Nomenclature
CAS number: 3982-91-0
Thiophosphoryl chloride.
Cl
3PS; mol wt 169.40.
Cl 62.79%, P 18.28%, S 18.93%.
PSCl
3.
Description and references
Prepd from P2S5 + PCl5: Martin, Duvall, Inorg. Synth. 4, 73 (1953). Alternate procedure from PCl3, AlCl3 and S: Moeller et al., ibid. 71.
Properties
Fuming liq, crystallizes as α-form at -40.8° or
as β-form at -36.2°. bp760 125°. nD25 1.635.
Sol in benzene, carbon tetrachloride, carbon disulfide, chloroform.
Hydrolyzes slowly in water, rapidly in alkaline solns. In water
the hydrolysis products are orthophosphoric acid, hydrochloric acid,
and hydrogen sulfide.Caution
Strong irritant.