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.

Tert-Butanol is een chemische verbinding, geregistreerd onder CAS-nummer 75-65-0. Brutoformule: C4H10O. Molaire massa: 74.12 g/mol. IUPAC: 2-methylpropan-2-ol.

Wat is het CAS-nummer van Tert-Butanol?

Het CAS-nummer van Tert-Butanol is 75-65-0 — een unieke identificatie van de Chemical Abstracts Service (CAS).

Wat is de brutoformule van Tert-Butanol?

Brutoformule: C4H10O. Molaire massa: 74.12 g/mol. logP (XLogP3): 0.5. PSA: 20.2 Å².

Wat zijn de GHS-gevaren van Tert-Butanol?

Volgens de GHS-classificatie moet Tert-Butanol worden voorzien van de volgende gevarenaanduidingen: H225 (Licht ontvlambare vloeistof en damp.), H332 (Schadelijk bij inademing.), H335 (Kan irritatie van de luchtwegen veroorzaken.), H319 (Veroorzaakt ernstige oogirritatie.).

Waar kan ik Tert-Butanol kopen?

Tert-Butanol is verkrijgbaar in onze winkel. Bekijk het product: https://epchems.online/products/tert-butanol/

Waar komen de chemische gegevens voor Tert-Butanol vandaan?

De chemische gegevens voor Tert-Butanol zijn afkomstig van gezaghebbende bronnen: PubChem (NIH), ChEMBL (EBI). PubChem CID: 6386. Conform de CLP-verordening (EG 1272/2008), beschikbaar onder de CC-BY 4.0-licentie.

Tert-Butanol

CAS 75-65-0 · C₄H₁₀O · MW 74.12 g/mol

Over Tert-Butanol

Tert-Butanol is een chemische verbinding, geregistreerd onder nummer CAS 75-65-0, met de brutoformule C₄H₁₀O, en een molaire massa van 74.12 g/mol.

Het molecuul bevat 15 atomen verbonden door 14 chemische bindingen. De volledige systematische IUPAC-naam van deze verbinding is 2-methylpropan-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 = 0.5 (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	C₄H₁₀O
Masa molowa	74.12 g/mol
IUPAC	2-methylpropan-2-ol
SMILES	`CC(C)(C)O`
InChIKey	`DKGAVHZHDRPRBM-UHFFFAOYSA-N`
logP (XLogP3)	0.5
PSA	20.2 Å²
HBD / HBA	1 / 1
PubChem CID	CID 6386 ↗

GHS-veiligheid

Sygnał: Niebezpieczeństwo

GHS02

GHS07

H225 — Wysoce łatwopalna ciecz i pary

H332 — Działa szkodliwie w następstwie wdychania

H335 — Może powodować podrażnienie dróg oddechowych

H319 — Działa drażniąco na oczy

Wetenschappelijke literatuur

Literatura naukowa

20 artykułów · 9 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

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Viscosities of binary mixtures of toluene with butan-1-ol and 2-methylpropan-2-ol

Dumitrescu Vasile, Pântea Octav (2005) · Journal of the Serbian Chemical Society

Cytowania: 24Open AccessDOI ↗PDF ↗

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Azeotropic Behavior of the 2-Methylpropan-2-ol + water + 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide System

J. Pavlíček, G. Bogdanić, I. Wichterle (2024) · Chemical and Biochemical Engineering Quarterly

Open AccessDOI ↗PDF ↗

Density and Viscosity of Binary Mixtures of Ethyl Acetate with Methanol, Ethanol, Propan-1-ol, Propan-2-ol, Butan-1-ol, 2-Methylpropan-1-ol, and 2-Methylpropan-2-ol at (298.15, 303.15, and 308.15) K

Pandharinath S. Nikam, Tukaram R. Mahale, Mehdi Hasan (1996) · Journal of Chemical & Engineering Data

Cytowania: 114$ PaywallDOI ↗

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Crystal structure of 1-(5-amino-2H-tetrazol-2-yl)-2-methylpropan-2-ol

Hyun Sik Park, Ji Yeon Ryu, Junseong Lee (2015) · Acta Crystallographica Section E: Crystallographic Communications

Open AccessDOI ↗PDF ↗

Density and Viscosity of Mixtures of Nitrobenzene with Methanol, Ethanol, Propan-1-ol, Propan-2-ol, Butan-1-ol, 2-Methylpropan-1-ol, and 2-Methylpropan-2-ol at 298.15 and 303.15 K

Pandharinath S. Nikam, Meera C. Jadhav, Mehdi Hasan (1995) · Journal of Chemical & Engineering Data

Cytowania: 81$ PaywallDOI ↗

Density and Viscosity of Mixtures of Dimethyl Sulfoxide + Methanol, +Ethanol, +Propan-1-ol, +Propan-2-ol, +Butan-1-ol, +2-Methylpropan-1-ol, and +2-Methylpropan-2-ol at 298.15 K and 303.15 K

Pandharinath S. Nikam, Meera C. Jadhav, Mehdi Hasan (1996) · Journal of Chemical & Engineering Data

Cytowania: 59$ PaywallDOI ↗

NTP Toxicology and Carcinogenesis Studies of t -Butyl Alcohol (CAS No. 75-65-0) in F344/N Rats and B6C3F1 Mice (Drinking Water Studies).

