 Material Safety Data Sheet
of Chlorpyriphos Technical |
| IDENTIFICATION |
| Trade Name : Chlorpyriphos Technical |
| BIS No. : IS 8963 - 1978 |
| Active ingredient (s) (Common Name) : Chlorpyriphos Technical |
| CAS No. : 2921-88-2 |
| Application : Insecticide
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| PHYSICAL AND CHEMICAL DATA |
| Chlorpyriphos Technical : 94% W/W |
| Molecular Formula : C9H11C13NO3PS |
| Physical State (20 deg.C) : Crystalline Compound |
| Odour : Mild mercaptan |
| Melting Point : 42-43 deg.C |
| Density : 1.432 gm/cc at 50 deg.C |
| Behaviour in Water : The rate of hydrolysis in water increases with pH temperature. 50% Hydrol- ysis takes 1.5d (pH 8 at 25 deg.C) to 100d (Phosphate buffer at pH 7 and 15 deg. C). |
| pH : 6.5 - 7.5 (in 500 ppm hard water). Acidity as H2SO4 is 0.1 percent by mass, max. ------------------------------------------------------------------------------------------------------------- |
| FIRE AND EXPLOSION HAZARD DATA |
| Chlorpyriphos may burn, but does not readily ignite. Poisonous gases are produced in fire, including organic sulfides. Containers may explode in fire. Use dry chemical or Carbondioxide extinguishers.
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| STORAGE CONDITIONS AND HANDLING |
| Keep away from food stuffs, beverages and animal feed. Wash hands and exposed skin before eating, drinking, smoking and after work. Store in a cool, well ventilated area away from sources of heat. Keep the containers closed when not in use. Protective measure when handling bulk or spilled material: Use gloves, respirator, goggles. Handling spilled material: Absorb in sand or clay, shovel up into covered containers for disposal. Wash spilled area with an alkaline solution. Then flush with water. Shelf life (in an opened containers): at least 2 years Additional Information: When handling chlorpyriphos wear protective clothings & goggles. Avoid breathing vapour or inhaling directly. Handle in a well ventilated area. ------------------------------------------------------------------------------------------------------------- |
| TOXICOLOGY |
| Acute Oral LD50 male rat 163 mg/kg Acute Dermal LD50 male rat >2000 mg/kg Inhalation LC50 (4h) rat >0.2 mg/l Fish-tox. LC50 (96h) rainbowtrout 0.003 mg/l Additional Information Mild eye irritant Non sensitising. ------------------------------------------------------------------------------------------------------------- |
| EMERGENCY AND FIRST AID PROCEDURE |
| First Aid in case of Skin contact : Remove contaminated clothing. Wash with water and soap. Eye contact : Immediately remove any contact lenses and rinse with gently running water for 15 minutes, maintaining eyelids open. Seek medical attention. Inhalation : Remove from danger zone. Obtain Medical Advice. Ingestion : Vomiting may cause lung damage. If a physician is reachable within the next 15 minutes, contact him first. If vomiting is induced, victim has to be in head-down position. Give 1 or 2 glasses of water to drink rapidly, then introduce a finger gently into throat. Obtain medical assistance. In case of unconsciousness keep victim in lateral head-down position. Give 1 or 2 glasses of water to drink rapidly, then introduce a finger gently into throat. Obtain medical assistance. In case of unconsciousness keep victim in lateral head-down position, do not give anything by mouth and do not induce vomiting. ------------------------------------------------------------------------------------------------------------- |
| SYMPTOMS OF POISONING |
| Mild to moderate poisoning : Nausea, vomiting, abdominal pain. Contracted pupils, blurred vision. Salivation, lacrimation and sweating. Slowed pulse. Severe poisoning : Muscle fasciculations. Severe diahorea. Respiratory difficulty, cyanosis, coma, generalized convulsions. Cardiac arrest. Antidote : Atropine, only by injection is specific antidote, and artifical respiration may be needed. Do not induce vomiting if swallowed. Treat symptomatically and use antidote immediately. If poisoning occurs call a physician immediately. |