Titanium dioxide: new guide on classification and labelling

The classification and labelling requirements for titanium dioxide (TiO2) that came into force on 1 October 2021 are clarified in a new guide from ECHA.


The Guide on the classification and labelling of titanium dioxide specifies that TiO2 should be classified as follows:

Solid mixtures
If TiO2 can be inhaled, it must be classified as carcinogen (Carc. 2, H351 (inhalation)) when supplied on its own or in mixtures in powder form and containing 1% or more of TiO2 where TiO2 particles have an aerodynamic diameter ≤10 μm.

Furthermore, mixtures containing TiO2 must be labelled with the supplemental label element ‘Warning! Hazardous respirable dust may be formed when used. Do not breathe dust’ (EUH212).

Non-classified solid mixtures
Non-classified solid mixtures must be labelled with the EUH212 supplemental labelling element if they contain at least 1% of TiO2, regardless of their form or particle size.

Liquid mixtures
Liquid mixtures containing TiO2 do not require Carc. 2 classification. However, if they contain at least 1% of TiO2 particles with an aerodynamic diameter ≤10 μm, then they need to be labelled with the supplemental label element ‘Warning! Hazardous respirable droplets may be formed when sprayed. Do not breathe spray or mist’ (EUH211).

Only relevant for chemicals under CLP
The above classification and labelling requirements do not apply to medical devices, cosmetics and food.

If you have questions concerning classification and labelling you can get help from:

Ilaria de Rosa Carstensen  
Tel +45 4516 9369


Did you read our previous article about Titanium dioxide no longer safe as a food additive