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Administrative data

Endpoint:
thermal stability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 July 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
Version / remarks:
1981
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium β-glycerophosphate
EC Number:
212-464-3
EC Name:
Disodium β-glycerophosphate
Cas Number:
819-83-0
Molecular formula:
C3H7O6P.2Na
IUPAC Name:
disodium 2,3-dihydroxypropyl phosphate
impurity 1
Chemical structure
Reference substance name:
Disodium α-glycerophosphate
EC Number:
216-304-3
EC Name:
Disodium α-glycerophosphate
Cas Number:
1555-56-2
Molecular formula:
C3H9O6P.2Na
IUPAC Name:
disodium 2,3-dihydroxypropyl phosphate
impurity 2
Chemical structure
Reference substance name:
Water
EC Number:
231-791-2
EC Name:
Water
Cas Number:
7732-18-5
Molecular formula:
H2O
IUPAC Name:
Oxidane
Test material form:
solid: particulate/powder
Details on test material:
Batch No.: 11769400
Storage: 15-25°C

Results and discussion

For thermal stability study

Test substance thermally stable:
yes
Operating temperatureopen allclose all
Key result
Operating temp.:
50 °C
Remarks on result:
other: exothermic effect
Key result
Operating temp.:
80 °C
Remarks on result:
other: endothermic effect
Key result
Operating temp.:
210 °C
Remarks on result:
other: endothermic effect
Key result
Operating temp.:
230 °C
Remarks on result:
other: exothermic effect
Key result
Operating temp.:
370 °C
Remarks on result:
other: exothermic effect
Sublimation:
not determined
Transformation products:
not specified

Any other information on results incl. tables

Starting at a temperature of 50 °C a first exothermic effect with an energy release of -20 J/g can be observed. This effect is directly followed by an endothermic effect, starting at 80 °C. A second endothermic effect is detected starting at a temperature of 210 °C. This effect leads into a second exothermic effect starting at 230 °C with an energy release of -20 J/g. Subsequently a third exothermic effect starting at 370 °C with an energy release of -20 J/g is observed.

Applicant's summary and conclusion

Conclusions:
The test item Disodium beta-glycerophosphat (CAS no. 819-83-0) showed three exothermic effects at temperatures of 50, 230 and 370 °C with an overall decomposition energy of -60 J/g.
Executive summary:

The test item Disodium beta-glycerophosphat (CAS no. 819-83-0) showed three exothermic effects at temperatures of 50, 230 and 370 °C with an overall decomposition energy of -60 J/g.

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