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Physical & Chemical properties

Vapour pressure

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Description of key information

A weight of evidence approach is made for the calculation of the vapour pressure of TMTM (tetramethylthiurame monosulphide): 1 measure reported in the HPVis dossier of TMTM, 2 calculations are made using QSAR software (MPBWIn and SPARC) and 2 measures of TMTD. We concluded that VP of TMTM is in the range 2e-2 till 2e-5 Pa at 25°C.

Key value for chemical safety assessment

Vapour pressure:
0.002 Pa
at the temperature of:
25 °C

Additional information

A weight of evidence approach is made for the calculation of the vapour pressure of TMTM (tetramethylthiurame monosulphide): 1 measure reported in the HPVis dossier of TMTM, 2 calculations are made using QSAR software (MPBWIn and SPARC) and 2 measures of TMTD:

1- According to the dossier HPVIS (US EPA) submitted by the American Chemistry Council Rubber and Plastic Additives Panel, vapour pressure of TMTM tetramethylthiuram monosulphide is about 2.7e-2 Pa at 25°C.

2- The substance Tetramethylthiurame monosulphide was predicted to have a vapour pressure of 0.0344 pa. With aprecision of QSAR of log unit 0.285, VP is on the range : 0.0178 -0.066 Pa at 25°C

3 -According to an estimation with SPARC software, vapour pressure of TMTM (tetramethylthiurame monosulphide) is about 0.0011 Pa at 25°C (the mean absolute error in log unit is 0.107). As a consequence the vapour pressure is in the range 0.00057 till 0.0021 Pa at 25°C.

Finally, we concluted that VP of TMTM is in the range 2e-5 till 2e-2 Pa at 25°C.