	`DAJSVUQLFFJUSX-UHFFFAOYSA-M`
logP (XLogP3)	—
PSA	65.6 Å²
HBD / HBA	0 / 3
PubChem CID	CID 23665726 ↗

科学文献

Literatura naukowa

1 artykułów · 0 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

Dodecyl Sodium Sulfonate

$ 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

2386-53-0 · Sodium 1-dodecanesulfonate · Sodium laurylsulfonate · 1-Dodecanesulfonic acid, sodium salt · Sodium dodecane-1-sulphonate · Laurylsulfonic Acid Sodium Salt · 4GY1KJW8SI · sodium dodecanesulfonate · 1-Dodecanesulfonic acid, sodium salt (1:1) · sodium n-dodecylsulfonate · EINECS 219-200-6 · SODIUM DODECYLSULFONATE · DODECYL SODIUM SULFONATE · DODECYLSULFONIC ACID SALT · DODECANESULFONIC ACID, SODIUM SALT

数据来源

📊 PubChem CID 23665726 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

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