Registration Dossier
Registration Dossier
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EC number: 220-491-7 | CAS number: 2783-94-0
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- density
- Remarks:
- density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Experimental test result performed using standard test guidelines
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Principles of method if other than guideline:
- The density is calculated from the difference in weight between the full and empty pycnometer and its volume
- GLP compliance:
- no
- Type of method:
- pycnometer method
- Key result
- Type:
- pour density
- Density:
- 0.556 g/cm³
- Temp.:
- 26.4 °C
- Remarks on result:
- other: No other details available
- Key result
- Type:
- tap density
- Density:
- 0.588 g/cm³
- Temp.:
- 26.4 °C
- Remarks on result:
- other: Other details not available
- Conclusions:
- The mean pour density and tapped density of Disodium 6-hydroxy-5-[(4- sulphonatophenyl)azo]naphthalene-2-sulphonate (CAS No. 2783-94-0) is found to be 0.5556
g/cm³ and 0.5883 g/cm³at 26.4°C and 974.1 hPa. - Executive summary:
The density of test item Disodium 6-hydroxy-5-[(4-sulphonatophenyl)azo]naphthalene-2- sulphonate (CAS No. 2783-94-0)was determined following OECD Guideline 109 and according to the Test methods: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using bulk density apparatus. The mean pour density and tapped density of test item is found to be 0.5556 g/cm³ and 0.5883 g/cm³at 26.4°C and 974.1 hPa.
Reference
Description of key information
The density of test item Disodium 6-hydroxy-5-[(4-sulphonatophenyl)azo]naphthalene-2- sulphonate (CAS No. 2783-94-0)was determined following OECD Guideline 109 and according to the Test methods: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using bulk density apparatus. The mean pour density and tapped density of test item is found to be 0.5556 g/cm³ and 0.5883 g/cm³at 26.4°C and 974.1 hPa.
Key value for chemical safety assessment
- Relative density at 20C:
- 0.588
Additional information
The density of test item Disodium 6-hydroxy-5-[(4-sulphonatophenyl)azo]naphthalene-2- sulphonate (CAS No. 2783-94-0)was determined following OECD Guideline 109 and according to the Test methods: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using bulk density apparatus. The mean pour density and tapped density of test item is found to be 0.5556 g/cm³ and 0.5883 g/cm³at 26.4°C and 974.1 hPa.
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