Phosphorothioic acid, O,O-dimethyl O-(3-methyl-4-(methylthio)phenyl) ester
|CAS #: 55-38-9|
| UN #: 3018
|EC Number: 200-231-9
|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.||NO open flames.||Use water spray, foam, powder, carbon dioxide.|
|PREVENT GENERATION OF MISTS! STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR!|
|Inhalation||Dizziness. Nausea. Vomiting. Sweating. Pupillary constriction, muscle cramp, excessive salivation. Laboured breathing. Convulsions. Unconsciousness.||Use ventilation, local exhaust or breathing protection.||Fresh air, rest. Refer immediately 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 . Wear protective gloves when administering first aid.|
|Eyes||Blurred vision.||Wear face shield 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. Diarrhoea. Nausea. Vomiting. Further see Inhalation. Pupillary constriction. Muscle cramps. Excessive salivation.||Do not eat, drink, or smoke during work. Wash hands before eating.||Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer immediately for medical attention.|
|SPILLAGE DISPOSAL||CLASSIFICATION & LABELLING|
|Personal protection: chemical protection suit, protective gloves and filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations.||
According to UN GHS Criteria
DANGERToxic if swallowed
Toxic in contact with skin
Causes damage to nervous system
Very toxic to aquatic life
|Separated from strong oxidants and food and feedstuffs. Well closed. Keep in a well-ventilated room. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.|
|Do not transport with food and feedstuffs.
Severe marine pollutant.
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
Formula: C10H15O3PS2 / (H3CO)2PSOC6H3(CH3)SCH3
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|OCCUPATIONAL EXPOSURE LIMITS|
TLV: 0.05 mg/m3, as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued.
MAK: (inhalable fraction): 0.2 mg/m3; peak limitation category: II(2); skin absorption (H)
|The substance is very toxic to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal.|
|The technical grade (95-98% pure) is a yellow to brown oil with a weak garlic-like odour.
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Do NOT take working clothes home.
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.
Symbol: T, N; R: 21/22-23-48/25-50/53-68; S: (1/2)-36/37-45-60-61
|All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.|
See Also: Toxicological Abbreviations Fenthion (WHO Pesticide Residues Series 1) Fenthion (WHO Pesticide Residues Series 5) Fenthion (Pesticide residues in food: 1977 evaluations) Fenthion (Pesticide residues in food: 1978 evaluations) Fenthion (Pesticide residues in food: 1979 evaluations) Fenthion (Pesticide residues in food: 1980 evaluations) Fenthion (Pesticide residues in food: 1983 evaluations) Fenthion (Pesticide residues in food: 1995 evaluations Part II Toxicological & Environmental) Fenthion (Pesticide residues in food: 1995 evaluations Part II Toxicological & Environmental) Fenthion (Pesticide residues in food: 1997 evaluations Part II Toxicological & Environmental)