Trihydrogen [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cuprate(3-), compound with N,N'-di(o-tolyl)guanidine (1:3)

Water solubility

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

Test material information

Constituent 1

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.