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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:
06 September 2012 - 04 March 2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.6 (Water Solubility)
Version / remarks:
(2008)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Version / remarks:
(1995)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7840 (Water Solubility)
Version / remarks:
(1998)
Deviations:
no
GLP compliance:
yes
Type of method:
flask method
Water solubility:
404 g/L
Temp.:
20 °C
pH:
12
Remarks on result:
other: Peak 1; identified as IPDA.
Water solubility:
73 g/L
pH:
12
Remarks on result:
other: Peak 2; identified as IPDA-BADGE-IPDA.

Water solubility results-Peak 1

Stirring time

[hours]

Analysed concentration

[g/l]

Mean

[g/l]

MD

[%]

pH

 

24

375

404

14

12.0

  

423

 

  

 

48

431

  

  

12.0

  

417

  

  

 

72

395

  

  

12.0

 

Mean of t=24, 48 and 72 h as the max.difference of the analysed conc. after 24, 48 and 72 h was ≤ 15%.

 

Water solubility results-Peak 2

Stirring time

[hours]

Analysed concentration

[g/l]

Mean

[g/l]

MD

[%]

pH

 

24

64.0

73.0

5.8

12.0

48

70.8

  

  

12.0

72

75.1

  

  

12.0

 

Mean of t=48 and 72 h as the max.difference of the analysed conc. after 24, 48 and 72 h was >15%.

 

Conclusions:
Interpretation of results (migrated information): very soluble (> 10000 mg/L)
The water solubility was determined using the flask method (in accordance with EC A.6, OECD 105 and OPPTS 830.7840 and in compliance with GLP).
The water solubility of the test substance at 20°C was 404 g/L for Peak 1 (identified as IPDA) and 73 g/L for Peak 2 (identified as IPDA-BADGE-IPDA). The pH of the aqueous samples was 12.0.

Description of key information

The water solubility was determined using the flask method (in accordance with EC A.6, OECD 105 and OPPTS 830.7840 and in compliance with GLP). 
The water solubility of the test substance at 20°C was 404 g/L for Peak 1 (identified as IPDA) and 73 g/L for Peak 2 (identified as IPDA-BADGE-IPDA). The pH of the aqueous samples was 12.0.

Key value for chemical safety assessment

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

Additional information