Zinc dichloride
ZnCl2
Molecular mass: 136.3
ICSC # 1064
CAS # 7646-85-7
RTECS # ZH1400000
UN # 2331
EC # 030-003-00-2
Pi, Study (1st batch of chemical part), INSHT, Lodz 2001.
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/ Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
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IN ALL CASES CONSULT A DOCTOR!
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Inhalation
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Cough.
Sore throat.
Burning sensation.
Laboured breathing.
Shortness of breath.
Symptoms may be delayed (see Notes).
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Local exhaust or breathing protection.
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Fresh air, rest.
Half-upright position.
Artificial respiration may be needed.
Refer for medical attention.
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Skin
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Skin burns.
Pain.
Redness.
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Protective gloves.
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Rinse and then wash skin with water and soap.
Refer for medical attention.
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Eyes
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Pain.
Redness.
Severe deep burns.
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Safety goggles
or
eye protection in combination with breathing protection if powder.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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Ingestion
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Abdominal pain.
Burning sensation in the throat and chest.
Sore throat.
Nausea.
Vomiting.
Shock or collapse.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Do NOT induce vomiting.
Give plenty of water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
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Separated from
strong bases,
food and feedstuffs
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Dry.
Well closed.
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Do not transport with food and feedstuffs.
C symbol
N symbol
R: 22-34-50/53
S: 1/2-26-36/37/39-45-60-61
UN Hazard Class: 8
UN Packing Group: III
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Important Data
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Physical State; Appearance:
HYGROSCOPIC WHITE SOLID IN VARIOUS FORMS
Physical Dangers:
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/m3 as TWA; 2 mg/m3 as STEL; (ACGIH 2004).
MAK: (as fume) IIb (not established but data is available) (DFG 2004).
OSHA PEL: TWA 1 mg/m3
NIOSH REL: TWA 1 mg/m3 ST 2 mg/m3
NIOSH IDLH: 50 mg/m3 See: 7646857
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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
the skin.
The aerosol
is irritating to
the respiratory tract
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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.
Effects of Long-Term or Repeated Exposure:
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Physical Properties
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Boiling point: 732°C
Melting point: 290°C
Density: 2.9
g/cm3
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Solubility in water, g/100 ml at 25°C: 432
very good
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Environmental Data
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The substance is very toxic to aquatic organisms.
It is strongly advised that this substance does not enter the environment.
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N O T E S
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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.
Transport Emergency Card: TEC (R)-80GC2-II+III
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ADDITIONAL INFORMATION
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ICSC: 1064
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ZINC CHLORIDE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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