Zeolite, silica and sodium and titanium based, crystalline, synthetic, non fibrous

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13 Sep - 15 Nov 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Version / remarks:

1995

Qualifier:

according to guideline

Guideline:

EU Method A.6 (Water Solubility)

Version / remarks:

2008

Type of method:

flask method

Specific details on test material used for the study:

Storage conditions: dry at ambient temperature (10 - 30 °C)

Water solubility:

< 9.8 mg/L

Remarks on result:

other: Preliminary water solubiltiy test at room temperature, pH not specified.

Results
Preliminary Test

The preliminary test at room temperature showed, that the water solubility of the test item was < 9.8 mg/L. The observations of the preliminary test are summarized in Table 1.

Table 1 - Preliminary test for the water solubility

Amount of test item [mg]	Total volume of added water [mL]	Stirring time [min]	Remark
109.43	0.1	---*	not dissolved
	0.6	---*	not dissolved
	1.6	2*	not dissolved
	3.6	2*	not dissolved
	13.6	5*	not dissolved
	100	5*	not dissolved
9.22	100	1475	not dissolved
4.84	250	1475	not dissolved
4.90	500	1475	not dissolved

*The mixture was treated in an ultrasonic bath.

The solubility of the test item in water at room temperature was estimated to be < 9.8 mg/L.

Final Results

According to OECD Test Guideline 105 (1995) and Regulation EC No. 440/2008 Method A.6. the water solubility of the test item Na-ETS-4was estimated by performing the preliminary test to:
c_S < 9.8 mg/L

Description of key information

< 9.8 mg/L under ambient conditions (Flask method preliminary test, OECD 105)