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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
May 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
differential scanning calorimetry
Test material information:
Composition 1
Key result
Boiling pt.:
> 184.71 - < 217.55 °C
Remarks on result:
other: batch 1702230431
Key result
Boiling pt.:
> 183.54 - < 220.24 °C
Remarks on result:
other: batch 17012304342
Key result
Boiling pt.:
> 171.05 - < 208.33 °C
Remarks on result:
other: batch 16092303420
Key result
Boiling pt.:
> 174.96 - < 211.98 °C
Remarks on result:
other: batch 16092303453
Key result
Boiling pt.:
> 179.38 - < 215.17 °C
Remarks on result:
other: batch 16092303386
Key result
Boiling pt.:
> 178.74 - < 214.35 °C
Remarks on result:
other: batch 15022309994
Conclusions:
According to the measure according to OECD 103, boiling point of DBTU (1,3-diebutyl-2-thiourea) is in the range 171 - 220.24°C at 1023hPa.
Executive summary:

According to the measure according to OECD 103, boiling point of DBTU (1,3-diebutyl-2-thiourea) is in the range 171 - 220.24°C at 1023hPa.

Description of key information

According to Mayer, R. et al., boiling point of DBTU is about 122-128°C at 14 torr (13,8169 atm). This study is considered as disregarded since pressure is different from 1 atm.

According to the measure according to OECD 103, boiling point of DBTU (1,3-dibutyl-2-thiourea) is in the range 171 - 220.24°C at 1023hPa.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
200 °C

Additional information