(1995)

Cytowania: 8$ PaywallPubMed ↗

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Isothermal Vapor-liquid Equilibria in the 2-Propanol + Water and 2-Methylpropan-2-ol + Water Systems

J. Pavlíček, G. Bogdanić, I. Wichterle (2023) · Chemical and Biochemical Engineering Quarterly

Cytowania: 2Open AccessDOI ↗PDF ↗

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

Aveary R. Menze, Jefferson P. Sinnott, Alexander Y. Nazarenko (2017) · Acta Crystallographica Section E: Crystallographic Communications

Cytowania: 2Open AccessDOI ↗PDF ↗

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Conductometric Study of Sodium Chloride in Aqueous 2- methylpropan-2-ol of Mass Fraction 0.10, 0.30, 0.50, 0.70, 0.80 and 0.90

Perica Bošković, Vesna Sokol, Ante Prkić et al. (2014) · International Journal of Electrochemical Science

Cytowania: 5Open AccessDOI ↗PDF ↗

NTP technical report on toxicity studies of t-butyl alcohol (CAS No. 75-65-0). Administered by inhalation to F344/N rats and B6C3F1 mice.

(1997)

Cytowania: 4$ PaywallPubMed ↗

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Viscosities of binary mixtures of toluene with butan-1-ol and 2-methylpropan-2-ol

VASILE DUMITRESCU, OCTAV PÂNTEA (2005) · Journal of the Serbian Chemical Society

Open AccessPDF ↗

(Vapour + liquid) equilibria in (heptane + propan-2-ol or butan-1-ol or 2-methylpropan-1-ol or 2-methylpropan-2-ol or pentan-1-ol) at the temperature 313.15 K

Jan Zielkiewicz (1994) · The Journal of Chemical Thermodynamics

Cytowania: 19$ PaywallDOI ↗

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Amino-functionalized (meth)acryl polymers by use of a solvent-polarity sensitive protecting group (Br-t-BOC)

Helmut Ritter, Monir Tabatabai, Markus Herrmann (2016) · Beilstein Journal of Organic Chemistry

Cytowania: 3Open AccessDOI ↗PDF ↗

Excess volumes of (heptane + propan-2-ol or butan-1-ol or 2-methylpropan-1-ol or 2-methylpropan-2-ol or pentan-1-ol) at the temperature 313.15 K

Jan Zielkiewicz (1994) · The Journal of Chemical Thermodynamics

Cytowania: 13$ PaywallDOI ↗

Excess volumes of (1,2-dichloroethane or 1,2-dibromoethane + butan-1-ol or butan-2-ol or 2-methylpropan-1-ol or 2-methylpropan-2-ol) at the temperatures 298.15 K and 313.15 K

V. Rodrı́guez, H. Artigas, C. Lafuente et al. (1994) · The Journal of Chemical Thermodynamics

Cytowania: 12$ PaywallDOI ↗

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A study of quartz crystal microbalance modified with polyvinyl acetate nanofiber to differentiate short-chain alcohol isomers

Aditya Rianjanu, Doni B. Nugroho, Ahmad Kusumaatmaja et al. (2019) · Sensing and Bio-Sensing Research

Cytowania: 26Open AccessDOI ↗PDF ↗

Excess molar enthalpies of (butan-2-ol + acetonitrile), (2-methylpropan-2-ol + acetonitrile or benzene), (acetonitrile + benzene), and {butan-2-ol or 2-methylpropan-2-ol + (acetonitrile + benzene)}

Isamu Nagata, Kazuhiro Tamura (1989) · The Journal of Chemical Thermodynamics

Cytowania: 11$ PaywallDOI ↗

Isothermal (vapour+liquid) equilibria of (2-methylpropan-2-ol+acetonitrile) and (2-methylpropan-2-ol+acetonitrile+benzene)

Isamu Nagata (1989) · The Journal of Chemical Thermodynamics

Cytowania: 9$ PaywallDOI ↗

Excess molar enthalpies of (methylcyclohexane+an alkanol) at 323.15 K II. Results for 2-methylpropan-1-ol, butan-2-ol, and 2-methylpropan-2-ol

R. Alonso, R. Guerrero, J.A. Corrales (1988) · The Journal of Chemical Thermodynamics

Cytowania: 9$ PaywallDOI ↗

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

Synoniemen

tert-Butanol · tert-Butyl alcohol · 75-65-0 · 2-Methyl-2-propanol · 2-Methylpropan-2-ol · t-Butanol · T-BUTYL ALCOHOL · 1,1-Dimethylethanol · Trimethylcarbinol · t-Butyl hydroxide · Trimethyl carbinol · Trimethyl methanol · Tertiary-Butyl Alcohol · Trimethylmethanol · Butanol tertiaire

Gegevensbronnen

📊 PubChem CID 6386 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Kopen in de winkel

Tert-Butanol →

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Tetraethylene Glycol CAS 112-60-7 · C8H18O5 Ethyl Methyl Carbonate CAS 623-53-0 · C4H8O3 Dimethylformamide CAS 68-12-2 · C3H7NO Isopropyl acetate CAS 108-21-4 · C5H10O2 Diethyl carbonate CAS 105-58-8 · C5H10O3 Acetic anhydride CAS 108-24-7 · C4H6O3