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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Spectrophotometry of the aqueous extract from the powder
GLP compliance:
no
Type of method:
other: spectrophotometry

Test material

Constituent 1
Chemical structure
Reference substance name:
Trihydrogen [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cuprate(3-), compound with N,N'-di(o-tolyl)guanidine (1:3)
EC Number:
277-086-3
EC Name:
Trihydrogen [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cuprate(3-), compound with N,N'-di(o-tolyl)guanidine (1:3)
Cas Number:
72928-60-0
Molecular formula:
C32H16-τN8Cu(SO3C15H18N3)τ
IUPAC Name:
Bis and tris and tetra [N-(2-methylanilino)-N’-(2-methylanilino) methaniminium][phthalocyaninesulfonato-κ4N29,N30,N31,N32]cuprate(II)
Test material form:
solid: particulate/powder

Results and discussion

Water solubility
Key result
Water solubility:
ca. 774 mg/L
Conc. based on:
test mat. (dissolved fraction)
Loading of aqueous phase:
1 other: g/100 g
Temp.:
25 °C
Remarks on result:
other: pH not mentionned in the study

Any other information on results incl. tables

Results

 

1 g of powder

Visual aspect of the testing solution before dilution

Very dark blue

 

Filtration

Porosity of 0,45 µm

Factor of dilution

100

Spectrometry results:

(Cary 60 Agilent – Xenon lamp)

DO at 344 nm = 0.3640 u.Abs

DO at 669 nm = 0.7899 u.Abs

Calculated DO

DO at 344 nm = 36.40 u.Abs

DO at 669 nm = 78.99 u.Abs

DO of reference

(Concref=6.887 mmg/L)

DOrefat 345 nm = 0.3116 u.Abs

Dorefat 669 nm = 0.7026 u.Abs

Calculated

Concentration in water

At 344 nm = 805 mg/L

At 669 nm = 774 mg/L

 

At 344 nm = secondary peak

At 668 nm = main peak

Applicant's summary and conclusion

Conclusions:
The water solubility of the subtance is 774 mg/L.
Executive summary:

By spectrophotometry, the water solubility is 774 mg/L.