Chromic acid / Dichromic acid / Chromium trioxide

listed as SVHC candidates since 15.12.2010

Chromic acid, dichromic acid and chromium trioxide can be considered together. Both chromic acid and dichromic acid do not exist as pure substances. Both substances are formed when chromium trioxide is diluted in water. Chromium trioxide (chromic acid, dichromic acid) is used in chrome electrolytes based on chromium(VI) compounds.

The electrodeposited layer consists of metallic chromium, there is no co-deposition of Cr(VI). Therefore, there is no duty of notification according to Article 33 of Directive 1907/2006/EC (REACH).

Chromium trioxide (chromic acid, dichromic acid) is also used for the manufacture of chromating solutions. The addition of potassium hydroxide or sodium hydroxide leads to a partial neutralization of the solution, during which sodium chromate and potassium chromate are formed.

17 April 2013 - Inclusion in Annex XIV

Annex XIV of REACH has been amended by Regulation (EU) No 348/2013, with chromium trioxide, chromic acid and dichromic acid being subject to Authorisation. The sunset date, after which the substances cannot be used or manufactured in the EU without authorisation for a specific use is 21 September 2017. Applications for authorisation have to be submitted to ECHA until 21 March 2016.

Schlötter neither manufactures nor imports chromic acid. Instead, Schlötter buys chromic acid from suppliers or importers who joined the consortium seeking authorisation. Therefore, Schlötter can be regarded as downstream user. Assuming that authorisation is given by ECHA for a particular use of chromic acid it is our understanding  that the authorisation passes down the supply chain, i.e. that Schlötter can continue to use chromic acid for authorised uses. Schlötter itself is not planning to apply for authorisation.