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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Water solubility

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Authoritative database
Justification for type of information:
Data from authoritative database
Qualifier:
according to guideline
Guideline:
other: As mention below
Principles of method if other than guideline:
Determine melting point of Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate
GLP compliance:
no
Type of method:
other: Not specified
Specific details on test material used for the study:
- Name of test material : 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-, calcium salt- Molecular formula : C18H14N2O6S.Ca- Molecular weight : 424.445 g/mole- Smiles notation : c12c(c(c(C(=O)[O-])cc1cccc2)O)\N=N\c1c(cc(C)cc1)S(=O)(=O)[O-].[Ca+2]- InChl : 1S/C18H14N2O6S.Ca/c1-10-6-7-14(15(8-10)27(24,25)26)19-20-16-12-5-3-2-4-11(12)9-13(17(16)21)18(22)23;/h2-9,21H,1H3, (H,22,23)(H,24,25,26);/q;+2/p-2/b20-19+;- Substance type: Organic - Physical state: Solid - Analytical purity: 87%- Impurities (identity and concentrations): 13%
Key result
Water solubility:
8.9 mg/L
Conc. based on:
test mat.
Temp.:
25 °C
Remarks on result:
other: No other detail available
Conclusions:
Water solubility of chemical calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate is determine to be 8.9 mg/L at temperature 25 Deg C. From this solubility value it is concluded that Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate is slightly soluble in water.
Executive summary:

Water solubility of chemical calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate is determine to be 8.9 mg/L at temperature 25 Deg C. From this solubility value it is concluded that Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate is slightly soluble in water.

Description of key information

Water solubility of chemical calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate is determine to be 8.9 mg/L at temperature 25 Deg C. From this solubility value it is concluded that Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate is slightly soluble in water.

Key value for chemical safety assessment

Water solubility:
8.9 mg/L
at the temperature of:
25 °C

Additional information

Water solubility of chemical calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate is determine to be 8.9 mg/L at temperature 25 Deg C. From this solubility value it is concluded that Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate is slightly soluble in water.

From other reliable sources & authoritative databases it is concluded that water solubility of chemical calcium 3 -hydroxy-4 -[(4 -methyl-2 -sulphonatophenyl)azo]-2 -naphthoate is determine to be less than 100 mg/L at temperature 25 Deg C.