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MERCUROUS CHLORIDE ICSC: 0984
Date of peer-review: April 2000

Dimercury dichloride
Calomel
CAS # 10112-91-1 Cl2Hg2
RTECS # OV8740000 Molecular mass: 472.09
UN # 3077
EC # 080-003-00-1
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible.

In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION


EXPOSURE
AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
Inhalation Cough. Sore throat.
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.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (Extra personal protection: P3 filter respirator for toxic particles). 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.
EU 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
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-90G02
Separated from food and feedstuffs. Keep in the dark.
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 2001

SEE IMPORTANT INFORMATION ON BACK


MERCUROUS CHLORIDE ICSC: 0984
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE CRYSTALLINE POWDER.

CHEMICAL DANGERS:
The substance decomposes slowly under influence of light producing mercuric chloride and mercury.

OCCUPATIONAL EXPOSURE LIMITS:
TLV (as Hg): 0.025 mg/m^3 (skin) A4 (ACGIH 1999). MAK as Hg: 0.1 mg/m^3; BAT 25 ug/l in blood; 100 ug/l in urine (1999) MAK as Hg STEL: 1 mg/m^3; (1999) MAK: class Sh (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 irritates the eyes, the skin and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the central nervous system, kidneys and peripheral nervous system, resulting in ataxia, sensory and memory disturbances, fatigue, muscle weakness and kidney impairment.
PHYSICAL PROPERTIES
Sublimation point: 400-500°C
Density: 7.15 g/cm^3
Solubility in water, g/100 ml at 25°C: none
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment because it persists in the environment. 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


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
© IPCS, CEC 2001


    See Also:
       Toxicological Abbreviations