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TETRADIFON ICSC: 0747
April 1997
4-Chlorophenyl 2,4,5-trichlorophenyl sulfone
1,2,4-Trichloro-5-((4-chlorophenyl)sulfonyl)-benzene
2,4,4',5-Tetrachlorodiphenyl sulfone

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CAS # 116-29-0 C 1 2H 6Cl 4O 2S / (C 6H 2Cl 3)OSO(C 6H 4Cl)
RTECS # WR5850000 Molecular mass: 356

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID /    FIRE FIGHTING   
FIRE Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.

Alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION Risk of fire and explosion if formulations contain flammable/explosive solvents.


EXPOSURE
PREVENT DISPERSION OF DUST!

Inhalation
Ventilation.

Skin
Protective gloves.
Rinse skin with plenty of water or shower.
Eyes Redness.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work. Wash hands before eating.
Refer for medical attention.

SPILLAGE DISPOSAL PACKAGING & LABELLING
Do NOT wash away into sewer. Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place.
UN Hazard Class
Do not transport with food and feedstuffs.

EMERGENCY RESPONSE STORAGE

Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs.

IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS.

CHEMICAL DANGERS:
The substance decomposes on heating and on burning producing toxic fumes including sulfur oxides, hydrogen chloride.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of dust.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the kidneys and liver.

PHYSICAL PROPERTIES
Melting point: 148-149°C
Relative density (water = 1): 1.5
Solubility in water, g/100 ml at 20°C: none
Vapour pressure, Pa at 20°C: <0.001
Octanol/water partition coefficient as log Pow: 4.6

ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms. Avoid release to the environment in circumstances different to normal use.

NOTES
If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s). Carrier solvents used in commercial formulations may change physical and toxicological properties. Acaroil TD, Acarvin, Agrex T-7.5, Akaritox, Aracnol K, Aredion, Mitifon, Mition, Polacaritox, Roztoczol, Roztozol, Tedion V-18, Tetradichlone, Tetranol V18 are trade names.

IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission

© IPCS 1999
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.


Updated by AS. Approved by EC. Last update: 10.10.2000.