Agent Name

Germanium tetrafluoride

CAS Number

7783-58-6

Formula

F4-Ge

Major Category

Toxic Gases & Vapors

Synonyms

Germane, tetrafluoro-; Tetrafluorogermane; [ChemIDplus] Germanium fluoride; Germanium (IV) fluoride; Germyl tetrafluoride; [Matheson Tri-Gas MSDS] UN3304

Category

Corrosive Gases

Description

Colorless gas with an odor of garlic; [Merck Index] Fumes white in air; Pungent odor of garlic; [Matheson Tri-Gas MSDS]

Sources/Uses

Used with disilane to synthesize silicon-germanium, a semiconductor material; [Wikipedia]

Comments

A strong skin, eye, lung, and mucous membrane irritant; [Merck Index] May react with water producing toxic and corrosive gases; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; Release of compressed gas may cause frostbite; Prolonged or repeated exposure may cause kidney and skeletal system injury; [Matheson Tri-Gas MSDS] See "Silicon tetrafluoride."

Exposure Assessment
BEI

Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)

TIH

Yes

TLV (ACGIH)

2.5 mg/m3, as F

PEL (OSHA)

2.5 mg/m3, as F

MAK

1 mg/m3, inhalable fraction, as F

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Compressed gas, toxic, corrosive, n.o.s."

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: