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.

Isopropanol is een chemische verbinding, geregistreerd onder CAS-nummer 67-63-0. Brutoformule: C3H8O. Molaire massa: 60.10 g/mol. IUPAC: propan-2-ol.

Wat is het CAS-nummer van Isopropanol?

Het CAS-nummer van Isopropanol is 67-63-0 — een unieke identificatie van de Chemical Abstracts Service (CAS).

Wat is de brutoformule van Isopropanol?

Brutoformule: C3H8O. Molaire massa: 60.10 g/mol. logP (XLogP3): 0.3. PSA: 20.2 Å².

Wat zijn de GHS-gevaren van Isopropanol?

Volgens de GHS-classificatie moet Isopropanol worden voorzien van de volgende gevarenaanduidingen: H225 (Licht ontvlambare vloeistof en damp.), H336 (Kan slaperigheid of duizeligheid veroorzaken.), H319 (Veroorzaakt ernstige oogirritatie.).

Waar kan ik Isopropanol kopen?

Isopropanol is verkrijgbaar in onze winkel. Bekijk het product: https://epchems.online/products/lsopropyl-alcohol/

Waar komen de chemische gegevens voor Isopropanol vandaan?

De chemische gegevens voor Isopropanol zijn afkomstig van gezaghebbende bronnen: PubChem (NIH), ChEMBL (EBI). PubChem CID: 3776. Conform de CLP-verordening (EG 1272/2008), beschikbaar onder de CC-BY 4.0-licentie.

Isopropanol

CAS 67-63-0 · C₃H₈O · MW 60.10 g/mol

Over Isopropanol

Isopropanol is een chemische verbinding, geregistreerd onder nummer CAS 67-63-0, met de brutoformule C₃H₈O, en een molaire massa van 60.10 g/mol.

Het molecuul bevat 12 atomen verbonden door 11 chemische bindingen. De volledige systematische IUPAC-naam van deze verbinding is propan-2-ol. 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 = 0.3 (positieve waarde, lipofiele verbinding), polair oppervlak PSA = 20.2 Å², 1 donoren en 1 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	C₃H₈O
Masa molowa	60.10 g/mol
IUPAC	propan-2-ol
SMILES	`CC(C)O`
InChIKey	`KFZMGEQAYNKOFK-UHFFFAOYSA-N`
logP (XLogP3)	0.3
PSA	20.2 Å²
HBD / HBA	1 / 1
PubChem CID	CID 3776 ↗

GHS-veiligheid

Sygnał: Niebezpieczeństwo

GHS02

GHS07

H225 — Wysoce łatwopalna ciecz i pary

H336 — Może wywoływać uczucie senności lub zawroty głowy

H319 — Działa drażniąco na oczy

Wetenschappelijke literatuur

Literatura naukowa

20 artykułów · 13 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

Investigation of new 1,2,3-triazolyl-quinolinyl-propan-2-ol derivatives as potential antimicrobial agents: in vitro and in silico approach.

et al. (2024)

Cytowania: 4$ PaywallDOI ↗PubMed ↗

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Effect of Co-Inoculation with Saccharomyces cerevisiae and Lactic Acid Bacteria on the Content of Propan-2-ol, Acetaldehyde and Weak Acids in Fermented Distillery Mashes.

et al. (2019)

Cytowania: 2Open AccessDOI ↗PubMed ↗PDF ↗

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Crystal structure of 1,3-bis-[(E)-4-meth-oxy-benzyl-idene-amino]-propan-2-ol.

et al. (2016)

Cytowania: 2Open AccessDOI ↗PubMed ↗PDF ↗

Enantiodivergent syntheses of (+)- and (-)-1-(2,6-dimethylphenoxy)propan-2-ol: A way to access (+)- and (-)-mexiletine from D-(+)-mannitol.

et al. (2020)

Cytowania: 4$ PaywallDOI ↗PubMed ↗

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Novel phenoxy-((phenylethynyl) selanyl) propan-2-ol derivatives as potential anticancer agents.

et al. (2023)

Cytowania: 1Open AccessDOI ↗PubMed ↗PDF ↗

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Discovery of a multipotent chaperone, 1-(2,6-Difluorobenzylamino)-3-(1,2,3,4-tetrahydrocarbazol-9-yl)-propan-2-ol with the inhibitory effects on the proliferation of prion, cancer as well as influenza virus.

et al. (2020)

