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 Benzylalkohol?

Benzylalkohol ist eine chemische Verbindung, registriert unter der CAS-Nummer 100-51-6. Summenformel: C7H8O. Molmasse: 108.14 g/mol. IUPAC: phenylmethanol.

Wie lautet die CAS-Nummer von Benzylalkohol?

Die CAS-Nummer von Benzylalkohol ist 100-51-6 — eine eindeutige Kennung des Chemical Abstracts Service (CAS).

Wie lautet die Summenformel von Benzylalkohol?

Summenformel: C7H8O. Molmasse: 108.14 g/mol. logP (XLogP3): 1.1. PSA: 20.2 Å².

Welche GHS-Gefahren hat Benzylalkohol?

Gemäß der GHS-Klassifizierung muss Benzylalkohol mit den folgenden Gefahrenhinweisen gekennzeichnet werden: H302 (Gesundheitsschädlich bei Verschlucken.), H319 (Verursacht schwere Augenreizung.), H317 (Kann allergische Hautreaktionen verursachen.).

Wo kann ich Benzylalkohol kaufen?

Benzylalkohol ist in unserem Shop erhältlich. Produkt ansehen: https://epchems.online/products/benzyl-alcohol/

Woher stammen die chemischen Daten für Benzylalkohol?

Die chemischen Daten für Benzylalkohol stammen aus zuverlässigen Quellen: PubChem (NIH), ChEMBL (EBI). PubChem CID: 244. Konform mit der CLP-Verordnung (EG 1272/2008), verfügbar unter der Lizenz CC-BY 4.0.

Benzylalkohol

CAS 100-51-6 · C₇H₈O · MW 108.14 g/mol

Über Benzylalkohol

Benzylalkohol ist eine chemische Verbindung, registriert unter der Nummer CAS 100-51-6, mit der Summenformel C₇H₈O, und einer Molmasse von 108.14 g/mol.

Das Molekül enthält 16 Atome, verbunden durch 16 chemische Bindungen. Der vollständige systematische IUPAC-Name dieser Verbindung lautet phenylmethanol. 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 = 1.1 (positiver Wert, lipophile Verbindung), polare Oberfläche PSA = 20.2 Å², 1 Donatoren und 1 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	C₇H₈O
Masa molowa	108.14 g/mol
IUPAC	phenylmethanol
SMILES	`C1=CC=C(C=C1)CO`
InChIKey	`WVDDGKGOMKODPV-UHFFFAOYSA-N`
logP (XLogP3)	1.1
PSA	20.2 Å²
HBD / HBA	1 / 1
PubChem CID	CID 244 ↗

GHS-Sicherheit

Sygnał: Uwaga

GHS07

H302 — Działa szkodliwie po połknięciu

H319 — Działa drażniąco na oczy

H317 — Może powodować reakcję alergiczną skóry

Wissenschaftliche Literatur

Literatura naukowa

20 artykułów · 6 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

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The introduction of the Barbier reaction into polymer chemistry

Xiao-Li Sun, Dong-Ming Liu, Di Tian et al. (2017) · Nature Communications

Cytowania: 64Open AccessDOI ↗PDF ↗

Functionalized Bis(triazolyl)phenylmethanol–palladium(II) Catalysts for Cross Coupling Reactions in Water

Supanan Ampawa, Chanin Kethong, Jiraya Kiriratnikom et al. (2018) · ChemistrySelect

Cytowania: 4$ PaywallDOI ↗

Synthesis of 1,4-benzodioxepines via electrochemical oxyselenenylation of 2-O-tethered alkenyl phenylmethanol and diselenides.

et al. (2024)

Cytowania: 1$ PaywallDOI ↗PubMed ↗

RIFM fragrance ingredient safety assessment, Benzyl alcohol, CAS Registry Number 100-51-6.

et al. (2015)

Cytowania: 7$ PaywallDOI ↗PubMed ↗

A Dual-Functional Luminescent MOF Sensor for Phenylmethanol Molecule and Tb3+ Cation.

et al. (2018)

Cytowania: 12$ PaywallDOI ↗PubMed ↗

Dual reaction channels for photocatalytic oxidation of phenylmethanol on anatase

Ye-Fei Li, Zhi-Pan Liu (2013) · Phys. Chem. Chem. Phys.

