Main page (Russian) Search in database (English)

Properties of substance:

potassium metaphosphate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

Empirical formula (Hill's system for organic substances):

KO3P

Structural formula as text:

KPO3

Molar/atomic mass: 118.07

Melting point (°C):

813

Boiling point (°C):

1320

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 0.0041 (25°C) [Ref.]

Hygroscopic:

yes

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-1246 (s)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

108.1 (s)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

90.2 (s)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

18.4

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 132-133 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru