Trimethyl phosphite

Trimethyl phosphite
Names
Preferred IUPAC name
Trimethyl phosphite[1]
Other names
Trimethoxyphosphine
Trimethoxyphosphane
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.004.065 Edit this at Wikidata
UNII
  • InChI=1S/C3H9O3P/c1-4-7(5-2)6-3/h1-3H3 checkY
    Key: CYTQBVOFDCPGCX-UHFFFAOYSA-N checkY
  • InChI=1/C3H9O3P/c1-4-7(5-2)6-3/h1-3H3
    Key: CYTQBVOFDCPGCX-UHFFFAOYAO
  • COP(OC)OC
Properties
C3H9O3P
Molar mass 124.08
Appearance colorless liquid
Odor distinctive, pungent[2]
Density 1.052
Melting point −78 °C (−108 °F; 195 K)
Boiling point 111 °C (232 °F; 384 K)
reacts[2]
Vapor pressure 24 mmHg (25°C)[2]
Hazards
Flash point 28 °C; 82 °F; 301 K[2]
NIOSH (US health exposure limits):
PEL (Permissible)
 none[2]
REL (Recommended)
 TWA 2 ppm (10 mg/m3)[2]
IDLH (Immediate danger)
 N.D.[2]
Related compounds
Related compounds
 Dimethyl methylphosphonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Trimethyl phosphite is an organophosphorus compound with the formula P(OCH3)3, often abbreviated P(OMe)3. It is a colorless liquid with a highly pungent odor. It is the simplest phosphite ester and finds used as a ligand in organometallic chemistry and as a reagent in organic synthesis. The molecule features a pyramidal phosphorus(III) center bound to three methoxy groups.

  1. ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 931. doi:10.1039/9781849733069-FP001 (inactive 2024-06-30). ISBN 978-0-85404-182-4.{{cite book}}: CS1 maint: DOI inactive as of June 2024 (link)
  2. ^ a b c d e f g NIOSH Pocket Guide to Chemical Hazards. "#0640". National Institute for Occupational Safety and Health (NIOSH).