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.

Che cos'è Iron oxide yellow?

Iron oxide yellow è un composto chimico registrato con il numero CAS 51274-00-1. Formula bruta: FeH₃O₃. Massa molare: 106.87 g/mol. IUPAC: iron(3+);oxygen(2-);hydroxide;hydrate.

Qual è il numero CAS di Iron oxide yellow?

Il numero CAS di Iron oxide yellow è 51274-00-1 — un identificativo univoco del Chemical Abstracts Service (CAS).

Qual è la formula bruta di Iron oxide yellow?

Formula bruta: FeH₃O₃. Massa molare: 106.87 g/mol. PSA: 3 Å².

Dove acquistare Iron oxide yellow?

Iron oxide yellow è disponibile nel nostro negozio. Vedi il prodotto: https://epchems.online/products/iron-oxide-yellow/

Da dove provengono i dati chimici di Iron oxide yellow?

I dati chimici di Iron oxide yellow provengono da fonti autorevoli: PubChem (NIH). PubChem CID: 23320441. Conformi al Regolamento CLP (CE 1272/2008), disponibili con licenza CC-BY 4.0.

Iron oxide yellow

C.I. Pigment Yellow 42

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

Informazioni su Iron oxide yellow

Iron oxide yellow è un composto chimico registrato con il numero CAS 51274-00-1, con formula bruta FeH₃O₃, e massa molare di 106.87 g/mol.

La molecola contiene 7 atomi collegati da 3 legami chimici. Il nome sistematico IUPAC completo di questo composto è iron(3+);oxygen(2-);hydroxide;hydrate. Il modello 3D interattivo qui sopra permette di visualizzare la disposizione spaziale degli atomi — puoi ruotarlo con il mouse, zoomare con la rotellina e passare tra le modalità di visualizzazione scheletro / Ball & Stick / Space Fill.

Dal punto di vista delle proprietà chimico-fisiche, superficie polare PSA = 3 Å², 2 donatori e 3 accettori di legami a idrogeno. Questi parametri sono fondamentali per valutare la biodisponibilità e l'interazione con le biomolecole.

I dati chimici di questo composto provengono da PubChem (NIH NLM NCBI), uno dei più grandi database chimici al mondo. Tutte le informazioni sono aggiornate automaticamente e arricchite con le traduzioni delle indicazioni di pericolo GHS conformi al Regolamento CLP (CE 1272/2008). Il widget qui sopra può essere utilizzato per scopi educativi, di ricerca e commerciali.

Proprietà chimico-fisiche

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 ↗

Letteratura scientifica

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.

Fonti dei dati

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

Acquista nel negozio

Iron oxide yellow →

Molecole correlate

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