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Diethyl phthalate (DEP)？

Diethyl phthalate (DEP) 是一种化学品，CAS 登记号为 84-66-2。分子式: C12H14O4. 摩尔质量: 222.24 g/mol. IUPAC: diethyl benzene-1,2-dicarboxylate.

Diethyl phthalate (DEP) 的 CAS 号是多少？

Diethyl phthalate (DEP) 的 CAS 号为 84-66-2——化学文摘社 (CAS) 的唯一标识符。

Diethyl phthalate (DEP) 的分子式是什么？

分子式: C12H14O4. 摩尔质量: 222.24 g/mol. logP (XLogP3): 2.5. PSA: 52.6 Å².

Diethyl phthalate (DEP) 有哪些 GHS 危害？

根据 GHS 分类，Diethyl phthalate (DEP) 须标注以下危险说明： H401 (对水生生物有毒), H315 (造成皮肤刺激), H317 (可能导致皮肤过敏反应), H320 (造成眼刺激), H335 (可引起呼吸道刺激).

在哪里可以购买Diethyl phthalate (DEP)？

Diethyl phthalate (DEP) 在我们的商店有售。查看产品：https://epchems.online/products/diethyl-phthalate/

Diethyl phthalate (DEP) 的化学数据来自哪里？

Diethyl phthalate (DEP) 的化学数据来自权威来源：PubChem (NIH)。 PubChem CID: 6781. 符合 CLP 法规（EC 1272/2008），依据 CC-BY 4.0 许可提供。

Diethyl phthalate (DEP)

Diethyl Phthalate

CAS 84-66-2 · C₁₂H₁₄O₄ · MW 222.24 g/mol

关于 Diethyl phthalate (DEP)

Diethyl phthalate (DEP) 是一种化学品，登记号为 CAS 84-66-2，分子式为 C₁₂H₁₄O₄，摩尔质量为 222.24 g/mol。

该分子包含 30 个原子，通过 30 个化学键连接。该化合物的完整系统 IUPAC 名称为 diethyl benzene-1,2-dicarboxylate。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 = 2.5 (正值，亲脂性化合物)，极性表面积 PSA = 52.6 Å²，0 个氢键供体和 4 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	C₁₂H₁₄O₄
Masa molowa	222.24 g/mol
IUPAC	diethyl benzene-1,2-dicarboxylate
SMILES	`CCOC(=O)C1=CC=CC=C1C(=O)OCC`
InChIKey	`FLKPEMZONWLCSK-UHFFFAOYSA-N`
logP (XLogP3)	2.5
PSA	52.6 Å²
HBD / HBA	0 / 4
PubChem CID	CID 6781 ↗

GHS 安全

Sygnał: Uwaga

GHS07

H401 — Działa toksycznie na organizmy wodne

H315 — Działa drażniąco na skórę

H317 — Może powodować reakcję alergiczną skóry

H320 — H320

H335 — Może powodować podrażnienie dróg oddechowych

H336 — Może wywoływać uczucie senności lub zawroty głowy

科学文献

Literatura naukowa

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

📈 Timeline publikacji (20 artykułów)

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

Diethyl phthalate : CAS#: 84-66-2 [Spanish]

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NTP Toxicology and Carcinogenesis Studies of Diethylphthalate (CAS No. 84-66-2) in F344/N Rats and B6C3F1 Mice (Dermal Studies) with Dermal Initiation/ Promotion Study of Diethylphthalate and Dimethylphthalate (CAS No. 131-11-3) in Male Swiss (CD-1(R)) Mice.

(1995)

Cytowania: 6$ PaywallPubMed ↗

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Exposure to diethyl phthalates impairs ovarian reserve and oocyte maturation in female mice.

Chen J, Chen L, Chen Y et al. (2025) · Ecotoxicology and environmental safety

Open AccessDOI ↗PubMed ↗PDF ↗

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Unraveling diethyl phthalate-induced prostate carcinogenesis: core targets revealed by integrated network toxicology, machine learning, and structural validation.

Liu H, Jiang J, Tan Y et al. (2025) · Human genomics

Open AccessDOI ↗PubMed ↗PDF ↗

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A physiologically based pharmacokinetic model of diethyl phthalates in humans.

Chen S, Shi Z, Zhang Q (2024) · Environmental pollution (Barking, Essex : 1987)

Open AccessDOI ↗PubMed ↗PDF ↗

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Diethyl 2,6-Dimethyl,4-(1,1,1-trichloromethyl)-1,4-dihydropyridine-3,5-dicarboxylate

Fatma Aydin, Recep Ozen (2006) · Molbank

Open AccessDOI ↗PDF ↗

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Bis[diethyl(hydroxy)ammonium] benzene-1,4-dicarboxylate

Hai-Bin Wang, De-Ming Xie, Hai-Xiang Chen et al. (2010) · International Union of Crystallography

Open AccessDOI ↗PDF ↗

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Mixtures of Diethyl Sulfoxide and Methanol: Structure and Thermodynamics

Vitaly V. Chaban, Nadezhda A. Andreeva (2021) · arXiv (2112.11531v1)

Open AccessPDF ↗

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Diethyl Sulfoxide as a Novel Neutral Ligand in the Platinum Complex Anion

Vitaly V. Chaban (2021) · arXiv (2111.03292v1)

Open AccessPDF ↗

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Slip and friction mechanisms at polymer semi-dilute solutions / solid interfaces

Marion Grzelka, Iurii Antoniuk, Eric Drockenmuller et al. (2021) · arXiv (2105.04188v1)

Open AccessDOI ↗PDF ↗

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Polariton assisted down-conversion of photons via nonadiabatic molecular dynamics: a molecular dynamical Casimir effect

Juan B. Pérez-Sánchez, Joel Yuen-Zhou (2019) · arXiv (1909.13024v1)

Open AccessPDF ↗

Benzene – diethyl ketone association. The excess molar enthalpy of (cyclohexane + diethyl ketone)(g) and (benzene + diethyl ketone)(g) from temperatures 373.2 K to 423.2 K

C.J. Wormald, C. Mathonat (1998) · The Journal of Chemical Thermodynamics

Cytowania: 5$ PaywallDOI ↗

Fluorescence Signal Amplification: Red Carbon Dots@SiO(2)-Induced Ultra-sensitive Immunoassay for Diethyl Phthalate.

Chen B, Li L, Yang Q et al. (2023) · Journal of fluorescence

$ PaywallDOI ↗PubMed ↗

A Mechanistic Understanding of Hydrogen Peroxide Decomposition by Vanadium Minerals for Diethyl Phthalate Degradation.

Fang G, Deng Y, Huang M et al. (2018) · Environmental science & technology

$ PaywallDOI ↗PubMed ↗

Self-corrected dual-optical immunosensors using carbon dots@SiO(2)@MnO(2) improving diethyl phthalate detection accuracy.

Chen B, Li L, Yang Q et al. (2023) · Talanta

$ PaywallDOI ↗PubMed ↗

Reproductive toxicology. Diethylphthalate.

(1997) · Environmental health perspectives

$ PaywallPubMed ↗

Efficient transformation of diethyl phthalate using calcium peroxide activated by pyrite.

Zhou Y, Huang M, Wang X et al. (2020) · Chemosphere

$ PaywallDOI ↗PubMed ↗

Catalytic Annulation of Diethyl Methylenecyclopropane-1,1-dicarboxylate with 1,1-Dicyanoalkenes

$ PaywallDOI ↗

Catalytic Annulation of Diethyl Methylenecyclopropane-1,1-dicarboxylate with 1,1-Dicyanoalkenes

$ PaywallDOI ↗

Diethyl Acetylene Dicarboxylate 762‐21‐0

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

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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

DIETHYL PHTHALATE · 84-66-2 · Ethyl phthalate · phthalic acid diethyl ester · Anozol · diethyl benzene-1,2-dicarboxylate · Neantine · Phthalol · Solvanol · Palatinol A · Placidol E · Unimoll DA · Diethyl o-phthalate · Phthalsaeurediaethylester · o-Bis(ethoxycarbonyl)benzene

数据来源

📊 PubChem CID 6781 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

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