Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 214-244-2
CAS number: 1117-31-3
Table 1. Degree of hydrolysis
Sample pH (mean of 3 samples)
Mean concentration (mg/L), n=3
Log10 Concentration (mg/L)
Degree of hydrolysis (%)
Table 2. Results of linear regression
2.67E-02 per h (7.42E-06 per sec)
25.9 h (1.08 days)
Table 3. Acetic acid concentration
The linearity of the detector response with respect to
concentration was assessed over the concentration range of 15 to 300
mg/L for both test item an acetic acid. This was satisfactory with
correlation coefficients (r) of 0.999 being obtained for each analyte.
It was observed that the concentration of acetic acid in the
sample solutions increased with time and was most likely due to
hydrolysis of the test item.
A peak in the chromatography at approximately 12.7 minutes, which
was not present in the standard solutions, was observed to increase in
magnitude over the period of the test. This was not identified or
quantified but was considered most likely to be ethylene glycol
monoacetate, a degradation product of the test item.
The rate constant and half-life at 37 °C of the test item in
simulated intestinal fluid at pH 7.5 were determined and are shown below.
Table 4. Rate constant and half-life time
Rate constant (per sec)
Estimated half-life at 37 °C
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again