IPCS INCHEM Home
GERMANEICSC: 1244
June 2011
CAS #: 7782-65-2Germanium hydride
Germanium tetrahydride
UN #: 2192
EINECS #: 231-961-6

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Extremely flammable.  Gas/air mixtures are explosive.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting.  Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with carbon dioxide, dry powder.  In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position. 

 STRICT HYGIENE!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Headache. Weakness. Dizziness. Abdominal pain. Confusion. Dark urine. Symptoms may be delayed. See Notes.  Use closed system.  Fresh air, rest. Refer immediately for medical attention. 
Skin   Protective gloves.   
Eyes   Wear safety spectacles.   
Ingestion   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Remove all ignition sources. Consult an expert! Personal protection: self-contained breathing apparatus. Ventilation. 

According to UN GHS Criteria

flam;flamecylinder;gasskull;toxiccancer;health haz
DANGER
Extremely flammable gas
Contains gas under pressure; may explode if heated
Fatal if inhaled
May cause damage to blood if inhaled 

Transportation
UN Classification
UN Hazard Class: 2.3; UN Subsidiary Risks: 2.1 

STORAGE
Fireproof. 
PACKAGING
 
GERMANE ICSC: 1244
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS COMPRESSED GAS WITH PUNGENT ODOUR. 

Physical dangers
The gas is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
The substance may ignite spontaneously on contact with air. Heating may cause violent combustion or explosion. Reacts with halogens and oxidants. This generates fire and explosion hazard. 

Formula: GeH4
Molecular mass: 76.6
Boiling point: -88.5°C
Melting point: -165°C
Relative density (water = 1): 1.53
Solubility in water: none
Relative vapour density (air = 1): 2.65
Flash point: Flammable gas 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Effects of short-term exposure
The substance may cause effects on the blood. This may result in destruction of blood cells and kidney impairment. The effects may be delayed. Medical observation is indicated. Exposure far above the OEL could cause death. 

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment. 

Effects of long-term or repeated exposure
The substance may have effects on the blood. This may result in lesions of blood cells and anaemia. 


Occupational exposure limits
TLV: 0.2 ppm as TWA 

ENVIRONMENT
 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
The symptoms of hemolysis may become manifest after several hours 

ADDITIONAL INFORMATION
  EC Classification
 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations