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.

Was ist Dimethyl carbonate?

Dimethyl carbonate ist eine chemische Verbindung, registriert unter der CAS-Nummer 616-38-6. Summenformel: C3H6O3. Molmasse: 90.08 g/mol. IUPAC: dimethyl carbonate.

Wie lautet die CAS-Nummer von Dimethyl carbonate?

Die CAS-Nummer von Dimethyl carbonate ist 616-38-6 — eine eindeutige Kennung des Chemical Abstracts Service (CAS).

Wie lautet die Summenformel von Dimethyl carbonate?

Summenformel: C3H6O3. Molmasse: 90.08 g/mol. logP (XLogP3): 0.5. PSA: 35.5 Å².

Welche GHS-Gefahren hat Dimethyl carbonate?

Gemäß der GHS-Klassifizierung muss Dimethyl carbonate mit den folgenden Gefahrenhinweisen gekennzeichnet werden: H225 (Flüssigkeit und Dampf leicht entzündbar.).

Wo kann ich Dimethyl carbonate kaufen?

Dimethyl carbonate ist in unserem Shop erhältlich. Produkt ansehen: https://epchems.online/products/dimethyl-carbonate/

Woher stammen die chemischen Daten für Dimethyl carbonate?

Die chemischen Daten für Dimethyl carbonate stammen aus zuverlässigen Quellen: PubChem (NIH), ChEMBL (EBI). PubChem CID: 12021. Konform mit der CLP-Verordnung (EG 1272/2008), verfügbar unter der Lizenz CC-BY 4.0.

Dimethyl carbonate

CAS 616-38-6 · C₃H₆O₃ · MW 90.08 g/mol

Über Dimethyl carbonate

Dimethyl carbonate ist eine chemische Verbindung, registriert unter der Nummer CAS 616-38-6, mit der Summenformel C₃H₆O₃, und einer Molmasse von 90.08 g/mol.

Das Molekül enthält 12 Atome, verbunden durch 11 chemische Bindungen. Der vollständige systematische IUPAC-Name dieser Verbindung lautet dimethyl carbonate. Das interaktive 3D-Modell oben zeigt die räumliche Anordnung der Atome — Sie können es mit der Maus drehen, mit dem Scrollrad zoomen und zwischen den Darstellungsmodi Skelett / Ball & Stick / Space Fill wechseln.

Hinsichtlich der physikalisch-chemischen Eigenschaften der Verteilungskoeffizient logP = 0.5 (positiver Wert, lipophile Verbindung), polare Oberfläche PSA = 35.5 Å², 0 Donatoren und 3 Wasserstoffbrücken-Akzeptoren. Diese Parameter sind entscheidend für die Beurteilung der Bioverfügbarkeit und der Wechselwirkung mit Biomolekülen.

Die chemischen Daten für diese Verbindung stammen aus PubChem (NIH NLM NCBI), einer der größten chemischen Datenbanken der Welt. Alle Informationen werden automatisch aktualisiert und um GHS-Gefahrenhinweise gemäß der CLP-Verordnung (EG 1272/2008) ergänzt. Das obige Widget darf für Bildungs-, Forschungs- und kommerzielle Zwecke verwendet werden.

Physikalisch-chemische Eigenschaften

Wzór sumaryczny	C₃H₆O₃
Masa molowa	90.08 g/mol
IUPAC	dimethyl carbonate
SMILES	`COC(=O)OC`
InChIKey	`IEJIGPNLZYLLBP-UHFFFAOYSA-N`
logP (XLogP3)	0.5
PSA	35.5 Å²
HBD / HBA	0 / 3
PubChem CID	CID 12021 ↗

GHS-Sicherheit

Sygnał: Niebezpieczeństwo

GHS02

H225 — Wysoce łatwopalna ciecz i pary

Wissenschaftliche Literatur

Literatura naukowa

20 artykułów · 15 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

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Greener and Whiter Analytical Procedure for Theobromine and Caffeine Determination in Tea Using Dimethyl Carbonate as an Extraction Solvent and Mobile Phase Constituent in Reversed-Phase Liquid Chromatography.

