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EC number: 237-438-9
CAS number: 13784-51-5
In a previous test the water solubility was
determined to be more than 150 g/L. Based on this the initial
concentration of about 1000g/L for the final part of the test was
The determined final result for water
solubility of the test substance was calculated to be more than 500g/L.
In the test set up about 50g of test substance and 50mL of deionised
water was brought together. Because the test substance is a liquid this
test set up resulted in a total volume of about 100mL. It was
technically not possible to reach an initial concentration of 1000g/L
because not less than 50mL of deionised water could be added to 50g of
test substance as otherwise dilution of the test substance would be the
case instead of dissolving the test substance in water. As described
before 50g of test substance and 50mL of deionised water resulted in a
total volume of about 100mL. As this was the maximum test
substance-water ratio that could be used in the test set up the water
solubility could not be determined at a higher value than about 500g/L,
therefore this figure is used as maximum result for the test.
The individual results of determined
concentration of test substance at the different time points are
presented in Table I, duplicate water solubility results per time point
are graphically displayed in Figure 1 in the attachment.
Table I: Concentration test substance at
different time points
Tx 44B t=48 hours I
Tx 44B t=48 hours II
Tx 44B t=72 hours I
Tx 44B t=72 hours II
Tx 44B t=96 hours I
Tx 44B t=96 hours II
To be reported
water solubility of 2,4-pentanedione, peroxide was
determined according to OECD guideline 105 at a temperature of 20°C.
water solubility of 2,4-pentanedione, peroxide is more than 500 g/L at
The water solubility of 2,4-pentanedione, peroxide is more than 500 g/L at 20°C.
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