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MERCURIC CHLORIDEICSC: 0979
April 2014
CAS #: 7487-94-7Mercury dichloride
Mercury (II) chloride
UN #: 1624
EINECS #: 231-299-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.   

 AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED! Redness. Pain. Blisters. Skin burns.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower for at least 15 minutes. Refer for medical attention . 
Eyes Pain. Redness. Severe deep burns.  Wear face shield or eye protection in combination with breathing protection.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention. 
Ingestion Metallic taste. Sore throat. Burning sensation. Nausea. Abdominal pain. Vomiting. Diarrhoea. Shock or collapse.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Consult an expert! Personal protection: complete protective clothing. 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. 

According to UN GHS Criteria

skull;toxiccorrcancer;health hazenviro;aqua
DANGER
Fatal if swallowed or in contact with skin
Causes severe skin burns and eye damage
May cause an allergic skin reaction
Suspected of causing genetic defects
Suspected of damaging fertility or the unborn child
May cause damage to kidneys
Causes damage to the nervous system and the kidneys through prolonged or repeated exposure
Very toxic to aquatic life with long lasting effects 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 

STORAGE
Separated from food and feedstuffs, aluminium, copper, iron and zinc. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. Well closed. Keep in the dark. Store only in original container. 
PACKAGING
Do not transport with food and feedstuffs.
Severe marine pollutant. 
MERCURIC CHLORIDE ICSC: 0979
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALS OR POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating and under the influence of light. This produces toxic fumes of mercury and chlorine. Reacts with metals such as aluminium, copper, iron and zinc. 

Formula: HgCl2
Molecular mass: 271.5
Boiling point: 302°C
Melting point: 276°C
Density: 5.4 g/cm³
Solubility in water, g/l at 20°C: 69 (moderate)
Vapour pressure, Pa at 20°C: 0.1
Octanol/water partition coefficient as log Pow: 0.1  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is corrosive to the eyes and skin. The substance is irritating to the respiratory tract. The substance may cause effects on the gastrointestinal tract and kidneys. This may result in tissue lesions, kidney failure, collapse and death. Medical observation is indicated. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

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. This may result in ataxia, sensory and memory disturbances, tremors, muscle weakness and kidney impairment. The substance may have effects on male fertility. May cause heritable genetic damage to human germ cells. 


Occupational exposure limits
TLV: 0.025 mg/m3, ppm, as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued.
MAK: (as Hg, inhalable fraction): 0.02 mg/m3; peak limitation category: II(8); skin absorption (H); sensitization of skin (SH); carcinogen category: 3B; pregnancy risk group: D 

ENVIRONMENT
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. It is strongly advised not to let the chemical enter into the environment. 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T+, N; R: 28-34-48/24/25-62-68-50/53; S: (1/2)-26-36/37/39-45-60-61 

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    See Also:
       Toxicological Abbreviations