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ZINC CHLORIDE
ICSC: 1064
Peer-Review Status: 03.05.2002 Validated
Zinc dichloride 
CAS #: 7646-85-7 RTECS #: ZH1400000
UN #: 2331
EC #: 030-003-00-2
EINECS #: 231-592-0
    Formula: ZnCl2
Molecular mass: 136.3

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Cough. Sore throat. Burning sensation. Laboured breathing. Shortness of breath. Symptoms may be delayed. See Notes.  Use local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin Skin burns. Pain. Redness.  Protective gloves.  Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes Pain. Redness. Severe deep burns.  Wear safety goggles or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Burning sensation in the throat and chest. Sore throat. Nausea. Vomiting. Shock or collapse.  Do not eat, drink, or smoke during work. Wash hands before eating.  Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: C, N; R: 22-34-50/53; S: (1/2)-26-36/37/39-45-60-61 
UN Classification
UN Hazard Class: 8; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-80GC2-II+III.  Separated from strong bases and food and feedstuffs. Dry. Well closed. 

IMPORTANT DATA
Physical State; Appearance
WHITE HYGROSCOPIC SOLID IN VARIOUS FORMS. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic fumes of hydrogen chloride and zinc oxide. The solution in water is a medium strong acid. 

Occupational exposure limits
TLV: 1 mg/m³ as TWA; 2 mg/m³ as STEL; (ACGIH 2004). 

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. 

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. 

Effects of short-term exposure
The substance is corrosive to the eyes and skin. The aerosol is irritating to the respiratory tract. Corrosive on ingestion. Inhalation of of fume may cause lung oedema. See Notes. Ingestion could cause effects on the pancreas. Acute exposure to high concentrations of zinc chloride fume can lead to Adult Respiratory Distress Syndrome leading to pulmonary fibrosis and death. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 732°C
Melting point: 290°C
Density: 2.9 g/cm³
Solubility in water, g/100ml at 25°C: 432 (very good) 
The substance is very toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment. 

NOTES
Other UN: 1840 Zinc chloride solution, Hazard Class 8.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation is therefore essential.
Card has been partly updated in October 2004 and 2005.
See sections Occupational Exposure Limits, EU classification, Emergency Response. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Zinc chloride (UKPID)