NAME: 1,1-Dimethylhydrazine
SYNONYM(s):
Unsymmetrical Dimethylhydrazine; UDMH
IMIS: 0940
CAS: 57-14-7
NIOSH: RTECS MV2450000; 40542
DOT:
UN1163 Poison, Flammable Liquid, Corrosive
DESCRIPTION:
Fuming, colorless liquid with an amine-like odor.
MW:
60
BP:
146 F
VP:
103 mm
MP:
-71 F
INCOM:
Oxidizers, halogens, metallic mercury, fuming nitric acid,
hydrogen peroxide
Exposure Limits
OSHA GENERAL INDUSTRY PEL:
0.5 ppm, 1 mg/m3 (Skin)
OSHA CONSTRUCTION INDUSTRY PEL:
0.5 ppm, 1 mg/m3 TWA (Skin)
ACGIH TLV:
0.01 ppm TWA (Skin); Appendix A3 (Confirmed Animal Carcinogen with
Unknown Relevance to Humans)
NIOSH REL:
0.06 ppm Ceiling (120 min), Potential Carcinogen
Health Factors
IARC:
Group 2B, possibly carcinogenic to humans
SYMPTOM(s):
Eye, skin irritation; choking, chest pain, dyspnea; lethargy; nausea;
anoxia; convulsions; liver injury; (carcinogenic)
HEALTH EFFECTS:
Mutagen (HE2); CNS effects (HE8); Anemia (HE12)
ORGAN:
CNS, liver, gastrointestinal tract, blood, respiratory system, eyes,
skin
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
MEDIA:
Midget Fritted Glass Bubbler (MFGB) 15 mL 0.1N HCl
MAX V:
100 Liters MAX F:
1.0 L/min
ANL 1:
Colorimetric Analysis
REF:
1 (NIOSH S-143)
SAE:
0.10
CLASS:
Fully Validated
SECONDARY SAMPLING/ANALYTICAL METHOD (SAM2):
DEVICE: Detector Tube
COMPANY: MSA
PART #: 460425
RANGE: 0.5-50 ppm
CLASS: Mfg
DEVICE: Instrumentation
COMPANY: Infrared Spectrophotometer
PART #: MIRAN 1A & 1B
RANGE: 0.3 ppm @ 11.2 um
CLASS: Mfg
|
Back to Top
