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| TYPES OF HAZARD / EXPOSURE | ACUTE HAZARDS / SYMPTOMS | PREVENTION | FIRST AID / FIRE FIGHTING |
| FIRE |
Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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water spray. Dry powder. Carbon dioxide.
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| EXPLOSION |
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| EXPOSURE |
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PREVENT DISPERSION OF DUST!
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IN ALL CASES CONSULT A DOCTOR!
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| Inhalation |
Dizziness. Nausea. Sweating. Muscle twitching. Pupillary constriction, muscle cramp, excessive salivation. Laboured breathing. Convulsions. Unconsciousness.
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Local exhaust or breathing protection.
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Fresh air, rest. Artificial respiration may be needed. Refer immediately for medical attention.
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| Skin |
MAY BE ABSORBED! (see Inhalation).
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Protective gloves. Protective clothing.
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Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer immediately for medical attention. Wear protective gloves when administering first aid.
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| Eyes |
Blurred vision.
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Face shield or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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| Ingestion |
Abdominal cramps. Diarrhoea. Vomiting. (Further see Inhalation).
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Do not eat, drink, or smoke during work. Wash hands before eating.
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Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer immediately for medical attention.
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| SPILLAGE DISPOSAL | PACKAGING & LABELLING | |||||||
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Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. Carefully collect remainder, then remove to safe place.
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Do not transport with food and feedstuffs. Marine pollutant. EU Classification Symbol: T+, N R: 21-28-50/53 S: (1/2-)22-28-36/37-45-60-61 UN Classification UN Hazard Class: 6.1 UN Pack Group: II GHS Classification Danger Fatal if swallowed Fatal in contact with skin Fatal if inhaled Causes damage to nervous system Very toxic to aquatic life | |||||||
| EMERGENCY RESPONSE | STORAGE | |||||||
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Transport Emergency Card: TEC (R)-(61GT7-II)
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Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed. Store in an area without drain or sewer access.
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| IMPORTANT DATA | |||
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PHYSICAL STATE; APPEARANCE: COLOURLESS CRYSTALS CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. |
ROUTES OF EXPOSURE: The substance can be absorbed into the body in hazardous amounts by inhalation, through the skin and by ingestion. INHALATION RISK: A harmful concentration of airborne particles can be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: Cholinesterase inhibition. The substance may cause effects on the nervous system , resulting in convulsions and respiratory depression. Exposure may result in death. The effects may be delayed. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Cholinesterase inhibitor; cumulative effect is possible: see acute hazards/symptoms. | ||
| PHYSICAL PROPERTIES | |||
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Melting point: 39°C Density: 1.5 g/cm³ Solubility in water, g/100 ml at 20°C: 0.0187 Vapour pressure, kPa at 20°C: negligible |
Flash point: 100°C Octanol/water partition coefficient as log Pow: 2.2 | ||
| ENVIRONMENTAL DATA | |||
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The substance is very toxic to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.
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| NOTES | |||
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Carrier solvents used in commercial formulations may change physical and toxicological properties. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Do NOT take working clothes home. Card has been partially updated in January 2008: see GHS classification.
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| ADDITIONAL INFORMATION | |||
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| © IPCS, CEC 2005 | |||
See Also:
Toxicological Abbreviations
Methidathion (WHO Pesticide Residues Series 2)
Methidathion (WHO Pesticide Residues Series 5)
Methidathion (Pesticide residues in food: 1979 evaluations)
Methidathion (Pesticide residues in food: 1992 evaluations Part II Toxicology)
Methidathion (Pesticide residues in food: 1997 evaluations Part II Toxicological & Environmental)