Molybdenum hexafluoride
Agent Name
Molybdenum hexafluoride
CAS Number
7783-77-9
Formula
F6-Mo
Major Category
Metals
Synonyms
Molybdenum fluoride (MoF6), (OC-6-11)-; [ChemIDplus] Molybdenum (VI) fluoride; UN3289; [Alfa Aesar]
Category
Metals, Inorganic Compounds
Description
White volatile solid; Very hygroscopic; Hydrolyzed by water; Evolves blue-white clouds in moist air; [Merck Index] Light yellow liquid; Melting point = 17.5 deg C; [MSDSonline]
Sources/Uses
Used to separate molybdenum isotopes; [Hawley]
Comments
Reacts with water evolving toxic gases; A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline] See "Molybdenum." See "FLUORIDES."
Biomedical References
Exposure Assessment
BEI
Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)
TLV (ACGIH)
2.5 mg/m3, as F 0.5 mg/m3, respirable fraction, as Mo)
PEL (OSHA)
2.5 mg/m3, as F (5 mg/m3 as Mo)
MAK
1 mg/m3, inhalable fraction, as F
Lethal Concentration
LC50 (rat) = 333 mg/m3
Explanatory Notes
ERG Guide is for "Toxic liquid, corrosive, inorganic, n.o.s." For TLV, see "Molybdenum and compounds."
Adverse Effects
Toxic Pneumonitis
Yes
Dermatotoxin
Skin burns
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.