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.

Qu'est-ce que Iron oxide yellow ?

Iron oxide yellow est un composé chimique enregistré sous le numéro CAS 51274-00-1. Formule brute: FeH₃O₃. Masse molaire: 106.87 g/mol. IUPAC: iron(3+);oxygen(2-);hydroxide;hydrate.

Quel est le numéro CAS de Iron oxide yellow ?

Le numéro CAS de Iron oxide yellow est 51274-00-1 — un identifiant unique du Chemical Abstracts Service (CAS).

Quelle est la formule brute de Iron oxide yellow ?

Formule brute: FeH₃O₃. Masse molaire: 106.87 g/mol. PSA: 3 Å².

Où acheter Iron oxide yellow ?

Iron oxide yellow est disponible dans notre boutique. Voir le produit : https://epchems.online/products/iron-oxide-yellow/

D'où proviennent les données chimiques de Iron oxide yellow ?

Les données chimiques de Iron oxide yellow proviennent de sources faisant autorité : PubChem (NIH). PubChem CID: 23320441. Conformes au règlement CLP (CE 1272/2008), disponibles sous licence CC-BY 4.0.

Iron oxide yellow

C.I. Pigment Yellow 42

CAS 51274-00-1 · FeH₃O₃ · MW 106.87 g/mol

À propos de Iron oxide yellow

Iron oxide yellow est un composé chimique enregistré sous le numéro CAS 51274-00-1, de formule brute FeH₃O₃, et de masse molaire 106.87 g/mol.

La molécule contient 7 atomes reliés par 3 liaisons chimiques. Le nom systématique IUPAC complet de ce composé est iron(3+);oxygen(2-);hydroxide;hydrate. Le modèle 3D interactif ci-dessus permet de visualiser l'arrangement spatial des atomes — vous pouvez le faire pivoter à la souris, zoomer avec la molette et basculer entre les modes de visualisation squelette / Ball & Stick / Space Fill.

Du point de vue des propriétés physico-chimiques, surface polaire PSA = 3 Å², 2 donneurs et 3 accepteurs de liaisons hydrogène. Ces paramètres sont essentiels pour évaluer la biodisponibilité et l'interaction avec les biomolécules.

Les données chimiques de ce composé proviennent de PubChem (NIH NLM NCBI), l'une des plus grandes bases de données chimiques au monde. Toutes les informations sont mises à jour automatiquement et enrichies de traductions des mentions de danger GHS conformes au règlement CLP (CE 1272/2008). Le widget ci-dessus peut être utilisé à des fins éducatives, de recherche et commerciales.

Propriétés physico-chimiques

Wzór sumaryczny	FeH₃O₃
Masa molowa	106.87 g/mol
IUPAC	iron(3+);oxygen(2-);hydroxide;hydrate
SMILES	`O.[OH-].[O-2].[Fe+3]`
InChIKey	`LDHBWEYLDHLIBQ-UHFFFAOYSA-M`
logP (XLogP3)	—
PSA	3 Å²
HBD / HBA	2 / 3
PubChem CID	CID 23320441 ↗

Littérature scientifique

Literatura naukowa

20 artykułów · 16 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

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cboamd: A Machine Learning Molecular Dynamics Framework for Vibrational Strong Coupling

Yifan Li, Roberto Car, Johannes Flick (2026) · arXiv (2609.22022v1)

Open AccessPDF ↗

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Development of a Non-Empirical Exchange-Hole Dipole Moment Dispersion Model

Alastair J. A. Price, Alberto Otero-de-la-Roza (2026) · arXiv (2609.21971v1)

Open AccessPDF ↗

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Machine learning magnetic interactions from neutron powder diffraction data

Adit S. Desai, Yongqiang Cheng, Joseph A. M. Paddison (2026) · arXiv (2609.21970v1)

Open AccessPDF ↗

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Low resistance NiO/β-Ga_{2}O_{3} heterojunction diodes grown via molecular beam epitaxy

Dagny Sacksteder, Anna Sacchi, Renae Gannon et al. (2026) · arXiv (2609.21901v1)

