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New Data Availability System

A new Data Availability System is being developed by ECHA. To begin with this system will take over the responsibility of making REACH registration data available, once it is ready. We expect the first version to be publicly available by the end of January 2024.

Since ECHA aims to devote our maximum effort to this new system, we can no longer maintain REACH registration data on the current Dissemination Platform. As such once the IUCLID format change begins on 19th May 2023 we will no longer update REACH registered substance factsheets. The factsheets will remain online, but will not be updated.

As a consequence, REACH registration data will likewise not be updated in Infocards, Brief Profiles, the Advanced search, or the Nanomaterials on the EU market portal. We will inform you of what you can expect in the new System, along with details of when and where to find it.

We appreciate your understanding in the meantime.

Aluminium hydroxide

EC/List no: 244-492-7 CAS no: 21645-51-2
REACH Registration No
EU cosmetics inventory Yes
Belgian nano inventory Yes
French nano inventory Yes
Belgian inventory ≥ 10 to < 100 tonnes per annum
French inventory ≥ 10 to < 100 kg per annum
Uses information
Environmental release category ERC 1: Manufacture of substances
ERC 4: Industrial use of processing aids in processes and products, not becoming part of articles
ERC 8a: Wide dispersive indoor use of processing aids in open systems
Article Category AC 0: Other
Product Category PC 0: Other
PC 9b: Fillers, putties, plasters, modelling clay
Process Category PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
PROC 7: Industrial spraying
PROC 10: Roller application or brushing
Sector of Use SU 0: Other
SU 9: Manufacture of fine chemicals
SU 11: Manufacture of rubber products
SU 12: Manufacture of plastics products, including compounding and conversion
SU 17: General manufacturing, e.g. machinery, equipment, vehicles, other transport equipment
SU 19: Building and construction work
Belgian Inventory Uses (NACE) AC 0
ERC 8a
PC 0
PC 9a
PC 9b
SU 11
SU 12
SU 17
SU 9
REACH Nanoform Characterisation
Nanoform type
Crystallinity Structure
Shape category
Specific surface area
Surface treatment / functionalisation
Surface treating agent ID