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EC number: 500-078-0
CAS number: 31923-84-9
1 - 4.5 moles propoxylated
Because the test item is an NLP and no standard compounds were available
for the different fractions the test item was used as standard compound
calculated with a stipulated overall content of 100 %. The calibration
was only used to check the system suitability and to evaluate the total
water solubility. The hydrolysis tests themselves were analyzed using
the peak area and the total peak area of main NLP-fractions.
Ethane-1,2 -diol, propoxylated, is found to be stable at 50°C at all
three pH values (4, 7 and 9). Therefore, it can be assumed that the test
item is also stable at 25°C and no half-life times and hydrolysis rates
were calculated. Ethane-1,2 -diol, propoxylated as a NLP contains
different molecular weight fractions (= NLP-fraction) which behave
similar in hydrolysis reaction (Currenta, 2009).
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