Cytowania: 1Open AccessDOI ↗PubMed ↗PDF ↗

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Cardioprotective Effects of 1-(3,6-Dibromo-carbazol-9-yl)-3-Phenylamino-Propan-2-Ol in Diabetic Hearts via Nicotinamide Phosphoribosyltransferase Activation.

et al. (2022)

Cytowania: 15Open AccessDOI ↗PubMed ↗PDF ↗

Discovery, Optimization, and Biological Evaluation of Novel (1,2,4-Triazol-1-yl)propan-2-ol Derivatives as Potent Demethylation Inhibitors.

et al. (2026)

$ PaywallDOI ↗PubMed ↗

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Antifungal activity of Co(II) and Cu(II) complexes containing 1,3-bis(benzotriazol-1-yl)-propan-2-ol on the growth and virulence traits of fluconazole-resistant Candida species: synthesis, DFT calculations, and biological activity.

et al. (2023)

Cytowania: 9Open AccessDOI ↗PubMed ↗PDF ↗

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Crystal structure of di-bromido-tetra-kis(propan-2-ol-κO)nickel(II).

et al. (2015)

Open AccessDOI ↗PubMed ↗PDF ↗

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Hydrogen bonding and percolation in propan-2-ol -- water liquid mixtures: X-ray diffraction experiments and computer simulations

Szilvia Pothoczki, Ildikó Pethes, László Pusztai et al. (2020) · arXiv (2001.11923v1)

Open AccessDOI ↗PDF ↗

Excess Molar Volumes of 1,3-Diethyl Propanedioate with Methanol, Ethanol, Propan-1-ol, Propan-2-ol, Butan-2-ol, 2-Methyl-propan-1-ol, and Pentan-1-ol at T = (288.15, 298.15, 313.15, and 328.15) K

Yihe Wang, Weidong Yan (2010) · Journal of Chemical & Engineering Data

Cytowania: 7$ PaywallDOI ↗

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Crystal structure of naltrexone chloride solvates with ethanol, propan-2-ol, and 2-methyl-propan-2-ol.

(2017)

Cytowania: 2Open AccessDOI ↗PubMed ↗PDF ↗

Excess molar enthalpies of (propan-1-ol or propan-2-ol + acetonitrile), (propan-1-ol or propan-2-ol + chlorobenzene), and (propan-1-ol or propan-2-ol + acetonitrile + chlorobenzene) at 298.15 K

Isamu Nagata, Kazuhiro Tamura (1988) · The Journal of Chemical Thermodynamics

Cytowania: 24$ PaywallDOI ↗

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Solvent-driven Radiolytic Transformation of Hcb in Propan-2-ol Under Gamma Irradiation

et al. (2026)

Open AccessDOI ↗PDF ↗

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Crystal structure of 1,3-bis-[(E)-benzyl-idene-amino]-propan-2-ol.

et al. (2017)

Cytowania: 1Open AccessDOI ↗PubMed ↗PDF ↗

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A new member of a class of rod-like Mn12 single molecule magnets using 2-(pyridine-2-ly)propan-2-ol.

et al. (2019)

Cytowania: 1Open AccessDOI ↗PubMed ↗PDF ↗

The enthalpies of solution of ethanol, propan-1-ol, propan-2-ol and butan-1-ol in deuterium oxide

DJT Hill, C Malar (1975) · Australian Journal of Chemistry

Cytowania: 1$ PaywallDOI ↗

Excess molar enthalipies of (propan-1-ol + butan-2-one) and of (propan-1-ol or propan-2-ol + butan-2-one + benzene) at the temperature 298.15 K

Kazuhiro Tamura, Isamu Nagata (1991) · The Journal of Chemical Thermodynamics

Cytowania: 11$ PaywallDOI ↗

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catena-Poly[1-butyl-3-methyl-imidazolium [[dichlorido(methanol-κO)(propan-2-ol-κO)lanthanate(III)]-di-μ-chlorido]].

Han Y, Dai F, Sykes AG et al. (2012) · Acta crystallographica. Section E, Structure reports online

Open AccessDOI ↗PubMed ↗PDF ↗

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

Synoniemen

Isopropyl alcohol · isopropanol · 2-Propanol · Propan-2-ol · 67-63-0 · 2-Hydroxypropane · Dimethylcarbinol · sec-Propyl alcohol · Alkolave · Avantine · Hartosol · Petrohol · i-Propanol · 1-Methylethanol · Takineocol

Gegevensbronnen

📊 PubChem CID 3776 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Kopen in de winkel

Isopropyl alcohol →

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