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EC number: 259-134-5
CAS number: 54381-16-7
The concentrations of the different test solutions were calculated
automatically using the equation of the calibration curve and
considering the dilution factors of the test solutions. The results are
listed in the following table :
Average : 178 g/L *
* : Standard deviation 1.51 g/L, relative standard deviation 0.85%
Annotation : pH value of the sample solution was 1.9 (1.9, 1.9) after 24
(48, 72 ) hours of incubation. It was observed that the sample
incubation solutions turned purple in the course of the study. The
colour intensity increased with incubation time. As no significant
difference in the concentrations could be determined and no degradation
products could be detected, the results were judged to be valid.
The water solubility of N,N-Bis(2 -hydroxyethyl)-p-phenylenediamine
sulphate monohydrate was determined by a test procedure that complies
with EU test method L383 A/54 -62 (EU A.6). The solubility of the test
item N,N-Bis(2 -hydroxyethyl)-p-phenylenediamine sulphate monohydrate
was determined to be 178 g/L using the flask method at 20 deg C and
preincubation at 30 deg C.
The solubility of the test item
N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate monohydrate in water
at 20 deg C was determined to be 178 g/L at pH 1.9.
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