Trisodium trihydrogen 5,5',5''-(1,3,5-triazine-2,4,6-triyltriimino)tris[5-sulphonatosalicylate]

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

OECD 105

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Type of method:

flask method

Test material

Test material information

Constituent 1

Reference substance name:

Trisodium trihydrogen 5,5',5''-(1,3,5-triazine-2,4,6-triyltriimino)tris[5-sulphonatosalicylate]

EC Number:

279-091-6

EC Name:

Trisodium trihydrogen 5,5',5''-(1,3,5-triazine-2,4,6-triyltriimino)tris[5-sulphonatosalicylate]

Cas Number:

79135-90-3

Molecular formula:

C24H18N6O18S3.3Na

IUPAC Name:

trisodium 3-({4,6-bis[(3-carboxy-2-hydroxy-5-sulfonatophenyl)amino]-1,3,5-triazin-2-yl}amino)-5-carboxy-4-hydroxybenzene-1-sulfonate

Results and discussion

Water solubility

Key result

Water solubility:

173 g/L

Temp.:

20 °C

pH:

7.5

Remarks on result:

other: mean of 3 measurements

Any other information on results incl. tables

Table 1: results of preliminary test

water for 0.1 g test item [mL]	0.1	0.5	1	2	10	100	150
approximate solubility [g/L]	> 1000	200 -1000	100 - 200	50 - 100	10 - 50	1 – 10	< 1
visual evaluation	not soluble	not soluble	soluble	soluble	soluble	soluble	soluble

Table 2: results of flask method

Flask no	Equilibration time at 20 °C [h]	pH of aqueous solution	Test substance content [g/L]
1	24	7.5	166
2	48	7.5	177
3	72	7.5	176
mean			173

Applicant's summary and conclusion

Conclusions:

the water solubility of the test item at 20°C is 173 g/L