reaction mass of: 7-amino-3,8-bis-[4-(2-sulfoxyethylsulfonyl)phenylazo]-4- hydroxynaphthalene-2-sulfonic acid, Na/K salt; 7-amino-3-[4-(2-sulfoxyethylsulfonyl)phenylazo]-4-hydroxy-8-[4-(2-sulfoxyethylsulfonyl)-2- sulfophenylazo]naphthalene-2-sulfonic acid, Na/K salt; 7-amino-8-[4-(2-sulfoxyethylsulfonyl)-phenylazo]-4-hydroxy-3-[4-(2-sulfoxyethylsulfonyl)- 2-sulfophenylazo]naphthalene-2-sulfonic acid, Na/K salt; 7-amino-3,8-bis-[4-(2-sulfoxyethylsulfonyl)-2-sulfophenylazo]-4-hydroxynaphthalene-2- sulfonic acid, Na/K salt

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1998

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Version / remarks:

Directive 92/69/CEE, A.6

Deviations:

not specified

GLP compliance:

yes (incl. QA statement)

Remarks:

Swiss GLP

Type of method:

flask method

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: TVR 50
- Expiration date of the lot/batch: September 01, 2004

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature at about 20 °C.
- Stability under test conditions: stable under storage conditions

Water solubility:

277 g/L

Temp.:

20 °C

pH:

4.6

Details on results:

The pH value was determined being 4.6 at highest concentration. As no sediment was observed following centrifugation, the water solubility is at least 277 g/L.

Conclusions:

Water solubility of FAT 40571/A: ≥ 277 g/L

Executive summary:

The water solubility of FAT 40571/A is carried out according to OECD 107 guideline using flask method at 20 °C temperature with pH 4.6. The three test solution results were 275.5, 275 and 280.2. Based on these results water solubility of FAT 40571/A is ≥ 277 g/L and the substance is considered very soluble.

Description of key information

The water solubility of Reactive Brown 49 at 20 °C is 277 g/L solution.

Key value for chemical safety assessment

Water solubility:

277 g/L

at the temperature of:

20 °C

Additional information

The water solubility of Reactive Brown 49 is carried out according to OECD 107 guideline using flask method at 20 °C temperature with pH 4.6. The three test solution results were 275.5, 275 and 280.2 g/L. Based on these results water solubility of Reactive Brown 49 is ≥ 277 g/L and the substance is considered very soluble.