NAME: Selenium Hexafluoride (as Se)
IMIS: 2231
CAS: 7783-79-1
NIOSH: RTECS VS9450000
DOT: 2194 15
DESCRIPTION:
Colorless gas.
MW:
193
BP:
-31 F
VP:
>1 atm at 20
C
MP:
-38 F
Exposure Limits
OSHA GENERAL INDUSTRY PEL:
0.05 ppm, 0.4 mg/m3
OSHA CONSTRUCTION INDUSTRY PEL:
0.05 ppm, 0.4 mg/m3 TWA
ACGIH TLV:
0.05 ppm, 0.16 mg/m3 TWA
NIOSH REL: 0.05 ppm TWA
Health Factors
IARC:
Selenium and Selenium compounds - Group 3, not classifiable as to its
carcinogenicity to humans
SYMPTOM(s):
In animals: respiratory irritation, pulmonary edema
HEALTH EFFECTS:
Lung edema (HE11)
ORGAN:
None known in humans
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
Use MIRAN 1A & 1B or 103
NOTE:
PEL 0.05 ppm which is below the minimium detectable concentration of 0.07 ppm for the MIRAN. Therefore, the MIRAN is usable for screening purposes only.
SECONDARY SAMPLING/ANALYTICAL METHOD (SAM2):
DEVICE: Instrumentation
COMPANY: Infrared Spectrophotometer
PART #: MIRAN 1A & 1B
RANGE: 0.07 ppm @ 12.9 um
CLASS: Mfg
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