Chemical Properties of Phosphorous acid, trimethyl ester (CAS 121-45-9)

Phosphorous acid, trimethyl ester

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InChI Key
Molecular Weight1
Other Names
  • Methyl phosphite ((MeO)3P)
  • NSC 6513
  • P(OCH3)3
  • Phosphorous acid, trimethyl ester
  • Trimethoxyfosfin
  • Trimethoxyphosphine
  • Trimethyl ester of phosphorous acid
  • Trimethylfosfit
  • UN 2329

Physical Properties

Property Value Unit Source
PAff 929.70 kJ/mol NIST
BasG 899.90 kJ/mol NIST
IE [8.40; 9.40] eV Show Hide
IE 8.40 eV NIST
IE 8.40 eV NIST
IE 8.50 eV NIST
IE 9.21 eV NIST
IE 8.40 eV NIST
IE 9.00 ± 0.05 eV NIST
IE 8.92 eV NIST
IE 9.25 eV NIST
IE 9.30 eV NIST
IE 9.22 eV NIST
IE 9.40 eV NIST
IE 9.00 eV NIST
logPoct/wat 1.15 Crippen Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
ΔvapH 42.50 kJ/mol 322.0 NIST
ΔvapH 32.80 kJ/mol 458.0 NIST

Similar Compounds

Phosphoric acid, trimethyl ester. Phosphorous acid, triethyl ester. o,o',o''-Trimethyl thiophosphate. Dimethyl phosphonate. Phosphonic acid, dimethyl ester. Tripropyl phosphite. Phosphorous acid, tris(1-methylethyl) ester. Tri-n-butyl phosphite. H3PO3. Triethyl phosphate. Di-tert-butyl hydrogen phosphate. Phosphonic acid, diethyl ester. Phosphorous acid, tridecyl ester. Phosphorochloridous acid, diethyl ester. Tripropyl phosphate.

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