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Physical & Chemical properties

Melting point / freezing point

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Description of key information

Melting point of MTSC is about 136-138°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
137 °C

Additional information

Four different data are compared:

1. According to 6 publications in Beilstein, melting point of MTSC (4-methylthiosemicarbazide) is on the range 136-139°C.

2. According to Knovel (2008), melting point of MTSC (4-methylthiosemicarbazide) is about 135-138°C.

3. According to 3 publications in ACS on STN, melting point of MTSC (4-methylthiosemicarbazide) is in the range 135.5-138°C.

4. According to a study made at our lab according OECD 102 containing statistic values (300 data from 2009-2011), melting point of MTSC is in the range 136-138°C 5. The same information is reported on Degussa SDS (1988)

6. Four data, coming from publication, will be considered as disregard.