Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: conducted to OECD/EC guidelines with GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Principles of method if other than guideline:
Determination was carried out by differential scanning calorimetry (DSC) using the procedure specified in ASTM E537-86, Method A1 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).
GLP compliance:
yes (incl. certificate)
Type of method:
thermal analysis

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Hydroxyphosponoaceic acid, trisodium salt (TK13061/2)
- Physical state: Solid (white powder)
- Lot/batch No.: LIC 613/04
- Storage condition of test material: Room temperature in the dark

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 633 K

Applicant's summary and conclusion

Conclusions:
The melting/freezing temperature of Trisodium [carboxy(oxido)methyl]phosphonate has been determined to be greater than 633 K.