13840-40-9

Basic information

• Product Name: PHOSPHINEOXIDE
• Synonyms: PHOSPHINEOXIDE
• CAS NO: 13840-40-9
• Molecular Formula: H₃OP
• Molecular Weight: 47.98
• Mol File: 13840-40-9.mol
• Article Data: 3

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: PHOSPHINEOXIDE(CAS DataBase Reference)
• NIST Chemistry Reference: PHOSPHINEOXIDE(13840-40-9)
• EPA Substance Registry System: PHOSPHINEOXIDE(13840-40-9)

Safety Data

• Hazardous Substances Data: 13840-40-9(Hazardous Substances Data)

Usage

InChI:InChI=1/HOP/c1-2/h2H

Upstream product

• 12185-10-3 phosphorous 
• 7732-18-5 water 
• 100320-09-0 phosphorous 
• 7429-90-5 aluminium 
• 7440-31-5 tin 
• 7647-01-0 hydrogenchloride 

Downstream Products

• 7803-51-2 phosphan 
• 6303-21-5 hypophosphorous acid 

Relevant articles and documents

Experimental evidence of phosphine oxide generation in solution and trapping by ruthenium complexes

Phosphine oxide (H3PO), the first defined compound of phosphorus in the oxidation state -1, was obtained in solution by electrochemical methods starting from white phosphorus (see picture). H3PO was characterized by NMR solution spectroscopy as a free molecule and isolated as a ligand in ruthenium(II) complexes following tautomerization to phosphinous acid, H 2P(OH).

Electrochemical generation of P4 2- dianion from white phosphorus

Electrochemical reduction of elemental (white) phosphorus in an undivided cell equipped with a sacrificial metal anode (Al, Co, Nb, Sn) results in the formation of the reduced form of white phosphorus, P4 2- dianion, which was detected in solution by 31P NMR spectroscopy.