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MERCUROUS CHLORIDE
ICSC: 0984
Peer-Review Status: 13.04.2000 Validated
Dimercury dichloride
Calomel 
CAS #: 10112-91-1 RTECS #: OV8740000
UN #: 3077
EC #: 080-003-00-1
EINECS #: 233-307-5
    Formula: Cl2Hg2
Molecular mass: 472.09

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   AVOID ALL CONTACT!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED! Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Diarrhoea. Vomiting. Metallic taste.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: P3 filter respirator for toxic particles. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT wash away into sewer.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Severe marine pollutant. 
EC Classification
Symbol: Xn, N; R: 22-36/37/38-50/53; S: (2)-13-24/25-46-60-61 
UN Classification
UN Hazard Class: 9; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-90G02.  Separated from food and feedstuffs. Keep in the dark. 

IMPORTANT DATA
Physical State; Appearance
WHITE CRYSTALLINE POWDER. 

Physical dangers
No data. 

Chemical dangers
Decomposes slowly under the influence of light. This produces mercuric chloride and mercury. 

Occupational exposure limits
TLV (as Hg): 0.025mg/m³ as TWA; (skin); A4 (not classifiable as a human carcinogen); (ACGIH 1999). 

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 eyes, skin and respiratory tract. 

Effects of long-term or repeated exposure
The substance may have effects on the central nervous system, kidneys and peripheral nervous system. This may result in ataxia, sensory and memory disturbances, fatigue, muscle weakness and kidney impairment. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Sublimation point: 400-500°C
Density: 7.15 g/cm³
Solubility in water at 25°C: none 
The substance is very toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment because it is persistent. Avoid release to the environment in circumstances different to normal use. 

NOTES
Do NOT take working clothes home.
Cyclosan, M-C Turf fungicide are trade names.
Depending on the degree of exposure, periodic medical examination is indicated. 

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