Agent Name

1,1,1,2-Tetrafluoroethane

Alternative Name

Norflurane

CAS Number

811-97-2

Formula

C2-H2-F4

Major Category

Solvents

Synonyms

1,1,1,2-Tetrafluorethan; 1,1,1,2-Tetrafluoroethane; 1,2,2,2-Tetrafluoroethane; Arcton 134a; F 134a; FC 134a; Fron 134a; HCFC 134a; HFA 134a; HFC 134a; Khladon 134a; Norflurane; Norflurano [INN-Spanish]; Norfluranum [INN-Latin]; R 134a; Refrigerant R134a; TG 134a; [ChemIDplus] UN3159

Category

Chlorofluorocarbons

Description

Compressed liquefied gas; [ICSC] Slight ethereal odor; [CAMEO]

Sources/Uses

Used as a refrigerant, pharmaceutical propellant, and blowing agent for foams; [Merck Index #4714] Used to replace dichlorodifluoromethane as a refrigerant; [HSDB]

Comments

Evaporating liquid can cause frostbite; Inhalation of high concentrations can cause CNS depression and cardiac arrhythmias; [ICSC]

Exposure Assessment
MAK

1000 ppm

WEEL

1000 ppm

Lethal Concentration

LC50 (rat) >500,000 ppm/4H; [Merck Index]

Explanatory Notes

bp = -26.15 deg C; [Merck Index]

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

Search TOXNET

Chemical Information

Search ChemIDplus

Biomedical References

Search PubMed

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: