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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Boiling point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
March to April 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Boiling pt.:
> 200 °C
Atm. press.:
984 hPa
Decomposition:
yes
Decomp. temp.:
> 200 °C
Remarks on result:
other: Since the test material decomposed before reaching the boiling point, no boiling point could be determined.
Executive summary:

AEROSOL® OT 100% Surfactant decomposed at pressure of 984 hPa with noticeable weight loss above 200 °C as observed in TGA-Analysis already before boiling and evaporating (DTG curve). Therefore a boiling point cannot be determined.

Description of key information

Due to decomposition at temperatures > 200°C, the boiling point could not be determined.

Key value for chemical safety assessment

Additional information

In the Klimisch 1 key study, the boiling point of Docusate Sodium was determined experimentally according to EU method A.2. The results obtained in TGA analysis demonstrated that Docusate Sodium decomposes at pressure of 984 hPa with noticeable weight loss above 200 °C before boiling and evaporating.

Column 2 of REACH Annex VII section 7.3 states that the boiling point does not need to be measured "for solids which either melt above 300°C or decompose before boiling." Since Docusate Sodium decomposes before reaching the boiling point, the boiling point was not determined.

The experiment demonstrated that the boiling point is > 200°C. For the risk assessment a worst case value of 200 °C will be used.