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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From February 28, 2019 to April 17, 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: HJ/T 153-2004 "The Guidelines for the Testing of chemicals. Physical-Chemical Properties and Physical Hazards(second version". No.102
GLP compliance:
yes (incl. QA statement)
Type of method:
capillary method

Test material

Constituent 1
Reference substance name:
Sulfonic Acids, C18-alkane hydroxyl and C18-alkene, potassium salts
Cas Number:
2210238-56-3
IUPAC Name:
Sulfonic Acids, C18-alkane hydroxyl and C18-alkene, potassium salts
Test material form:
solid
Remarks:
Color: White to pale yellow This sample was obtained from the original liquid form by removing water.
Specific details on test material used for the study:
-Storage conditions
Store container tightly closed in well-ventilated place. Store in corrosive resistant container with a resistant inliner. Store locked up. Don't store with acids.

-Test item stability under storage conditions
Stable in container after opening. Stable in water and in light. Stability in soil is not applicable.

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
231.3 °C

Any other information on results incl. tables

The sample status gradually became softer when temperature up to 231.3℃ from room temperature. While melting point reached 231.3℃,  the sample melted comletely.

Applicant's summary and conclusion

Conclusions:
The melting point of the registered substance was determined to be 231.3°C.
Executive summary:

-Objective
Determining the Melting Point of C18K to provide data for environmental assessment.


 


-Test guideline


HJ/T 153-2004 "The Guidelines for the Testing of chemicals. Physical-Chemical Properties and Physical Hazards(second version". No.102


 


-Test conditions


The filled capillary tube was placed in the bath. At first, the heating of the bath wa adjusted to atemperature rise of 3℃ /min. the bath was stirred. At about 10℃ below the wxpected boiling temperature, the heating was reduced so that the temperature rise was less than 1℃ /min. and then observed the melting temperature.


 


-Results


The sample status gradually became softer when temperature up to 231.3℃ from room temperature. While melting point reached 231.3℃, the sample melted comletely.


 


-Conclusions


The melting point of C18K was 231.3ºC method with capillary tube.