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 Iron oxide yellow?

Iron oxide yellow is een chemische verbinding, geregistreerd onder CAS-nummer 51274-00-1. Brutoformule: FeH₃O₃. Molaire massa: 106.87 g/mol. IUPAC: iron(3+);oxygen(2-);hydroxide;hydrate.

Wat is het CAS-nummer van Iron oxide yellow?

Het CAS-nummer van Iron oxide yellow is 51274-00-1 — een unieke identificatie van de Chemical Abstracts Service (CAS).

Wat is de brutoformule van Iron oxide yellow?

Brutoformule: FeH₃O₃. Molaire massa: 106.87 g/mol. PSA: 3 Å².

Waar kan ik Iron oxide yellow kopen?

Iron oxide yellow is verkrijgbaar in onze winkel. Bekijk het product: https://epchems.online/products/iron-oxide-yellow/

Waar komen de chemische gegevens voor Iron oxide yellow vandaan?

De chemische gegevens voor Iron oxide yellow zijn afkomstig van gezaghebbende bronnen: PubChem (NIH). PubChem CID: 23320441. Conform de CLP-verordening (EG 1272/2008), beschikbaar onder de CC-BY 4.0-licentie.

Iron oxide yellow

C.I. Pigment Yellow 42

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

Over Iron oxide yellow

Iron oxide yellow is een chemische verbinding, geregistreerd onder nummer CAS 51274-00-1, met de brutoformule FeH₃O₃, en een molaire massa van 106.87 g/mol.

Het molecuul bevat 7 atomen verbonden door 3 chemische bindingen. De volledige systematische IUPAC-naam van deze verbinding is iron(3+);oxygen(2-);hydroxide;hydrate. 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, polair oppervlak PSA = 3 Å², 2 donoren en 3 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	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 ↗

Wetenschappelijke literatuur

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.

Gegevensbronnen

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

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