Registration Dossier
Registration Dossier
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EC number: 443-520-7 | CAS number: -
Water solubility
Administrative data
- 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
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
Reference
- 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
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Visual inspection
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2000-04-26
- 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 - Physical state at 20°C and 1013 hPa:
- solid
- Form:
- solid: particulate/powder
- Colour:
- White
- Substance type:
- organic
- Conclusions:
- ITC 908, VDPA tetrasodium salt, is a white solid.
- Executive summary:
ITC 908, VDPA tetrasodium salt, is a white solid
- Reason / purpose for cross-reference:
- 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 for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- GLP compliance:
- yes (incl. QA statement)
- 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
- 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.
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.
- Reason / purpose for cross-reference:
- 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 for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - Shake Flask Method)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7550 (Partition Coefficient, n-octanol / H2O, Shake Flask Method)
- GLP compliance:
- yes (incl. QA statement)
- 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.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7840 (Water Solubility)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2000-04-26
- Type of method:
- flask method
Test material
- Reference substance name:
- -
- EC Number:
- 443-520-7
- EC Name:
- -
- Cas Number:
- 33016-77-2
- Molecular formula:
- C2H4Na4O6P2
- IUPAC Name:
- tetrasodium (1-phosphonatoethenyl)phosphonate
- Test material form:
- solid
Constituent 1
- 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
Water solubilityopen allclose all
- 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
Applicant's summary and conclusion
- 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.
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