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 Tetrahydrofuran?

Tetrahydrofuran to związek chemiczny zarejestrowany pod numerem CAS 109-99-9. Wzór sumaryczny: C4H8O. Masa molowa: 72.11 g/mol. IUPAC: oxolane.

Jaki jest numer CAS Tetrahydrofuran?

Numer CAS dla Tetrahydrofuran to 109-99-9 — unikalny identyfikator Chemical Abstracts Service (CAS).

Jaki jest wzór sumaryczny Tetrahydrofuran?

Wzór sumaryczny: C4H8O. Masa molowa: 72.11 g/mol. logP (XLogP3): 0.5. PSA: 9.2 Å².

Gdzie można kupić Tetrahydrofuran?

Tetrahydrofuran jest dostępny w naszym sklepie. Zobacz produkt: https://epchems.online/products/tetrahydrofuran/

Skąd pochodzą dane chemiczne dla Tetrahydrofuran?

Dane chemiczne dla Tetrahydrofuran pochodzą z autorytatywnych źródeł: PubChem (NIH), ChEMBL (EBI). PubChem CID: 8028. Zgodne z Rozporządzeniem CLP (WE 1272/2008), dostępne na licencji CC-BY 4.0.

Tetrahydrofuran

CAS 109-99-9 · C₄H₈O · MW 72.11 g/mol

O związku Tetrahydrofuran

Tetrahydrofuran to związek chemiczny zarejestrowany pod numerem CAS 109-99-9 o wzorze sumarycznym C₄H₈O i masie molowej 72.11 g/mol.

Cząsteczka zawiera 13 atomów połączonych 13 wiązaniami chemicznymi. Pełna nazwa systematyczna IUPAC dla tego związku to oxolane. 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 = 9.2 Å², 0 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	C₄H₈O
Masa molowa	72.11 g/mol
IUPAC	oxolane
SMILES	`C1CCOC1`
InChIKey	`WYURNTSHIVDZCO-UHFFFAOYSA-N`
logP (XLogP3)	0.5
PSA	9.2 Å²
HBD / HBA	0 / 1
PubChem CID	CID 8028 ↗

Bezpieczeństwo GHS

Sygnał: Niebezpieczeństwo

GHS02

GHS07

GHS08

H225 — Wysoce łatwopalna ciecz i pary

H319 — Działa drażniąco na oczy

H335 — Może powodować podrażnienie dróg oddechowych

H351 — Podejrzewa się, że powoduje raka

EUH019 — Może tworzyć nadtlenki o właściwościach wybuchowych

Literatura naukowa

20 artykułów · 11 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

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Structure-activity relationship study of vitamin D analogs with oxolane group in their side chain.

et al. (2017)

Cytowania: 4Open AccessDOI ↗PubMed ↗PDF ↗

Diastereoselective synthesis of glutamate-appended oxolane rings: synthesis of (s)-(+)-lycoperdic acid.

(2007)

Cytowania: 9$ PaywallDOI ↗PubMed ↗

New method for determination of epichlorohydrin in epoxy-coated cans by oxolane derivatization and gas chromatography-mass spectrometry.

(2008)

Cytowania: 5$ PaywallDOI ↗PubMed ↗

Synthesis, crystal and solution structures and antimicrobial screening of palladium(II) complexes with 2-(phenylselanylmethyl)oxolane and 2-(phenylselanylmethyl)oxane as ligands.

et al. (2015)

Cytowania: 4$ PaywallDOI ↗PubMed ↗

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A New Meroditerpene and a New Tryptoquivaline Analog from the Algicolous Fungus Neosartorya takakii KUFC 7898

War War May Zin, Suradet Buttachon, Jamrearn Buaruang et al. (2015) · Marine Drugs

Cytowania: 37Open AccessDOI ↗PDF ↗

A new oxolane from Enterobacter cloacae.

et al. (2016)

Cytowania: 2$ PaywallDOI ↗PubMed ↗

Odisolane, a Novel Oxolane Derivative, and Antiangiogenic Constituents from the Fruits of Mulberry (Morus alba L.).

et al. (2016)

Cytowania: 21$ PaywallDOI ↗PubMed ↗

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Diastereoselective synthesis of 3-acetoxy-4-(3-aryloxiran-2-yl)azetidin-2-ones and their transformation into 3,4-oxolane-fused bicyclic β-lactams.

et al. (2016)

Cytowania: 4Open AccessDOI ↗PubMed ↗PDF ↗

Quantum chemical hydrogenolysis strategy for elimination of heteroatoms in biomass homologous organic compounds based on oxolane and thiolane.

