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Physical & Chemical properties

Vapour pressure

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Description of key information

The vapour pressure of MITC (methyl isothiocyanate) was measured / extrapolated using different sources; we found ca 3 kPa at 50°C.

Key value for chemical safety assessment

Vapour pressure:
3 000 Pa
at the temperature of:
25 °C

Additional information

A bibliographic study was made using different sources:

- According to Bauer (1935), vapour pressure of MITC (methyl isothiocyanate) at 10°C equals 12.5 torr (i.e 1.66 kPa), at 50°C 68.5 torr (i.e. 9.13 kPa)

- Using the equation given in the CHEMSAFE data base, vapour pressure of MITC at 35.8°C is 4.89 kPa and 118.82°C 103.43 kPa.

- According to Degussa (1981), MITC (methyl isothiocyanate) has got the following vapour pressure : 5.9997 kPa at 40°C - 9.133 kPa at 50°C and 53.329 kPa at 97.8°C.

Finally a study was made by Hundington for MLPC on behalf of MLPC in 2010 according to the Swiloboff method (OECD 104),

and the value of 3 kPa was found for and 25°C. All the values are in accordance