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Diss Factsheets

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2021
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
no
Type of method:
capillary method

Test material

Constituent 1
Reference substance name:
Docosan-1-ol, icosan-1-ol, octadecan-1-ol and their reaction products with betaine and ethanesulphonic acid
IUPAC Name:
Docosan-1-ol, icosan-1-ol, octadecan-1-ol and their reaction products with betaine and ethanesulphonic acid
Test material form:
solid: bulk

Results and discussion

Melting / freezing point
Melting / freezing pt.:
70.63 °C
Atm. press.:
1 020.3 hPa

Applicant's summary and conclusion

Executive summary:

Test system


    Capillary tube in a metal block


Stuart SMP30.


     Preparation


The samples of the three batches are put into capillary tubes fused at one end. To obtain a uniformly packed sample, the capillary tubes are dropped from a height onto a watch glass.


     Measurement


The three capillary tubes, filled with the samples, are placed in a heated metal block. The temperature is raised up to 60°C and once it is reached, it is stabilized for 120 s. Then the metal block is heated so that the temperature rise is 5°C/min.


Results
























 



Batch P20843



Batch P20517



Batch P21096



Beginning of melting (°C)



70,3



70,0



71,6



Final stage of melting (°C)



73,5



73,4



74,9