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Boiling point

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Description of key information

Decomposition at T > 160.75 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
363.48 °C

Additional information

The boiling temperature of Dibutyl phosphonate was investigated. The Differential Scanning Calorimetry method was used. The procedure used was similar to OECD TG 103. After melting at -12.3 °C, the decomposition of test item starts at 160.75 °C with a peak at 241.81 °C correlated to ΔH= 156.5. J/g. 

The boiling temperature of the test substance could not be determined because of its thermal decomposition.

An estimated value of boiling point of 363.48 °C has been calculated by EPI Suite v.4.11 using the SMILES notation O=P(OCCCCCCCC)OCCCCCCCC.