Search for nanomaterials

The new ECHA CHEM database has been released by ECHA. See for more information on the transition to ECHA CHEM.  More

Nanomaterials data shown here derives from the REACH registration data on the current Dissemination Platform, which is no longer maintained; it remains frozen as of 19th May 2023. Up-to-date REACH registration data is published only on ECHA CHEM. Unfortunately, there is no possibility to connect that data to this portal, nor for the time being to allow searches in ECHA CHEM by nanomaterials properties or inventories.

We appreciate your understanding during this transition period.


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