- Chevron orthene
- O,S-dimethyl acetyl phosphoramidothioate
A white solid.
Contact and systemic insecticide.
Registry Numbers and Inventories.
EC Index Number
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector
Swiss Giftliste 1
Melting point, °C
Vapor pressure, mmHg
1.35 g/cm3 (20 C)
Solubility in water
about 650 g/L at 20 C
Partition coefficient, pKow
Hazards and Protection.
Store at in a cool dry place.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate protective gloves, clothing and goggles.
Must wear a respirator with an activated-carbon gas filter cartridge affording protection for a determined number of working hours.
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Water spray, fog or regular foam.
Combustible material: may burn but does not ignite readily.
Containers may explode when heated.
When heated to decomp, can emit highly toxic fumes of oxides of phosphorous.
Headache, dizziness, muscle spasms and profound weakness are common. Alterations of level of consciousness, seizures and coma may occur. Seizures may be more common in children. Peripheral neuropathy of the mixed sensory-motor type may be delayed in onset by 6 to 21 days. Recovery may be slow or incomplete. Acephate was not teratogenic in rats and mice. <br>No data were available to assess the potential effects of exposure to this agent during pregnancy or lactation. <br>Sporadic reports of human birth defects related to organophosphates have not been fully verified.
Vomiting, diarrhea, fecal incontinence and abdominal pain may occur.
Acute respiratory insufficiency is the main cause of death in acute poisonings.
Sweating is a consistent but not universal sign.
Seek medical assistance.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
Immediately flush with running water for at least 20 minutes.
I; II; III