Agent Name

1,1-Difluoroethane

Alternative Name

Ethylidene difluoride

CAS Number

75-37-6

Formula

C2-H4-F2

Major Category

Solvents

Synonyms

Algofrene type 67; Difluoroethane; Dymel 152; Dymel 152A; Ethane, 1,1-difluoro-; Ethylene fluoride; Ethylidene difluoride; Ethylidene fluoride; FC 152a; Fluorocarbon 152a; Fr1030eon 152a; Genetron 100; Genetron 152a; HFC 152a; Halocarbon 152A; R 152a; Refrigerant 152a; [ChemIDplus] UN1030

Category

Chlorofluorocarbons

Description

Highly flammable, odorless gas shipped as a liquid under pressure; [CAMEO]

Sources/Uses

Used as a chemical intermediate, refrigerant, and propellant; [HSDB]

Comments

Liquefied gas can cause frostbite; Can displace air and cause asphyxiation; Hydrogen fluoride fumes may be released in a fire; [CAMEO] Causes narcosis at high concentrations; [Hawley] Halogenated alkanes are highly lipophilic; they cross the blood-brain barrier to produce CNS depression. [Klaassen, p. 726] Human volunteers were exposed to 500,000 ppm for several minutes; Impending loss of consciousness was reported; [AIHA]

Exposure Assessment
WEEL

1000 ppm

Lethal Concentration

LC50 (mice) = 977,000 mg/m3/2H

Adverse Effects
Neurotoxin

CNS Solvent Syndrome

Other Poison

Simple Asphyxiant

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: