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fluoromethane

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начало: Китай

Кас Но: 593-53-3

Спецификация: 99%наименьший

минимальный объем заказа: 1 /kg

снабженческая способность: 50 mt/month

опережающий период: OEM 7 дней, пятно 3 дня

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CAS No.: 593-53-3 Formula: CH3F Molecular Weight: 34.03290

Description

Fluoromethane, also known as methyl fluoride, Freon 41, Halocarbon-41 and HFC-41, is a non-toxic, liquefiable, and flammable gas at standard temperature and pressure. It is made of carbon, hydrogen, and fluorine. The name stems from the fact that it is methane (CH4) with a fluorine atom substituted for one of the hydrogen atoms.
The compound is the lowest mass member of the hydrofluorocarbon (HFC) family, compounds which contain only hydrogen, fluorine, and carbon. These are related to the Chlorofluorocarbon (CFC)s, but since they do not contain chlorine, are not destructive to the ozone layer.
It is used in the manufacture of semiconductor and electronic products. In the presence of an RF field fluoromethane will dissociate into fluoride ions that selectively etch silicon compound films (reactive-ion etching).
Fluoromethane has an agreeable ether-like odor and is also narcotic in high concentrations. Fluoromethane is highly flammable and burns in air with evolution of highly toxic hydrogen fluoride. The flame is colorless, similar to alcohol.
Bond energy of C-F is 552 kJ/mol and its length is 0.139 nm (typically 0.14 nm). Its molecular geometry is tetrahedral.
Its specific heat capacity is Cp = 38.171 J.mol−1.K−1 at 25°C. Critical point of fluoromethane is at 44.9°C (318.1 K) and 6.280 MPa.

Basic Info

Chemical Name	fluoromethane
Synonyms	fluorene-3-carboxylic acid methyl ester; methyl ester of fluoren-3-ylcarboxylic acid; methyl fluorene-3-carboxylate; METHYL FLUORIDE; 9H-Fluorene-3-carboxylic acid,methyl ester; Methane, fluoro-; Fluoren-3-carbonsaeure-methylester;
CAS No.	593-53-3
Molecular Formula	CH3F
Molecular Weight	34.03290
PSA	0.00000
LogP	0.58570

Properties

Appearance & Physical State	colourless gas with an ether-like odour
Density	0.877 g/cm3
Boiling Point	-79ºC
Melting Point	-115ºC
Refractive Index	1.212
Stability	Stable. Extremely flammable. Incompatible with strong oxidizing agents.

Safety Info

Hazard Class	2.1
RIDADR	UN 2454
Risk Statements	R12
Hazard Codes	F+

Synthesis Route

Dimethyl((trimethylsilyl)methyl)oxonium Tetrafluoroborate→fluoromethane+Dimethyl ether
dibromo(fluoro)methane→fluoromethane+bromo(fluoro)methane
dibromo(fluoro)methane+Ethanol→fluoromethane+bromo(fluoro)methane

GC Analysis