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EC number: 943-133-8
CAS number: -
The solubilities at 20°C were found as follows:
- solubilities via Cr content:
<0.2 mg/L with a loading rate of 1 g/L at pH 5
2.6 mg/L with a loading rate of 10 g/L at pH 4.2
- solubilities via TOC:
9 mg/L with a loading rate of 1 g/L at pH 4.5
62 mg/L with a loading rate of 10 g/L at pH 4.1
The determination was performed by flask method according
to OECD Guideline 105.
The test item is a complex mixture. Every constituent
contributes to a different degree to overall solubility, depending on
its own individual solubility and its mass fraction in the test item.
The water solubility was therefore investigated via determination of
dissolved amounts of chromium, nitrogen and carbon, the main elements
contained in the test item.
Different sample weights (different amounts of surplus)
were applied ( each about 1 g/L and 10 g/L) to investigate whether
fractions of different solubility are existent (partial solubility).
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