Silicic acid, aluminum sodium salt

Stability: thermal, sunlight, metals

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

thermal stability

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

Qualifier:

according to guideline

Guideline:

other: EU-Method 26433

GLP compliance:

yes (incl. QA statement)

Remarks:

(Landesamt für Umwelt-, Wasserwirtschaft und Gewerbeaufsicht, Rheinland-Pfalz)

Test substance thermally stable:

yes

Key result

Operating temp.:

>= 0 - <= 520 °C

Sublimation:

no

Transformation products:

no

Test substance stable to sunlight:

not determined

Test substance stable to metals / metal ions:

not determined

Conclusions:

In the observed temperature range 0-520 °C the test item showed no thermal instability, only an endotherm transition occured attributed to the loss of water beginning at 260°C. As no exothermic events occured, the test item is not self-reactive.

Executive summary:

During the DSC run only an endothermic thermal transition was observed, which could be caused by loss of water beginning at approx. 260 °C. After the test the test item remained visually unchanged.

As no exothermic events could be observed the test item is no subject to the classification procedures for self-reactive substances and the acceptance procedures for Class 1 explosives need not to be applied.

Reference 2

Endpoint:

thermal stability

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Description of key information

Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS) is an inert inorganic solid with a melting point greater than 300 °C.

Also, in the observed temperature range, 0-520 °C the read-across substance Silicic acid, aluminum magnesium sodium salt (CAS 12040-43-6, SMAS) showed no thermal instability, only an endotherm transition occurred attributed to the loss of water beginning at 260°C. As no exothermic events occurred, the read-across substance is not self-reactive.

Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS) does not contain any chromophore groups. Thus, no photochemical reactivity induced by sunlight is to be expected.