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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27th July 1995
Deviations:
no
GLP compliance:
no
Type of method:
capillary method

Test material

Constituent 1
Reference substance name:
2-Butyne-1,4-diol, reaction products with 1,2-oxathiolane 2,2-dioxide and sodium hydroxide
EC Number:
290-883-0
EC Name:
2-Butyne-1,4-diol, reaction products with 1,2-oxathiolane 2,2-dioxide and sodium hydroxide
Cas Number:
90268-78-3
Molecular formula:
not applicable (UVCB substance)
IUPAC Name:
tetrasodium but-2-yne-1,4-diol 3-[(4-hydroxybut-2-yn-1-yl)oxy]propane-1-sulfonate 3-hydroxypropane-1-sulfonate 3-{[4-(3-sulfonatopropoxy)but-2-yn-1-yl]oxy}propane-1-sulfonate

Results and discussion

Melting / freezing point
Key result
Atm. press.:
1 atm
Decomposition:
yes
Decomp. temp.:
180 °C
Sublimation:
no
Remarks on result:
other: The test material decomposes before melting occurs.

Applicant's summary and conclusion

Conclusions:
The study was performed according to OECD TG102 without deviations and therefore reliability of Klimisch 2 has been assigned. The test material decomposes before melting occurs at 180 °C.
Executive summary:

The melting point of the test material was determined experimentally using the capillary method in a non-GLP test according to OECD guideline 102. The test material decomposes before melting occurs at 180 °C.