et al. (2022)

$ PaywallDOI ↗PubMed ↗

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Phase Equilibria for 1,1,1,2,3,4,4,5,5,5-Decafluoropentane + 2-Methylfuran, 2-Methylfuran + Oxolane, and 1,1,1,2,3,4,4,5,5,5- Decafluoropentane + 2-Methylfuran + Oxolane at 35 kPa

Sonia Loras, Antonio Aucejo, Juan B. Montón et al. (2002) · Journal of Chemical & Engineering Data

Cytowania: 18Open AccessDOI ↗PDF ↗

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Isobaric Vapor-Liquid Equilibria and Densities for the Binary Systems Oxolane + Ethyl 1,1-Dimethylethyl Ether, Oxolane + 2-Propanol and Propan-2-One + Trichloromethane

Hugo Segura, Andrés Mejía, Ricardo Reich et al. (2003) · Physics and Chemistry of Liquids

Cytowania: 17Open AccessDOI ↗PDF ↗

NTP Toxicology and Carcinogenesis Studies of Tetrahydrofuran (CAS No. 109-99-9) in F344/N Rats and B6C3F1 Mice (Inhalation Studies).

(1998)

Cytowania: 6$ PaywallPubMed ↗

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Synthesis of New Pt(II) Complex Bearing Organoselenium Ligands and Evaluation of Cytotoxic Activity of Some Structurally Related Pd(II) Complexes

Ninko Radenković, Marina Kostić, Nataša Đorđević et al. (2020) · Macedonian Journal of Chemistry and Chemical Engineering

Cytowania: 4Open AccessDOI ↗PDF ↗

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Oxolane Ammonium Salts (Muscarine-Like)-Synthesis and Microbiological Activity.

Bogdanowicz P, Madaj J, Szweda P et al. (2024) · International journal of molecular sciences

Open AccessDOI ↗PubMed ↗PDF ↗

Esterified polyether fat mimetics containing ring-opened oxolane units

(1995)

$ Paywall

Electrochemical fluorination of several esters derived from oxolane-2-yl-carboxylic acid, oxolane-2-yl-methanol and oxane-2-yl-methanol

Takashi Abe, Masanori Tamura, Akira Sekiya (2005) · Journal of Fluorine Chemistry

Cytowania: 9$ PaywallDOI ↗

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Crystal structure of clofarabine (form I), C10H11ClFN5O3, from synchrotron power diffraction data and density functional theory calculations

Jacob K. Salazar, James A. Kaduk, Anja Dosen et al. (2026) · Acta Crystallographica Section E: Crystallographic Communications

Open AccessDOI ↗PDF ↗

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Crystal structure of (+)-N-[(1R,5S,6S,9S)-5-hydroxymethyl-3,3,9-trimethyl-8-oxo-2,4,7-trioxabicyclo[4.3.0]nonan-9-yl]acetamide

Takeshi Oishi, Shun Tsuzaki, Tomoya Sugai et al. (2016) · Acta Crystallographica Section E: Crystallographic Communications

Cytowania: 1Open AccessDOI ↗PDF ↗

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Resorcinol ninhydrin complex: 1,5,9-trihydroxy-8-oxatetracyclo[7.7.0.02,7.010,15]hexadeca-2,4,6,10(15),11,13-hexaen-16-one

B. Sridhar, T. Uma Devi, S. Priya et al. (2012) · Acta Crystallographica Section E

Cytowania: 1Open AccessDOI ↗PDF ↗

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Phase Equilibria in the Systems Oxolane + Vinyl Acetate, Oxolane + Ethyl 1,1-Dimethylethyl Ether and Vinyl Acetate + Ethyl 1,1-Dimethylethyl Ether

Jaime Wisniak, Hugo Segura (2000) · Physics and Chemistry of Liquids

Cytowania: 3Open AccessDOI ↗PDF ↗

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

Synonimy

TETRAHYDROFURAN · Oxolane · 109-99-9 · Furanidine · Furan, tetrahydro- · Tetramethylene oxide · Hydrofuran · Oxacyclopentane · 1,4-Epoxybutane · Tetrahydrofuranne · Tetraidrofurano · Tetrahydrofuraan · Cyclotetramethylene oxide · Agrisynth THF · Butane, 1,4-epoxy-

Data sources

📊 PubChem CID 8028 — NIH
🔬 NIST WebBook — spektroskopia
💊 ChEMBL — bioaktywność

Kup w sklepie

Tetrahydrofuran →

Powiązane molekuły

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