Zeolite, silica rich, crystalline, synthetic, non-fibrous

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

24 - 29 Jun 2010

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Basic data given

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Test guideline 1

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Test guideline 2

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.6 (Water Solubility)

GLP compliance:

no

Type of method:

other: similar to flask method

Test material

Test material information

Constituent 1

Reference substance name:

oxo[(oxoalumanyl)oxy]alumane silanedione hydrate sodium

EC Number:

930-985-0

Cas Number:

1318-02-1

Molecular formula:

M2/nO • Al2O3 • ySiO2 • wH2O (n is the valency of the cation M, predominantly Na, and for Na is n=1; y can range from 2 to 222, and w is the number of water molecules typically between 4 and 40. The composition based on the metals present in the zeolite is typically: Na: 0 - 19.0%, Al: 0,3 - 19.0%, Si: 16.6 - 46.1% (general composition); additionally, depending on the water quality: Ca, Mg and K might be present below 5%

IUPAC Name:

oxo[(oxoalumanyl)oxy]alumane silanedione hydrate sodium

Details on test material:

- Name of test material (as cited in study report): Zeolites, ZSM-5
- Framework: orthorhombic
- Related CAS number: 1318-02-1
- Analytical purity: > 99%
- Lot/batch No.: CC100338/1
- Expiration date of the lot/batch: 28 May 2012
- Storage condition of test material: room temperature 20 ± 5 °C

Results and discussion

Details on results:

All elements were below the detection limit of 0.01 mg/L. Only 130 mg/L sulphate as a carry over from the manufacturing process was detectable.
Although the study did not show, if the saturation equilibrium was reached during the shaking phase, it can be estimated, that the test substance was insoluble in water (lower than approx. 0.01 mg/L at 20 ± 0.5 °C).
.

Any other information on results incl. tables

All elements were below the detection limit of 0.01 mg/L (with the exception of Ni and V which had a decetion limit of 0.001mg/L)

Element	Value Water	Value Test Item
Al as Al2O3	n.d.	n.d.
Ca as CaO	n.d.	n.d.
Ce as CeO2	n.d.	n.d.
Fe as Fe2O3	n.d.	n.d.
Gd as Gd2O3	n.d.	n.d.
K as K2O	n.d.	n.d.
La as La2O3	n.d.	n.d.
Mg as MgO	n.d.	n.d.
Na as Na2O	n.d.	n.d.
Nd as Nd2O3	n.d.	n.d.
Ni as NiO	n.d.	n.d.
P as P2O5	n.d.	n.d.
Pr as Pr6O11	n.d.	n.d.
SO4	n.d.	0.13 g/L
Si as SiO2	n.d.	n.d.
Sm as Sm2O3	n.d.	n.d.
Ti as TiO2	n.d.	n.d.
V as V2O5	n.d.	n.d
Zn as ZnO	n.d.	n.d.