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.

Co to jest Tert-Butanol?

Tert-Butanol to związek chemiczny zarejestrowany pod numerem CAS 75-65-0. Wzór sumaryczny: C4H10O. Masa molowa: 74.12 g/mol. IUPAC: 2-methylpropan-2-ol.

Jaki jest numer CAS Tert-Butanol?

Numer CAS dla Tert-Butanol to 75-65-0 — unikalny identyfikator Chemical Abstracts Service (CAS).

Jaki jest wzór sumaryczny Tert-Butanol?

Wzór sumaryczny: C4H10O. Masa molowa: 74.12 g/mol. logP (XLogP3): 0.5. PSA: 20.2 Å².

Gdzie można kupić Tert-Butanol?

Tert-Butanol jest dostępny w naszym sklepie. Zobacz produkt: https://epchems.online/products/tert-butanol/

Skąd pochodzą dane chemiczne dla Tert-Butanol?

Dane chemiczne dla Tert-Butanol pochodzą z autorytatywnych źródeł: PubChem (NIH), ChEMBL (EBI). PubChem CID: 6386. Zgodne z Rozporządzeniem CLP (WE 1272/2008), dostępne na licencji CC-BY 4.0.

Tert-Butanol

CAS 75-65-0 · C₄H₁₀O · MW 74.12 g/mol

O związku Tert-Butanol

Tert-Butanol to związek chemiczny zarejestrowany pod numerem CAS 75-65-0 o wzorze sumarycznym C₄H₁₀O i masie molowej 74.12 g/mol.

Cząsteczka zawiera 15 atomów połączonych 14 wiązaniami chemicznymi. Pełna nazwa systematyczna IUPAC dla tego związku to 2-methylpropan-2-ol. Powyższy interaktywny model 3D pozwala obejrzeć układ przestrzenny atomów — można go obracać myszką, powiększać scrollem oraz przełączać między trybami wizualizacji szkieletowy / Ball & Stick / Space Fill.

Pod względem właściwości fizykochemicznych współczynnik podziału logP = 0.5 (wartość dodatnia, związek lipofilowy), powierzchnia polarna PSA = 20.2 Å², 1 donorów i 1 akceptorów wiązań wodorowych. Te parametry są kluczowe przy ocenie biodostępności i interakcji z biomolekułami.

Dane chemiczne dla tego związku pochodzą z PubChem (NIH NLM NCBI), jednej z największych baz związków chemicznych na świecie. Wszystkie informacje są aktualizowane automatycznie i wzbogacone o tłumaczenia zwrotów GHS zgodne z Rozporządzeniem CLP (1272/2008/WE). Powyższy widget można używać do celów edukacyjnych, badawczych i komercyjnych.

Właściwości fizykochemiczne

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 ↗

Bezpieczeństwo GHS

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

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.

Synonimy

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

Data sources

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

Kup w sklepie

Tert-Butanol →

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