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Basic Information
CAS No.: 13445-50-6
Name: Diphosphane
Molecular Structure:
Molecular Structure of 13445-50-6 (Diphosphane)
Formula: H4P2
Molecular Weight: 65.98
Density: g/cm3
Melting Point: -99°C
Boiling Point: 58.5°Cat760mmHg
Flash Point: °C
Safety: Ignites spontaneously in air. A concentration of 0.2% will cause flammable gases to ignite. When heated to decomposition it emits toxic fumes of POx and phosphine. See also PHOSPHINE.
PSA: 27.18000
LogP: 0.65160
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Chemistry

IUPAC Name: Phosphanylphosphane
Synonyms of Diphosphane (CAS NO.13445-50-6) : Diphosphorus trihydride ; Diphosphane
InChI:InChI=1/H4P2/c1-2/h1-2H2
CAS NO:13445-50-6
Molecular Formula:H4P2
Molecular Weight :65.9793
Molecular Structure :
Enthalpy of Vaporization: 28.8 kJ/mol
Boiling Point: 58.5 °C at 760 mmHg
Vapour Pressure: 222 mmHg at 25°C

Production

 Diphosphane (CAS NO.13445-50-6) is produced by the hydrolysis of calcium monophosphide. According to an optimized procedure, hydrolysis of 400 g of CaP at -30 °C gives about 20 g of product, slightly contaminated with phosphine.

Safety Profile

Ignites spontaneously in air. A concentration of 0.2% will cause flammable gases to ignite. When Diphosphane (CAS NO.13445-50-6) is heated to decomposition, it emits toxic fumes of POx and phosphine. See also PHOSPHINE.

Specification

This colourless liquid is nonbasic, unstable at room temperature, and spontaneously flammable in air. It is only poorly soluble in water but dissolves in organic solvents.