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EC number: 219-372-2
CAS number: 2425-85-6
The water solubility of the test substance Pigment Red 3 was determined
according to the method agreed upon at the ”Analytical Experts Meeting”
of ETAD (Basel) on January 12, 2005.
The test substance was shaken with water for 2 hours at 30°C, then for
70 hours at 23-24°C. After filtration, the solubility was tested by use
of a UV-vis spectrometer. The determination was repeated three times.
The solubility of Pigment Red 3 in water at 23-24°C was determined to be
Column I - flow rate 0.4 mL/min
Column II - flow rate 0.2 mL/min
The water solubility of the test item was determined using the column elution method. The saturation mass concentrations of the test item were determined using LC-MS/MS. The reported results showed no significant tendency to increase or decrease time-dependently. All criteria given in the guideline OECD 105 were met, therefore, the study is considered to be valid.
Corresponding to the analyses the water solubility was determined to be
pH level: 6Test design: Column Elutionaverage concentration [µg/L]: 211relative standard deviation: 28.34%demanden max. range (Guideline 105): < 30%Number of replicates: 12Temperatur: 20 °C
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