Mercury dichloride
Mercury (II) chloride
HgCl2
Molecular mass: 271.5
ICSC # 0979
CAS # 7487-94-7
RTECS # OV9100000
UN # 1624
EC # 080-010-00-X
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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: all extinguishing agents allowed.
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Explosion
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Exposure
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AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Cough.
Sore throat.
Burning sensation.
Shortness of breath.
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Local exhaust or breathing protection.
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Fresh air, rest.
Half-upright position.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
Redness.
Pain.
Blisters.
Skin burns.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Pain.
Redness.
Blurred vision.
Severe deep burns.
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Face shield,
or eye protection in combination with breathing protection.
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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 cramps.
Abdominal pain.
Burning sensation.
Metallic taste.
Diarrhoea.
Nausea.
Sore throat.
Vomiting.
Shock or collapse.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Give a slurry of activated charcoal in 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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Do NOT wash away into sewer.
Sweep spilled substance into containers.
Carefully collect remainder,
then remove to safe place.
Do NOT let this chemical enter the environment.
(Extra personal protection: chemical protection suit including self-contained breathing apparatus.)
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Separated from
food and feedstuffs
, light
metals
.
Store in an area without drain or sewer access.
Provision to contain effluent from fire extinguishing.
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Do not transport with food and feedstuffs.
Severe marine pollutant.
T+ symbol
N symbol
R: 28-34-48/24/25-50/53
S: 1/2-36/37/39-45-60-61
UN Hazard Class: 6.1
UN Packing Group: II
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Important Data
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Physical State; Appearance:
WHITE
CRYSTALS
OR POWDER.
Physical Dangers:
Chemical Dangers:
The substance decomposes
due to heating
producing
toxic fumes
of mercury and
chlorine fumes
.
Reacts
with
light
metals
.
Occupational Exposure Limits:
TLV: (as Hg) 0.025 mg/m3 as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued (ACGIH 2008).
MAK: (as Hg) 0.1 mg/m3
Peak limitation category: II(8);
sensitization of skin (Sh);
Carcinogen category: 3B; BAT issued;
(DFG 2008).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol,
through the skin
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
Effects of Short-Term Exposure:
The substance
is irritating to
the respiratory tract
and
is corrosive to
the eyes
and
the skin.
Corrosive on ingestion.
The substance may cause effects on the
gastrointestinal tract
and
kidneys
, resulting in
tissue lesions
,
kidney failure, collapse and death.
Medical observation is indicated.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
The substance may have effects on the
central nervous system
,
peripheral nervous system
and
kidneys
, resulting in ataxia, sensory and memory disturbances, fatigue, muscle weakness and
kidney impairment
.
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Physical
Properties
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Boiling point: 302°C
Melting point: 276°C
Density: 6.5
g/cm3
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Solubility in water, g/100 ml at 20°C: 7.4
Vapour pressure, Pa at 20°C: 0.1
Octanol/water partition coefficient as log Pow: 0.1
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Environmental
Data
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The substance is very toxic to aquatic organisms.
Bioaccumulation of this chemical may occur along the food chain, for example in aquatic organisms.
The substance may cause long-term effects in the aquatic environment.
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N O T E S
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Depending on the degree of exposure, periodic medical examination is indicated.
Do NOT take working clothes home.
Transport Emergency Card: TEC (R)-61GT5-II
Card has been partially updated in November 2008: see Occupational Exposure Limits,
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ADDITIONAL INFORMATION
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ICSC: 0979
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MERCURIC 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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