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PHENYLMERCURIC ACETATE
ICSC: 0540
Peer-Review Status: 04.12.2000 Validated
Phenylmercury(II) acetate
Phenylmercury acetate
Acetoxyphenylmercury
PMA 
CAS #: 62-38-4 RTECS #: OV6475000
UN #: 1674
EC #: 080-011-00-5
EINECS #: 200-532-5
    Formula: C8H8HgO2 / CH3COOHgC6H5
Molecular mass: 336.7

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking.  Use water spray, powder, foam, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust.   
 
EXPOSURE   STRICT HYGIENE!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Cough. Headache. Laboured breathing. Shortness of breath. Sore throat. Burning sensation.  Use ventilation (not if powder), local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Refer for medical attention. 
Skin MAY BE ABSORBED! Redness. Skin burns. Pain. Blisters.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes Redness. Pain. Blurred vision. Severe deep burns.  Wear face shield or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Burning sensation. Diarrhoea. Nausea. Shock or collapse. Vomiting.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Remove all ignition sources. Then store and dispose of according to local regulations. If appropriate, moisten first to prevent dusting.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Severe marine pollutant. 
EC Classification
Symbol: T, N; R: 25-34-48/24/25-50/53; S: (1/2)-23-24/25-37-45-60-61 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61G63B.
NFPA Code: H3; F1; R0. 
Separated from oxidants and food and feedstuffs. Cool. Dry. Well closed. Keep in a well-ventilated room. 

IMPORTANT DATA
Physical State; Appearance
ODOURLESS HYGROSCOPIC WHITE OR WHITE-YELLOW CRYSTALLINE POWDER. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Decomposes on burning. This produces toxic vapours of mercury and mercury oxides. Reacts with strong oxidants. 

Occupational exposure limits
TLV (as Hg): 0.1mg/m³ as TWA; (skin); (ACGIH 1999).
MAK: Carcinogen category: 3B; Skin absorption (H); Sensitization of skin (SH); (DFG 2006). 

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 on spraying. 

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. The substance may cause effects on the kidneys. This may result in renal failure. The effects may be delayed. See Notes. 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 nervous system and kidneys. This may result in nervous disturbance and kidney impairment. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 148-153°C
Solubility in water, g/100ml at 20°C: 0.44
Vapour pressure, Pa at 25°C: 0.016
Relative vapour density (air = 1): 11.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1
Flash point: 37.8°C c.c. 
The substance is very toxic to aquatic organisms. This substance may be hazardous to the environment. Special attention should be given to water quality and soil contamination. Bioaccumulation of this chemical may occur in fish, crustacea and birds. Avoid release to the environment in circumstances different to normal use. 

NOTES
Explosive limits are unknown in literature, although the substance is combustible and has a flash point < 55°C.
The symptoms of renal failure do not become manifest until a few hours have passed.
Depending on the degree of exposure, periodic medical examination is indicated.
Do NOT take working clothes home.
Cerosol, Cosan, Gallotox, Liquiphene, Mersolite, Nylmerate, Riogen, Scutl, Tag Fungicide, Tag-HL-331 are trade names.
Card has been partially updated in August 2007: see Occupational Exposure Limits. 

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
       Phenylmercuric Acetate (FAO Meeting Report PL/1965/10/1)