Trimethyl phosphite
Synonyms & Trade Names
Methyl phosphite, Trimethoxyphosphine, Trimethyl ester of phosphorous acidPhysical Description
Colorless liquid with a distinctive, pungent odor.Molecular Weight
124.1Boiling Point
232°FFreezing Point
-108°FSolubility
ReactsVapor Pressure
(77°F): 24 mmHgIonization Potential
?Specific Gravity
1.05Flash Point
82°FUpper Exposive Limit
?Lower Explosive Limit
?
Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.
Incompatibilities & Reactivities
Magnesium perchlorate, water [Note: Reacts (hydrolyzes) with water.]Exposure Routes
inhalation, ingestion, skin and/or eye contactSymptoms
irritation eyes, skin, upper respiratory system; dermatitis; In Animals: teratogenic effectsTarget Organs
Eyes, skin, respiratory system, reproductive systemPersonal Protection/Sanitation
(See protection codes)Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet (flammable)
Change:No recommendation
Provide:Quick drench
First Aid
(See procedures)Eye:Irrigate immediately
Skin:Soap flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations
Not available.
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division