One of the goals of the European REACH regulation is the progressive replacement of substances of very high concern (e.g. carcinogens) by safer alternatives. Companies that use these substances, actively search for safer alternatives (less dangerous substances, new technologies and processes), and report about these alternatives. Below you will find the information on possible alternatives for chromium trioxide, included in the different applications for authorisation received so far by ECHA. To obtain further details, please follow the link to the full dossier.
Below you can find possible alternatives for chromium (VI) trioxide for passivation of ETP. All alternatives refer to the chromium (VI) trioxide described below.
Chromium trioxide
- EC-number: 215-607-8
- CAS-number: 1333-82-0
- Use: Use of Chromium (VI) Trioxide for ETP.
- Technical function: Cr(VI) is used for the passivation on the surface of the tinplate forming Cr(III) oxide layer providing corrosion inhibition and ensuring a surface amendable to subsequent processing.
Most promising alternative:
- Alternative technology: CFPA -Chromium Free Passivation Alternative
Other Alternatives:
Different (groups of) companies have researched possible alternatives to replace chromium trioxide. Even if these alternatives may not have been chosen for their particular case, they may still be an appropriate option for other cases.
- Alternative substances:
- Cr(III)
- Zirconium oxides / Zr-Ti /organic Zirconates
More detailed information
All research efforts by companies have been documented in reports. The following ECHA-dossiers are available about possible alternatives for chromium trioxide as a plating agent for sanitary materials:
Factsheet Chromium VI
For more general information about the risks of Chromium VI and measures to take to prevent exposure, please have a look at the factsheet Chromium VI (available in many EU-languages).
