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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Physical & Chemical properties

Water solubility

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Administrative data

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
flask method
Specific details on test material used for the study:
Since the test item was a salt, pure samples of each moitie were also used for independent analytical measurements of each moitie.
Key result
Water solubility:
51 g/L
Conc. based on:
act. ingr.
Temp.:
20 °C
pH:
10
Details on results:
Results are presented in table 1. Estimated water solubility of DDBS-CHA was 51 g/L.

 Table 1: analytical results of dodecylbenzene sulfonate (DDBS) and cyclohexylamine (CHA) measurements in incubated flasks at different sampling times. The validity criteria of 15% variability is fulfilled for both measures, as well as for the sum of both concentrations. pH was 10 in all flasks.

Flask

Incubation time (30°C)

Incubation time (20°C)

DDBS (g/L)

CHA (g/L)

Sum (g/L)

1

24h

24h

37.5

13.6

51.2

2

48h

24h

36.5

13.8

50.4

3

72h

24h

38.3

12.9

51.2

 

 

Mean

37.5

13.4

50.9

 

 

RSD

2.44%

3.61%

0.96%

 

Conclusions:
Solubility of dodecylbenzenesulfonate compound with cyclohexylamine 1:1 is 51 g/L (expressed as the sum of both moities concentrations in the test system at saturation).
Executive summary:

Water solubility of dodecylbenzenesulfonate compound with cyclohexylamine 1:1 (DDBS-CHA) was investigated following OECD 105 protocol. The visual pre-test showed that the solubility of the active ingredients in pure water was above 50 g/L. In the final test, water solubility was investigated analytically. The test item was mixed in water in excess at 30°C and subsequently cooled down at 20°C for analytical measurement. Water solubility of dodecylbenzenesulfonate compound with cyclohexylamine 1:1 is 51 g/L (expressed as the sum of both moities concentrations in the test system at saturation).

Description of key information

Water solubility of dodecylbenzene sulfonate compound with cyclohexylamine (1:1) is 51 g/L.

Key value for chemical safety assessment

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

Additional information