Registration Dossier
Registration Dossier
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Reaction mass of Sodiumbis[1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-) and Sodium [1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato(2-)][1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-) and Sodiumbis[1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-)
EC number: 915-756-5 | CAS number: -
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
At 20°C the solubilities were found as follows:
31 mg/L with a loading rate of 0.1 g/L at pH 6.6
85 mg/L with a loading rate of 0.5 g/L at pH 6.7
Key value for chemical safety assessment
- Water solubility:
- 31 mg/L
- at the temperature of:
- 20 °C
Additional information
The determination was carried out by flask method according to OECD Guideline 105.
The test item is a complex mixture. The water solubility can therefore only be investigated via determination of dissolved amounts of chromium and carbon contained in the test item. The solubility in water is not a constant, but increases with the mass of test item applied in the experiment.
Since the solubilities quantified by TOC can be affected by impurities (butyldiglycol and Na-salicylate) therefore the solubilites quantified by Cr contend can be considered suitable for using this endpoint and further assessment.
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