Open AccessPDF ↗

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Electrodeposited Co and Ni Hexacyanoferrates: Insights into Structure and Morphology

Larissa de O. Garcia, Michael Pohlitz, Mohammed F. Kalady et al. (2026) · arXiv (2609.21819v1)

Open AccessPDF ↗

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Material chemical compositon impacts on the band alignments: Preliminary results on the 3D/2D perovskite interfaces

Philippe Baranek (2026) · arXiv (2609.21654v1)

Open AccessPDF ↗

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Programmable Strain-Induced Intrinsic Circularly Polarized Emission from All-Inorganic Perovskite Nanocrystal Glass

Yujie Jiao, Zhenqin Li, Yide Chang et al. (2026) · arXiv (2609.21575v1)

Open AccessPDF ↗

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Orbital angular momentum accumulation in SrVO3 thin films

Julien Brehin, Montserrat X. Aguilar-Pujol, Dongwook Go et al. (2026) · arXiv (2609.21551v1)

Open AccessPDF ↗

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Dual-Sublattice Ferromagnetism Driven by Cooperative Double Exchange and Superexchange at NdNiO$_3$/CaMnO$_3$ Interfaces

Sharup Sheikh, Uditha M. Jayathilake, Michael Terilli et al. (2026) · arXiv (2609.21002v1)

Open AccessPDF ↗

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Competing routes to spontaneous flow in confined active nematics

Rahil N. Valani, Vedad Dzanic, Sumesh P. Thampi et al. (2026) · arXiv (2609.20786v1)

Open AccessPDF ↗

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Spacetime Dynamics of Altermagnetic Magnons

Ali Emami Kopaei, Karthik Subramaniam Eswaran, Krzysztof Wohlfeld (2026) · arXiv (2609.20767v1)

Open AccessPDF ↗

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Molecular Geometry Understanding Has Unintendedly Emerged in Frontier Large Language Models

Gregorii A. Semakin, Timofey V. Losev, Ilya V. Prolomov et al. (2026) · arXiv (2609.20666v1)

Open AccessPDF ↗

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A Gaussian process coarse-grained potential for Na-montmorillonite

Yalda Pedram, Yaoting Zhang, Laurent Brochard et al. (2026) · arXiv (2609.20645v1)

Open AccessPDF ↗

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Spin-Lattice Dynamics and Interactions in Magnonic Spinels

Hari Paudyal, Yuri Suzuki, Michael E. Flatté et al. (2026) · arXiv (2609.20618v1)

Open AccessPDF ↗

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Tuning the Coercive Field in Ferroelectric Hf0.5Zr0.5O2-Al2O3 Heterostructures via Interfacial Charge Dynamics

Marshall B. Frye, Chanyoung Kim, Jeong-Woo Sun et al. (2026) · arXiv (2609.20482v1)

Open AccessPDF ↗

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Approaching Pharmaceutical Patent Enforcement Using Intellectual Property Rights and Product Innovation.

(2020)

Open AccessDOI ↗PDF ↗

Boosted Oxygen Evolution Reactivity via Atomic Iron Doping in Cobalt Carbonate Hydroxide Hydrate

$ PaywallDOI ↗

Direct Observation of Oxygen Rebound with an Iron-Hydroxide Complex

$ PaywallDOI ↗

Direct Observation of Oxygen Rebound with an Iron-Hydroxide Complex

$ PaywallDOI ↗

Direct Observation of Oxygen Rebound with an Iron-Hydroxide Complex

$ PaywallDOI ↗

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

Sources des données

📊 PubChem CID 23320441 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Acheter en boutique

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Molécules apparentées

Triethylene Diamine CAS 280-57-9 · C6H12N2 Propylene Glycol Ethyl Ether CAS 1569-02-4 · C5H12O2 Diethylene glycol monobutyl ether CAS 112-34-5 · C8H18O3 Maleic anhydride CAS 108-31-6 · C4H2O3 Hydrochloric acid CAS 7647-01-0 · ClH Isopropyl alcohol CAS 67-63-0 · C3H8O