Silicic acid, titanium salt

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

21. Jun. 2007 - 13. Oct. 2007

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP and Guideline conform

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2007

Report date:

2007

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Version / remarks:

resp. EU method A.6

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umweltschutz und Gewerbeschutz, Rheinland-Pfalz

Type of method:

column elution method

Test material

Test material information

Constituent 1

Reference substance name:

Silicic acid, titanium salt

EC Number:

255-911-8

EC Name:

Silicic acid, titanium salt

Cas Number:

42613-21-8

Molecular formula:

TiSixOy, where x and y are unspecified.

IUPAC Name:

titanium(4+) bis(oxosilanebis(olate))

Details on test material:

- Name of test material (as cited in study report): Magnapore 963
- Physical state/Appearance: black powder
- Analytical purity: 98%
- Composition of test material, percentage of components: Titansilicate + Chrom(III)hydroxide
- Lot/batch No.: LOT 405
- Expiration date of the lot/batch: 01. Sept. 2007
- Stability under test conditions: not stated
- Storage condition of test material: room temperature, keep dry
- Homogeneity: homogenous
- Production date: 01. Mar. 2006
- Additive: Chromium (III) hydroxide, CAS No. 1308-14-1

Results and discussion

Water solubility

Water solubility:

< 0.1 mg/L

Temp.:

20 °C

pH:

6

Details on results:

The measurements of both flow rates showed no detectable traces of titanium or chromium. Solublity of the test item in deionised water: < 0.1 mg/L.

Any other information on results incl. tables

Measurements at flow rate 25.0 mg/L

Sample	Concentration in mg/L		Difference to previous sample in %		pH
	Cr	Ti
1	< 20 µg/L	< 1.2 µg/L	not applicable		6
2	< 20 µg/L	< 1.2 µg/L	not applicable		6
3	< 20 µg/L	< 1.2 µg/L	not applicable		6
4	< 20 µg/L	< 1.2 µg/L	not applicable		6
5	< 20 µg/L	< 1.2 µg/L	not applicable		6

Measurement at flow rate 12.5 mg/L

Sample	Concentration in mg/L		Difference to previous sample in %	pH
	Cr	Ti
1	< 20 µg/L	< 1.2 µg/L	not applicable	6
2	< 20 µg/L	< 1.2µg/L	not applicable	6
3	< 20 µg/L	< 1.2 µg/L	not applicable	6
4	< 20 µg/L	< 1.2 µg/L	not applicable	6
5	< 20 µg/L	< 1.2 µg/L	not applicable	6