Tetrasodium 7-[[2-[(aminocarbonyl)amino]-4-[[4-chloro-6-[[3-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]phenyl]azo]naphthalene-1,3,6-trisulphonate

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

The 7th of June, 2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Version / remarks:

(adopted 27.07.95)

Principles of method if other than guideline:

Extracts were measured in the range 190/800 nm

GLP compliance:

no

Type of method:

flask method

Water solubility:

ca. 384 700 mg/L

Conc. based on:

test mat.

Temp.:

20 °C

pH:

ca. 3.5

Remarks on result:

other: mean of two measurements

Details on results:

Reference solutions were measured in the spectrophotometer in quantitative mode, thus generating a calibration curve smooth and linear at every concentration.Two measurement were performed, at 24 and after 48 hs. Measured results were the following:Final test at 24h: 381.6 g/LFinal test at 48h: 387.7 g/L

Preliminary solubility test: Reference samples and extract were first measured in the range 190 / 800 nm, so as to choose the right wavelength for quantitative measurements. Wavelength chosen: 419 nm.

Conclusions:

The tested substance is considered very soluble (water solubility = 384700 mg/l)

Executive summary:

Method

Water solubility was determined by OECD Guideline 105 (Water solubility), adopted 27.05.95.

Results

The tested substance is considered very soluble (water solubility = 384700 mg/l)

Description of key information

384700 mg/l

Key value for chemical safety assessment

Water solubility:

384 700 mg/L

at the temperature of:

20 °C

Additional information

Water solubility was determined by OECD Guideline 105 (Water solubility), adopted 27.05.95.