(2025)

Cytowania: 6Open AccessDOI ↗PubMed ↗PDF ↗

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Spatially proximate In5 and In4+1···In4 on In2O3 enable efficient dimethyl carbonate synthesis from CO2 below 100 oC

You Wang, Jiyun Ren, Qing Guo et al. (2025) · Nano Research

Cytowania: 4Open AccessDOI ↗PDF ↗

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TiO2‑Doped CeO2 Nanorod Catalyst for Direct Conversion of CO2 and CH3OH to Dimethyl Carbonate: Catalytic Performance and Kinetic Study

Zhongwei Fu, Yunyun Zhong, Yuehong Yu et al. (2018) · ACS Omega

Cytowania: 121Open AccessDOI ↗PDF ↗

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Indirect methanol synthesis from CO2 through high-efficient dimethyl carbonate hydrogenation as a bridge below 100°C.

et al. (2025)

Cytowania: 3Open AccessDOI ↗PubMed ↗PDF ↗

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Promoting Intermediate Stabilization and Coupling for Dimethyl Carbonate Electrosynthesis.

et al. (2025)

Cytowania: 3Open AccessDOI ↗PubMed ↗PDF ↗

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Functional poly(ionic liquid) with unique zwitterionic structure as efficient catalyst for the conversion of ethylene carbonate to dimethyl carbonate.

et al. (2025)

Cytowania: 2Open AccessDOI ↗PubMed ↗PDF ↗

Frustrated Lewis Pairs on Porous Ceria Nanorods Drive Low-Temperature Dimethyl Carbonate Hydrogenation to Methanol.

et al. (2026)

Cytowania: 2$ PaywallDOI ↗PubMed ↗

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Br-Mediated Pd Catalysis Promotes Intermediates Stabilization and Coupling for Anodic Electrosynthesis of Dimethyl Carbonate.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Exploring Dimethyl Carbonate as a Green and Efficient Solvent for Highly Regioselective Iodination of Arylboronic Acids.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Efficient Catalytic Ozonation of Dimethyl Carbonate on M‑Mn (M = Cr, Cu, Co)/ZSM‑5 Zeolites: Further Analysis of Reaction Mechanism.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Adsorptive Separation, Interfacial Configuration, and Mechanism of Dimethyl Carbonate-Methanol Azeotrope onto α-Al2O3: Experimental and Molecular Simulations.

et al. (2025)

Open AccessDOI ↗PubMed ↗PDF ↗

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Green reversed-phase liquid chromatography of CoQ10 and vitamin E using dimethyl carbonate as the mobile phase modifier

Mohamed A. Abdelaziz, Neil D. Danielson (2026) · Green Analytical Chemistry

Open AccessDOI ↗PDF ↗

Dimethyl carbonate as a green solvent in ternary solvent systems for liquid chromatography: Investigation of miscibility limits and mobile phase viscosities.

(2026)

$ PaywallDOI ↗PubMed ↗

Synergistic Effects of Poly(ionic liquids)@MOF-808 Nanocomposites for Direct Conversion of Carbon Dioxide into Dimethyl Carbonate.

et al. (2025)

$ PaywallDOI ↗PubMed ↗

Tuning vacancy structures in metal-doped CeO2 nanorods to alter the reaction equilibrium of direct synthesis of dimethyl carbonate from CO2 and methanol.

et al. (2026)

$ PaywallDOI ↗PubMed ↗

Sustainable C-H Methylation Employing Dimethyl Carbonate.

et al. (2024)

$ PaywallDOI ↗PubMed ↗

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Glycerol carbonate synthesis from glycerol and dimethyl carbonate using guanidine ionic liquids

Cui, Penglei, Wang, Xingxing, Zhang, Peng et al. (2017) · Elsevier BV

Open AccessDOI ↗PDF ↗

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TiO2 nanofibers of different crystal phases for transesterification of alcohols with dimethyl carbonate

Liu, Hongwei, Ke, Xuebin, Zheng, Zhanfeng et al. (2014) · Elsevier

Open AccessDOI ↗PDF ↗

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N-heterocyclic carbene catalyzed synthesis of dimethyl carbonate via transesterification of ethylene carbonate with methanol

Shi, Wei-Jie, Guo, Hao, Li, Wen-Juan et al. (2015) · Springer

Open AccessDOI ↗PDF ↗

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Optimization of supercritical dimethyl carbonate method for biodiesel production

Saka, Shiro, Ilham, Zul (2012) · Elsevier Ltd.

Open AccessDOI ↗PDF ↗

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

Synonyme

Dimethyl carbonate · 616-38-6 · Methyl carbonate · Carbonic acid, dimethyl ester · Methyl carbonate ((MeO)2CO) · NSC 9371 · KE9J097SPN · AI3-14705 · NSC-9371 · DTXCID609192 · CHEBI:36596 · RefChem:5760 · 210-478-4 · Carbonic Acid Dimethyl Ester · DIMETHYLCARBONATE

Datenquellen

📊 PubChem CID 12021 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

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