Registration Dossier

Administrative data

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002-04-30 - 2002-06-30
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Cross-referenceopen allclose all
Reason / purpose:
reference to same study
Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002-04-30 - 2002-06-30
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
GLP compliance:
yes (incl. certificate)
Remarks:
2000-04-26
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
- Synonyms: ITC 908, vinylidenephosphonic acid tetrasodium salt (VDPA tetrasodium salt)
- Lot/batch No.of test material: 562CH/646
- Purity: 87.33%
- Storage condition of test material: Room temperature, in the dark
Melting / freezing pt.:
> 400 °C
Decomposition:
no

The temperature accuracy of the DSC was assessed using an indium reference standard (purity*99.99998%). The melting temperature was determined to be 156.5 °C and within the defined tolerance (156.6 +- 5 °C). The DSC was therefore considered acceptable for use.

Conclusions:
The melting/freezing temperature of the test material has been determined to be greater than 400 °C.
Executive summary:

The test material appeared as a white solid on completion of testing (i.e. as initial appearance) indicating no physical change had occurred.

The melting/freezing temperature of the test material has been determined to be greater than 400 °C.

Reason / purpose:
reference to same study
Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002-04-30 - 2002-06-30
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.8 (Partition Coefficient - Shake Flask Method)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7550 (Partition Coefficient, n-octanol / H2O, Shake Flask Method)
GLP compliance:
yes (incl. certificate)
Remarks:
2000-04-26
Type of method:
flask method
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
- Synonyms: ITC 908, vinylidenephosphonic acid tetrasodium salt (VDPA tetrasodium salt)
- Lot/batch No.of test material: 562CH/646
- Purity: 87.33%
- Storage condition of test material: Room temperature, in the dark
Analytical method:
liquid chromatography
Type:
Pow
Partition coefficient:
< 0.003
Temp.:
21 °C
pH:
ca. 7
Type:
log Pow
Partition coefficient:
< -2.52
Temp.:
21 °C
pH:
ca. 7
Details on results:
Linearity of detector response was assessed for this test in aqueous and organic media. Correlation coefficients of 0.999 were obtained proving satisfactory for the test.
Conclusions:
The partition coefficient of the test material has been determined to be less than 3.03x10-3 at 21 +-0.5°C, log10 Pow < -2.52.
Executive summary:

The partition coefficient of the test material has been determined to be less than 3.03x10-3 at 21 +-0.5°C, log10 Pow < -2.52.

Reason / purpose:
reference to same study
Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002-04-30 - 2002-06-30
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.6 (Water Solubility)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7840 (Water Solubility)
GLP compliance:
yes (incl. certificate)
Remarks:
2000-04-26
Type of method:
flask method
Specific details on test material used for the study:
- Synonyms: ITC 908, vinylidenephosphonic acid tetrasodium salt (VDPA tetrasodium salt)
- Lot/batch No.of test material: 562CH/646
- Purity: 87.33%
- Storage condition of test material: Room temperature, in the dark
Water solubility:
> 22 - < 23.9 other: %w/w
Conc. based on:
test mat.
Temp.:
20 °C
pH:
> 10.8 - < 10.9
Key result
Water solubility:
> 282 000 - < 315 000 mg/L
Conc. based on:
test mat.
Temp.:
20 °C
pH:
> 10.8 - < 10.9
Conclusions:
The water solubility of the test material has been determined to be in the range 22.0 to 23.9% w/w at 20.0 +- 0.5 °C.
Executive summary:

The water solubility of the test material has been determined to be in the range 22.0 to 23.9% w/w at 20.0 +- 0.5 °C.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report Date:
2002

Materials and methods

Test guideline
Qualifier:
no guideline required
Principles of method if other than guideline:
Visual inspection
GLP compliance:
yes (incl. certificate)
Remarks:
2000-04-26

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Specific details on test material used for the study:
- Synonyms: ITC 908, vinylidenephosphonic acid tetrasodium salt (VDPA tetrasodium salt)
- Lot/batch No.of test material: 562CH/646
- Purity: 87.33%
- Storage condition of test material: Room temperature, in the dark

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
solid: particulate/powder
Colour:
White
Substance type:
organic

Applicant's summary and conclusion

Conclusions:
ITC 908, VDPA tetrasodium salt, is a white solid.
Executive summary:

ITC 908, VDPA tetrasodium salt, is a white solid