ICSC 0580 - THIOMETON

THIOMETON	ICSC: 0580 (August 1997)
S-2-Ethylthioethyl O,O-dimethyl phosphorodithioate Phosphorodithioic acid, S-(2-(ethylthio)ethyl)O,O-dimethyl ester Dithiomethon

CAS #: 640-15-3

UN #: 3018

EC Number: 211-362-6

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion if formulations contain flammable/explosive solvents.	NO open flames.	Use water spray, powder, foam, carbon dioxide.

PREVENT GENERATION OF MISTS! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN! IN ALL CASES CONSULT A DOCTOR!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Dizziness. Sweating. Laboured breathing. Nausea. Pupillary constriction, muscle cramp, excessive salivation.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	MAY BE ABSORBED! Further see Inhalation.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .
Eyes		Wear safety spectacles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal cramps. Vomiting. Diarrhoea. Weakness. Muscle twitching. Convulsions. Unconsciousness. Further see Inhalation.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT wash away into sewer. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Keep in a well-ventilated room.
PACKAGING
Do not transport with food and feedstuffs.

THIOMETON

ICSC: 0580

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS OILY LIQUID WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Decomposes on heating and on burning. This produces toxic fumes including phosphorus oxides and sulfur oxides.	Formula: C₆H₁₅O₂PS₃ / (CH₃O)₂P(S)SCH₂CH₂SCH₂CH₃ Molecular mass: 246.3 Boiling point at O.013kPa: 110°C Relative density (water = 1): 1.2 Solubility in water, g/100ml at 25°C: 0.02 Vapour pressure, Pa at 20°C: 0.02 Relative vapour density (air = 1): 8.5 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00 Octanol/water partition coefficient as log Pow: 0.51

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS OILY LIQUID WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes including phosphorus oxides and sulfur oxides.

Formula: C₆H₁₅O₂PS₃ / (CH₃O)₂P(S)SCH₂CH₂SCH₂CH₃
Molecular mass: 246.3
Boiling point at O.013kPa: 110°C
Relative density (water = 1): 1.2
Solubility in water, g/100ml at 25°C: 0.02
Vapour pressure, Pa at 20°C: 0.02
Relative vapour density (air = 1): 8.5
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Octanol/water partition coefficient as log Pow: 0.51

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure The substance may cause effects on the nervous system. The effects may be delayed. Medical observation is indicated.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying. Effects of long-term or repeated exposure Repeated or prolonged contact with skin may cause dermatitis. Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance may cause effects on the nervous system. The effects may be delayed. Medical observation is indicated.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying.

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is toxic to aquatic organisms. This substance may be hazardous to the environment. Special attention should be given to bees. Avoid release to the environment in circumstances different to normal use.

NOTES
Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. 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.

NOTES

Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
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.

ADDITIONAL INFORMATION

EC Classification
Symbol: T; R: 21-25; S: (1/2)-36/37-45

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    See Also:
       Toxicological Abbreviations
       Thiometon (FAO/PL:1969/M/17/1)
       Thiometon (WHO Pesticide Residues Series 3)
       Thiometon (Pesticide residues in food: 1976 evaluations)
       Thiometon (Pesticide residues in food: 1979 evaluations)