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.

Wat is Ethylene glycol?

Ethylene glycol is een chemische verbinding, geregistreerd onder CAS-nummer 107-21-1. Brutoformule: C2H6O2. Molaire massa: 62.07 g/mol. IUPAC: ethane-1,2-diol.

Wat is het CAS-nummer van Ethylene glycol?

Het CAS-nummer van Ethylene glycol is 107-21-1 — een unieke identificatie van de Chemical Abstracts Service (CAS).

Wat is de brutoformule van Ethylene glycol?

Brutoformule: C2H6O2. Molaire massa: 62.07 g/mol. logP (XLogP3): -1.4. PSA: 40.5 Å².

Wat zijn de GHS-gevaren van Ethylene glycol?

Volgens de GHS-classificatie moet Ethylene glycol worden voorzien van de volgende gevarenaanduidingen: H302 (Schadelijk bij inslikken.).

Waar kan ik Ethylene glycol kopen?

Ethylene glycol is verkrijgbaar in onze winkel. Bekijk het product: https://epchems.online/products/ethylene-glycol/

Waar komen de chemische gegevens voor Ethylene glycol vandaan?

De chemische gegevens voor Ethylene glycol zijn afkomstig van gezaghebbende bronnen: PubChem (NIH), ChEMBL (EBI). PubChem CID: 174. Conform de CLP-verordening (EG 1272/2008), beschikbaar onder de CC-BY 4.0-licentie.

Ethylene glycol

CAS 107-21-1 · C₂H₆O₂ · MW 62.07 g/mol

Over Ethylene glycol

Ethylene glycol is een chemische verbinding, geregistreerd onder nummer CAS 107-21-1, met de brutoformule C₂H₆O₂, en een molaire massa van 62.07 g/mol.

Het molecuul bevat 10 atomen verbonden door 9 chemische bindingen. De volledige systematische IUPAC-naam van deze verbinding is ethane-1,2-diol. Het interactieve 3D-model hierboven toont de ruimtelijke rangschikking van de atomen — u kunt het met de muis draaien, met het scrollwiel inzoomen en schakelen tussen de weergavemodi skelet / Ball & Stick / Space Fill.

Wat de fysisch-chemische eigenschappen betreft, de verdelingscoëfficiënt logP = -1.4 (negatieve waarde, hydrofiele verbinding), polair oppervlak PSA = 40.5 Å², 2 donoren en 2 waterstofbrugacceptoren. Deze parameters zijn cruciaal bij de beoordeling van de biobeschikbaarheid en de interactie met biomoleculen.

De chemische gegevens voor deze verbinding zijn afkomstig van PubChem (NIH NLM NCBI), een van de grootste chemische databanken ter wereld. Alle informatie wordt automatisch bijgewerkt en verrijkt met vertalingen van GHS-gevarenaanduidingen conform de CLP-verordening (EG 1272/2008). De bovenstaande widget mag worden gebruikt voor educatieve, onderzoeks- en commerciële doeleinden.

Fysisch-chemische eigenschappen

Wzór sumaryczny	C₂H₆O₂
Masa molowa	62.07 g/mol
IUPAC	ethane-1,2-diol
SMILES	`C(CO)O`
InChIKey	`LYCAIKOWRPUZTN-UHFFFAOYSA-N`
logP (XLogP3)	-1.4
PSA	40.5 Å²
HBD / HBA	2 / 2
PubChem CID	CID 174 ↗

GHS-veiligheid

Sygnał: Uwaga

GHS07

H302 — Działa szkodliwie po połknięciu

Wetenschappelijke literatuur

Literatura naukowa

20 artykułów · 12 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

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Reference Correlation for the Viscosity of Ethane-1,2-diol (Ethylene Glycol) from the Triple Point to 465 K and up to 100 MPa.

et al. (2021)

Cytowania: 7Open AccessDOI ↗PubMed ↗PDF ↗

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Reference Correlation for the Thermal Conductivity of Ethane-1,2-diol (Ethylene Glycol) from the Triple Point to 475 K and Pressures up to 100 MPa.

et al. (2021)

Cytowania: 3Open AccessDOI ↗PubMed ↗PDF ↗

Simple enzymatic screening assay for ethylene glycol (ethane-1,2-diol) in serum.

(1989)

Cytowania: 17$ PaywallDOI ↗PubMed ↗

Synthesis of alpha,alpha-, alpha,Beta-, and Beta,Beta-(dimaltoside)s of ethane-1,2-diol, propane-1,3-diol, and butane-1,4-diol: a proposal for an initial adhesion mode.

