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Description of key information

The hydrolysis of a 30% aqueous thiophosphoryl chloride solution in CD3CN was evaluated by NMR spectroscopy. 

Key value for chemical safety assessment

Bioaccumulation potential:
no bioaccumulation potential

Additional information

The hydrolysis of a 30% aqueous thiophosphoryl chloride solution in CD3CN was evaluated by NMR spectroscopy. After 2.5 h as main components S=P(OH)2Cl and S=P(OH)3 and minor amounts of O=P(OH)2Cl and H3PO4 were found.

After 9 hours as main component S=P(OH)3 and minor amounts of O=P(OH)2Cl and H3PO4 were detected.

Due to analytical limitations of the method used, hydrogen chloride can not be detected, but the formation of HCl is predicted based on the stoichiometry of the hydrolysis reaction.

Due to the polarity and dissociation of S=P(OH)3 a high water solubility of the hydrolysis products is expected and therefore no accumulation of the hydrolysis products is assumed.