Agent Name

Molybdenum tetrafluoride

CAS Number

23412-45-5

Formula

F4-Mo

Major Category

Metals

Category

Metals, Inorganic Compounds

Comments

See "Molybdenum." See "Molybdenum hexafluoride."

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

IDLH (NIOSH)

250 mg/m3, as F

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