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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:
18 February 1987 to 27 February 1987
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.6 (Water Solubility)
Deviations:
not specified
GLP compliance:
yes
Type of method:
flask method
Specific details on test material used for the study:
Product designation: Monoazo Yellow TZ 2382
Identification: FAT 40224/C
Vers. 10/86 Op. 1/86
Water solubility:
341 g/L
Temp.:
20 °C
pH:
>= 6.4 - <= 7
Remarks on result:
other: Other details are not provided
Details on results:
The substance forms a paste at a concentration of 2000 g/L. Therefore, it is not possible to use a five fold saturation concentration for the determination of solubility, as required by the EC method. Consequently, the solubility can be higher than this mean value.

 


 
































































Flask



1



2



3



Weight of the test substance



2.0032 g



2.0699 g



2.0632 g



Volume of water, ml



5.00



5.00



5.00



Temperature of agitation



30 °C



30 °C



30 °C



Agitation duration, h



24



48



72



Temperature of equilibration



20.0 °C



20.0 °C



20.0 °C



Equilibration duration h



24



24



24



pH of the solution at 20 C



7.0



6.5



6.4



Water solubility g/l



325



345



354



Water solubility, mean value



341 g/l



 

Conclusions:
The water solubility of FAT 40224/C was 341 g/L at 20 °C.
Executive summary:

In a GLP-compliant study with FAT 40224/C, performed according to EU method A.6 using flask method. Based on the study results, the water solubility of the test substance was determined to be 341 g/L at 20 °C. Experiments were performed in triplicate.

Description of key information

In a GLP-compliant study with FAT 40224/C, performed according to EU method A.6 using flask method. Based on the study results, the water solubility of the test substance was determined to be 341 g/L at 20 °C. Experiments were performed in triplicate.

Key value for chemical safety assessment

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

Additional information