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Physical & Chemical properties

Water solubility

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011-12-08 to 2012-06-12
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to OECD guideline and GLP requirements.
Qualifier:
according to
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
flask method
Water solubility:
450.5 g/L
Temp.:
20 °C
pH:
11.25
Details on results:
The solubility of N,N DIETHYLHYDROXYLAMINE is given to be between 150 and 600 g/L. From this data, three individual concentrations at test item/ultrapure water = 60/40 were prepared by dissolution of the test item in ultrapure water.
As required by the Guideline, the concentrations measured in the 2 last vessels do not differ by more than 15 %.
Thus, as shown by these results, the water solubility of N,N DIETHYLHYDROXYLAMINE is 450.5 g/L.

Sample pH Test item concentration, g/L
T24h 10.97 374.0
T48h 11.40 414.5
T72h 11.09 486.5
Mean value of 2 last measurements 11.25 450.5
Conclusions:
Interpretation of results (migrated information): very soluble (> 10000 mg/L)
The water solubility of the test item N,N DIETHYLHYDROXYLAMINE, measured according to the OECD guideline 105, was 450.5 g/L. During the analysis, the temperature was 20°C +/- 0.6 °C and the mean value of pH was 11.25.
Executive summary:

The water solubility of the test item N,N DIETHYLHYDROXYLAMINE, measured according to the OECD guideline 105 and GLP requirements, was 450.5 g/L. During the analysis, the temperature was 20°C +/- 0.6 °C and the mean value of pH was 11.25.

Description of key information

DEHA was found very soluble in water.

Key value for chemical safety assessment

Water solubility:
450.5 g/L
at the temperature of:
20 °C

Additional information

The water solubility of the test item N,N DIETHYLHYDROXYLAMINE, measured according to the OECD guideline 105 and GLP requirements was 450.5 g/L (Study report, 2012a). During the analysis, the temperature was 20°C +/- 0.6 °C and the mean value of pH was 11.25.

A supportive study performed according to EU Method A.6 determined a water solubility of 348.3 g/L (Study report, 2012b). Both studies shows that DEHA is very soluble in water.