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Boiling point

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Description of key information

Decomposition at T > 300 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
639.74 °C

Additional information

The boiling temperature of the substance " Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite" was investigated. The Differential Scanning Calorimetry method was used. The procedure used was similar to OECD TG 103. After melting at 19.8 °C, the decomposition of test item starts at 300 °C with a peak at 337.98 °C correlated to ΔH= 58.16 J/g.  Before decomposition the evaporation of one impurity at 162.88 °C (probably diethyl phosphonate) was registered. The boiling temperature of the test substance could not be determined because of its thermal decomposition.

An estimated value of boiling point of 639.74 °C has been calculated by EPI Suite v.4.11 using the SMILES notation CCCCCCCCCCCCSP(SCCCCCCCCCCCC)SCCCCCCCCCCCC for its most abundant component Tridodecyl trithiophosphite.