(1998)

Cytowania: 10$ PaywallDOI ↗PubMed ↗

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New Insights Into the Structure of Hydroxylated and Alkylated Glycols: A Comparative X-ray Diffraction, Raman and Molecular Dynamics Study of Ethane-1,2-Diol, 2-Methoxyethan-1-ol and 1,2-Dimethoxy Ethane

et al. (2020)

Open AccessDOI ↗PDF ↗

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Activation of NRF2/HO-1 Pathway by aqueous methanolic leaf extract of Triclisia gilletii and selected identified compounds in Triclisia gilletii, modulates crystal binding genes (CD44/OPN) in Ethane-1,2-diol-induced nephrolithic rats

Olanrewaju Sam Olayeriju, Olusola Olalekan Elekofehinti, Mary Tolulope Olaleye et al. (2021) · Phytomedicine Plus

Open AccessDOI ↗PDF ↗

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New Insights into the Structure of Glycols and Derivatives: A Comparative X-Ray Diffraction, Raman and Molecular Dynamics Study of Ethane-1,2-Diol, 2-Methoxyethan-1-ol and 1,2-Dimethoxy Ethane

Lorenzo Gontrani, Pietro Tagliatesta, Antonio Agresti et al. (2020) · Crystals

Open AccessDOI ↗PDF ↗

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Bis(2,2'-bipyridyl-κN,N')(sulfato-κO,O')zinc(II) ethane-1,2-diol solvate.

(2010)

Cytowania: 5Open AccessDOI ↗PubMed ↗PDF ↗

Lipase-catalyzed transesterification of 2-hydroxy-2-(pentafluorophenyl)acetonitrile leading to (1R,2R)- and (1S,2S)-bis(pentafluorophenyl)ethane-1,2-diol

et al. (2000)

Cytowania: 5$ PaywallDOI ↗PubMed ↗

Synthesis, structure and properties of mononuclear oxovanadium(V) alkoxides incorporating chelated ethane-1,2-diol and propane-1,3-diol

Kajal Krishna Rajak, Sujit Mondal, Sankar Prasad Rath (2000) · Polyhedron

Cytowania: 25$ PaywallDOI ↗

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Poly[aqua-(μ2-4,4'-bipyridine-κ(2) N:N')(ethane-1,2-diol-κO)(μ2-sulfato-κ(2) O:O')nickel(II)].

(2013)

Cytowania: 1Open AccessDOI ↗PubMed ↗PDF ↗

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Poly[diaqua-bis-(μ-4,4'-bipyridine-κ(2) N:N')bis-(ethane-1,2-diol-κO)bis(μ-sulfato-κ(2) O:O')dicobalt(II)].

(2013)

Open AccessDOI ↗PubMed ↗PDF ↗

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Copper(II)-Promoted Reactions of α-Pyridoin Oxime: A Dodecanuclear Cluster and a 2D Coordination Polymer

Konstantina H. Baka, Luís Cunha-Silva, Catherine P. Raptopoulou et al. (2025) · Magnetochemistry

Open AccessDOI ↗PDF ↗

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The crystal structure of 1,2-bis(1H-benzo[d]imidazol-2-yl)ethane-1,2-diol — N-(2-aminophenyl)-3-(1H-benzo[d]imidazol-2-yl)-2,3-dihydroxypropanamide (1/1), C32H30N8O5

Clark Candyce R., Hosten Eric C., Betz Richard (2021) · Zeitschrift für Kristallographie - New Crystal Structures

Open AccessDOI ↗PDF ↗

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Effect of moonseed vine (Triclisia gilletii Staner) on ethane-1,2-diol-induced urolithiasis and its renotoxicity in Wistar albino rats

O. S. Olayeriju, O. O. Crown, O. O. Elekofehinti et al. (2020) · African Journal of Urology

Open AccessDOI ↗PDF ↗

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catena-Poly[[[bis(glycolato-κ2O,O′)copper(II)]-μ-4,4′-bipyridine-κ2N:N′] ethane-1,2-diol monosolvate]

Kai-Long Zhong (2018) · IUCrData

Open AccessDOI ↗PDF ↗

Diffusion coefficient of ethane-1,2-diol into water and ethane-1,2-diol solution

Jochen Winkelmann (2017) · Diffusion in Gases, Liquids and Electrolytes

$ PaywallDOI ↗

Viscosity of the binary liquid mixture of ethane-1,2-diol and propane-1,2-diol

Christian Wohlfarth (2017) · Viscosity of Pure Organic Liquids and Binary Liquid Mixtures

$ PaywallDOI ↗

Viscosity of the binary liquid mixture of ethane-1,2-diol and ethane-1,2-diamine

Christian Wohlfarth (2017) · Viscosity of Pure Organic Liquids and Binary Liquid Mixtures

$ PaywallDOI ↗

Viscosity of the binary liquid mixture of ethane-1,2-diol and propane-1,3-diol

Christian Wohlfarth (2017) · Viscosity of Pure Organic Liquids and Binary Liquid Mixtures

$ PaywallDOI ↗

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

Synoniemen

ETHYLENE GLYCOL · Ethane-1,2-diol · 107-21-1 · 1,2-ethanediol · glycol · monoethylene glycol · 2-hydroxyethanol · 1,2-Dihydroxyethane · Glycol alcohol · Ethylene alcohol · Fridex · Tescol · Norkool · Ethylene dihydrate · Zerex

Gegevensbronnen

📊 PubChem CID 174 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Kopen in de winkel

Ethylene glycol →

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Titanium Dioxide CAS 13463-67-7 · TiO₂ L-Threonine CAS 72-19-5 · C4H9NO3 Methyl methacrylate (MMA) CAS 80-62-6 · C5H8O2 Dipropylene glycol mono propyl ether CAS 35884-42-5 · C10H22O3 Diethyl phthalate (DEP) CAS 84-66-2 · C12H14O4 Polypropylene Glycol CAS 25322-69-4