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ZINC CHLORIDE ICSC: 1064
Date of Peer Review: March 2002

Zinc dichloride
CAS # 7646-85-7 ZnCl2
RTECS # ZH1400000 Molecular mass: 136.3
UN # 2331
EC Index # 030-003-00-2
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).
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.
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 take to a doctor.
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 plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P3 filter respirator for toxic particles. Do NOT let this chemical enter the environment. Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place.
Do not transport with food and feedstuffs.
EU 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
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-80GC2-II+III
Separated from strong bases, food and feedstuffs. Dry. Well closed.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
ZINC CHLORIDE ICSC: 1064
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
HYGROSCOPIC WHITE SOLID IN VARIOUS FORMS

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes of hydrogen chloride and zinc oxide. The solution in water is a medium strong acid.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as fume) 1 mg/m as TWA; 2 mg/m as STEL; (ACGIH 2004).
MAK: (as fume) IIb (not established but data is available) (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
Evaporation at 20C 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 the skin. The aerosol is irritating to the respiratory tract. Corrosive on ingestion. Inhalation of fume of this substance may cause lung oedema (see Notes). The substance may cause effects on the pancreas, if ingested. Acute exposure to high concentrations of zinc chloride fume can lead to Adult Respiratory Distress Syndrome leading to pulmonary fibrosis and death.

PHYSICAL PROPERTIES
Boiling point: 732C
Melting point: 290C
Density: 2.9 g/cm
Solubility in water, g/100 ml at 25C: 432 very good
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms. It is strongly advised that this substance does not enter 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


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IPCS, CEC 2005