NAME: 1,1,1,2-Tetrachloro-2,2-Difluoroethane
SYNONYM(s):
Refrigerant 112a; Halocarbon 112a;
2,2-Difluoro-,1,1,1,2-tetrachloroethane
IMIS: 2337
CAS: 76-11-9
NIOSH: RTECS KI1425000; 33588
DOT: UN1078 Refrigerant Gas, NOS
DESCRIPTION:
Colorless liquid or solid with a slight ether-like odor.
MW:
204
BP:
197 F
VP:
40 mm
MP:
105 F
INCOM:
Chemically active metals: sodium, potassium, beryllium, powdered
aluminum, zinc, magnesium
Exposure Limits
OSHA GENERAL INDUSTRY PEL:
500 ppm, 4170 mg/m3
OSHA CONSTRUCTION INDUSTRY PEL:
500 ppm, 4170 mg/m3 TWA
ACGIH TLV:
500 ppm, 4170 mg/m3 TWA
NIOSH REL: 500 ppm TWA
Health Factors
SYMPTOM(s):
CNS depression; pulmonary edema; eye, skin irritation; drowsiness;
dyspnea
HEALTH EFFECTS:
Irritation-Eyes, Skin---Mild (HE16); Narcosis (HE8)
ORGAN:
Respiratory system, skin
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
MEDIA:
Charcoal Tube (100/50 mg sections, 20/40 mesh)
ANL SOLVENT:
Carbon Disulfide
MAX V:
2 Liters MAX F:
0.035 L/min
ANL 1:
Gas Chromatography; GC/FID
REF:
1 (NIOSH 1016)
SAE:
0.11
CLASS:
Partially Validated
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