Reaction mass of Fatty acids, montan-wax and Fatty acids, montan-wax, sodium salts and Montan wax

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

04 Oct 2011 to 06 March 2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study (OECD TG 105).

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2012

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.6 (Water Solubility)

GLP compliance:

yes (incl. QA statement)

Type of method:

flask method

Test material

Test material information

Constituent 1

Reference substance name:

Montan waxes, type NaV 101

IUPAC Name:

Montan waxes, type NaV 101

Details on test material:

Test substance: Licomont NaV 101

Results and discussion

Water solubility

Water solubility:

ca. 20 mg/L

Temp.:

20 °C

pH:

>= 6.3 - <= 6.4

Details on results:

See below.

Any other information on results incl. tables

4.4. Individual Results

4.4.1. Preliminary Visual Estimation of the Water Solubility

Different amounts of the test item were stirred 100 ml and 500 ml distilled water, respectively and the mixtures were visually checked for any undissolved parts.

Table 1: Appearance of the test mixtures

Amount of test item in mg       Total volume in ml       Appearance of mixture

9.9                                          100                            undissolved 1)

10.4                                        500                           undissolved 1)

21                                          500                              undissolved 1)

1): After adding the indicated amount of water, the solution was stirred for approx. 24 h.

From the preliminary visual experiments the solubility of the test item in water appeared to be 4.2 mg/l (without correction for the purity).

4.4.4. Determination of the Solubility in water: Flask Methods

Table 2: Solubility of the test item in water — experiments A to D

Experiment	A	B	C	D (blank)
Amount of test item (mg)	15.9	16.2	15.8	-
Stirring time at 30 °C (h)	24	48	72	72
pH at 24 °C	6.4	6.3	6.4	5.7
Weight residue in flask (g)	0.003	0.004	0.004	0.000
Measured concentration (g/kg)	0.016	0.023	0.022	-
Water solubility (g/L)^1)	0.016	0.023	0.022	-

¹⁾   For the evaluation of the water solubility the measured concentration of experiment D (blank) was subtracted from the measured concentrations of the experiments A to C. The results were converted using the density of water at 20 °C (0.998 g/cm³).

 

The water solubility of the test item was determined to be: c (water, sat.) = 0.02 g/L

The water solubility is low and near the sensitivity of the method.

Applicant's summary and conclusion

Conclusions:

Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
The water solubility of the test item was determined to be 0.02 g/L.

Executive summary:

The water solubility of the test substance was determined according to the OECD Test Guideline 105. The water solubility of the test item is 0.02 g/L.