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Home/Compounds/Industrial Chemical/Phosphorus pentoxide
O5P2
141.94 g/mol
Industrial Chemical

PHOSPHORUS PENTOXIDE

CAS1314-56-3
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
Dehydrating agent and desiccant

Phosphorus pentoxide is a chemical compound that functions as a powerful dehydrating agent and desiccant. It is a phosphorus oxoanion derived from diphosphonic acid and is commonly used in industrial and laboratory settings for removing water from substances.

Dehydrating agent in chemical synthesisDesiccant for drying gases and solventsReagent in the production of phosphoric acid

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

ReferenceSame Category

Vanadium(V) oxide

CAS1314-62-1

Catalyst for oxidation and ceramics

ReferenceSame Category

Phosphorus pentasulfide

CAS1314-80-3

Manufacture of lubricant additives and pesticides

ReferenceSame Category

Zinc sulfide

CAS1314-98-3

pigment for paints and coatings

ReferenceSame Category

4-(Mercaptomethyl)-3,6-dithia-1,8-octanedithiol

CAS131538-00-6

crosslinking or polymer additive

Safety Reference

Regulatory Compliance1
  • CN Catalogue of Hazardous ChemicalsCNRegulation
    Listed· listed since 2015-05-01Source

Customs Tariff Classification

The international HS code for PHOSPHORUS PENTOXIDE (CAS 1314-56-3) is 2809.10.

HS code (international, 6-digit)

2809.10

EU CN code (8-digit)

2809 10 00

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
InChIKey

YWEUIGNSBFLMFL-UHFFFAOYSA-N

SMILES

O=P(=O)OP(=O)=O

Synonyms (8)
  • Diphosphorpentaoxid
  • PHOSPHORUS PENTOXIDE
  • Phosphorus (V) pentoxide
  • Phosphorus oxide (P2O5)
  • Phosphorus(V) oxide
  • diphosphonate
  • diphosphonate(2-)

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