Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016 - 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
GLP compliance:
no
Type of method:
flask method

Test material

Constituent 1
Chemical structure
Reference substance name:
6,8-dianilinonaphthalene-1-sulphonic acid
EC Number:
204-970-8
EC Name:
6,8-dianilinonaphthalene-1-sulphonic acid
Cas Number:
129-93-1
Molecular formula:
C22H18N2O3S
IUPAC Name:
6,8-bis(phenylamino)naphthalene-1-sulfonic acid
Test material form:
solid

Results and discussion

Water solubility
Water solubility:
8.3 mg/L
Temp.:
20 °C
pH:
> 3.7 - < 4.7
Details on results:
Flask No Equilibration time pH of aqueous Test substance
at 20°C (h) solution content (mg/L)
1 24 4.7 8.3
2 48 4.4 8.3
3 72 3.7 (3.4) outlier
mean 2.6

Applicant's summary and conclusion

Conclusions:
The water solubility of the substance is 8.3 mg/L at 20°C.
Executive summary:

The water solubility of the substance was determined according to OECD 105 and was found to be 8.3 mg/L at 20°C.