Cytowania: 11$ PaywallDOI ↗

NTP Toxicology and Carcinogenesis Studies of Benzyl Alcohol (CAS No. 100-51-6) in F344/N Rats and B6C3F1 Mice (Gavage Studies).

(1989)

Cytowania: 6$ PaywallPubMed ↗

Direct Deoxygenation of Phenylmethanol to Methylbenzene and Benzyl Radicals on Rutile TiO2(110)

Long Chen, R. Scott Smith, Bruce D. Kay et al. (2017) · ACS Catalysis

Cytowania: 6$ PaywallDOI ↗

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Alcohol imination catalyzed by carbon nanostructures synthesized by C(sp2)-C(sp3) free radical coupling

Cheng Wang, Zirui Qiao, Yulan Tian et al. (2023) · iScience

Cytowania: 5Open AccessDOI ↗PDF ↗

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Crystal structure of (diphenylphosphinoyl)phenylmethanol, C19H17O2P

K. Lan, X.-L. Chen (2006) · Zeitschrift für Kristallographie - New Crystal Structures

Open AccessDOI ↗PDF ↗

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Crystal structure of(diphenylphosphinoyl) phenylmethanol,C19H17O2P

K. Lan, X.-L. Chen (2006) · Zeitschrift für Kristallographie - New Crystal Structures

Open AccessDOI ↗PDF ↗

Excess enthalpies of (phenylmethanol or 2-phenylethanol + 2-butanone or N-methylacetamide or N,N-dimethylacetamide)

Liisa Pikkarainen (1988) · The Journal of Chemical Thermodynamics

Cytowania: 9$ PaywallDOI ↗

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Sorption of organic pollutants onto zeolitic tuff

Stefano Salvestrini, Sante Capasso (2016) · Zaštita Materijala

Cytowania: 1Open AccessDOI ↗PDF ↗

On the isobaric vapour—liquid equilibrium of the cyclohexanol—phenylmethanol binary at 101.325 ± 0.067 kPa

Ahmet Alp Sayar (1991) · Fluid Phase Equilibria

Cytowania: 6$ PaywallDOI ↗

Crystal Structure of EcDsbA in a complex with phenylmethanol

R.L. Whitehouse, O.V. Ilyichova, A.J. Taylor (2022) · Worldwide Protein Data Bank

$ PaywallDOI ↗

Phenylmethanol C7H8O + C9H12 Isopropylbenzene

I. Wichterle, J. Linek, Z. Wagner et al. · Landolt-Börnstein - Group IV Physical Chemistry

$ PaywallDOI ↗

Phenol C6H6O + C7H8O Phenylmethanol

I. Wichterle, J. Linek, Z. Wagner et al. · Landolt-Börnstein - Group IV Physical Chemistry

$ PaywallDOI ↗

Ethanoic acid C2H4O2 + C7H8O Phenylmethanol

I. Wichterle, J. Linek, Z. Wagner et al. · Landolt-Börnstein - Group IV Physical Chemistry

$ PaywallDOI ↗

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A pH-dependent shift of redox cofactor specificity in a benzyl alcohol dehydrogenase of aromatoleum aromaticum EbN1.

Gemmecker Y, Winiarska A, Hege D et al. (2024) · Applied microbiology and biotechnology

Open AccessDOI ↗PubMed ↗PDF ↗

A Dual-Functional Luminescent MOF Sensor for Phenylmethanol Molecule and Tb3+ Cation

$ PaywallDOI ↗

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

Synonyme

benzyl alcohol · phenylmethanol · 100-51-6 · benzenemethanol · phenylcarbinol · Benzenecarbinol · Hydroxytoluene · Benzoyl alcohol · alpha-Toluenol · Phenylmethyl alcohol · (Hydroxymethyl)benzene · Phenolcarbinol · alpha-hydroxytoluene · Alcool benzylique · Benzal alcohol

Datenquellen

📊 PubChem CID 244 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

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