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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012
Reliability:
1 (reliable without restriction)
Cross-reference
Reason / purpose for cross-reference:
reference to same study
Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
GLP compliance:
no
Type of method:
flask method
Water solubility:
318 g/L
Temp.:
20 °C
pH:
6.2 - 6.5
Conclusions:
water solubility at 20 °C : 318 ± 8 g/l
Executive summary:

Method

OECD guideline 105.

Results

Solubility in water at 20 °C = 318.8 g/l.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)
EC Number:
260-906-9
EC Name:
Trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)
Cas Number:
57693-14-8
Molecular formula:
C40H20CrN6O14S2.3Na
IUPAC Name:
trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)

Results and discussion

pH value
pH value:
ca. 6.4
Temp.:
20 °C
Concentration:
> 300 - <= 330 g/L

Applicant's summary and conclusion

Conclusions:
pH 6.4 at 20 °C (ca 300 g/l)
Executive summary:

Method

pH was measured in a test on water solubility at 20 °C and at concentration of ca. 300 g/l.

Results

pH = 6.4.