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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Physical & Chemical properties

Auto flammability

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auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 May 2010-09 July 2010
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
This study has been performed according to EC/DIN/IEC guidelines and according to GLP principles. Test substance is adequately characterised. Therefore full validation applies.
according to guideline
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
according to guideline
other: Deutsches Institut für Normung (DIN), DIN Guide 51794: "Determining the Ignition Temperature of Petroleum Products", May 2003.
according to guideline
other: International Electrotechnical Commission (IEC), IEC standard 79-4: "Electrical Apparatus for Explosive Gas Atmospheres, Part 4, Method of Test for Ignition Temperature", 1975.
GLP compliance:
yes (incl. QA statement)
Remarks on result:
not determinable because of methodological limitations

Ignition of the test substance was not observed at any temperature.

Not auto-ignitable.
Executive summary:

The auto-ignition temperature of aluminium chloride hydroxide sulphate (as aqueous solution) was investigated according to EC/DIN/IEC guidelines, using commercially available apparatus. No auto-ignition was observed up to the maximum testing temperature of 650°C.

Description of key information

No auto-ignition was observed up to the maximum testing temperature of 650°C (aqueous solution as manufactured).

No particular hazard is anticipated in normal conditions of storage and use.

Key value for chemical safety assessment

Additional information

A fully reliable experimental study, conducted according to a recognized EC/DIN/IEC method and under GLP, is available. It is therefore considered as a key study. As no auto-ignition was observed in test conditions, no key data can be retained for purpose of CSA.

This parameter is not relevant for classification according to CLP criteria, however the information is useful regarding potential additional fire hazard.