Bisbenzimidazo[2,1-b:1',2'-j]benzo[lmn][3,8]phenanthroline-6,9-dione

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

test procedure similiar to OECD 105

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Deviations:

yes

Remarks:

modified taking into account the very low solubility of the test substance

Principles of method if other than guideline:

The method for the determination and analytical investigation is according to the method that was agreed upon at the "Analytical Experts Meeting" of ETAD (Basel) on January 12, 2005.

Type of method:

other: shake-flask method

Water solubility:

0.96 mg/L

Temp.:

24 °C

pH:

6.3

_{The solubility of the sample C.I. Pigment Red 194 in water at ambient temperature, determined under the conditions as mentioned above, is 0.96 mg/L (mean, n = 3, sigma = 0.04).}

Table 1: Individual results

	Absorption (d = 1 cm)	mg/L
a1	0.0763	0.92
a2	0.0792	0.96
a3	0.0822	0.99

Conclusions:

Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)

Key value for chemical safety assessment

Water solubility:

0.96 mg/L

at the temperature of:

24 °C