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Phosphorus Trioxide

Phosphorus Trioxide / CAS : 1314-24-5

Appearance colorless monoclinic crystals or liquid UN 2578
HS 29420000 DG Class 8
Synonyms Phosphorous Anhydride; Diphosphorus Trioxide; Phosphorus Trioxide;; Phosphorus Oxide (P2O3); Diphosphortrioxid;; Phosphorous Trioxide
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Properties

Summary

Formula
O3P
Molecular Mass
145.976282
Exact Mass
78.95850
PSA
51.21000
Logp
0.50480
SMILES
O=POP=O

Attribute classification

Matter Classification
inorganic
Category
Inorganic Chemicals > Oxides And Peroxides

Chemical and Physical Properties

Melting Point
23.8ºC
Density
d421 2.135
Boiling Point
bp 173.1° in nitrogen atm
Appearance
colorless monoclinic crystals or liquid

Export information

HS Code
29420000
Export Rebate
13%
UN No.
2578
DG-Class
8
Risk Code
R36/37/38
Safety Label
Xi

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