Viscous yellow oil or
a crystalline mass. Used as an insecticide and acaricide on crops
to formation of highly toxic and flammable phosphine gas in the
presence of strong reducing agents such as hydrides.
Partial oxidation by oxidizing agents may result in
the release of toxic phosphorus oxides.
Signs and symptoms
pupils, blurred vision, headache, dizziness, profound weakness,
muscle spasms, seizures, and coma.
Mental confusion and
psychosis may occur.
nausea, vomiting, anorexia, diarrhoea, and abdominal pain may also
The heart rate may
decrease following oral exposure or increase following dermal
First Aid Measures
Vomiting may be
induced with syrup of Ipecac only if victims are alert. If elapsed
time since ingestion of formothion is unknown or suspected to be
greater than 30 minutes, do not induce vomiting.
Evaluate vital signs
including pulse and respiratory rate, and note any trauma. If not
breathing, provide artificial respiration. If breathing is laboured,
administer 100% humidified oxygen or other respiratory support.
clothing as soon as possible.
If eye exposure has
occurred, eyes must be flushed with lukewarm water for at least 15
Wash exposed skin
areas three times with soap and water.
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