REACH - Applications for authorisation AFA022-01 CrO3

Closed 3 Nov 2022

Opened 8 Sep 2022


Public consultation on alternatives

Reference: AFA022-01

Applicant: TCL Manufacturing Ltd (trading as Perrin & Rowe)

Application type: Initial

Substance name: Chromium Trioxide

EC Number: 215-607-8

CAS Number: 1333-82-0

Proposed use: Industrial use of chromium trioxide for functional chrome plating with decorative character for sanitary applications.

Broad information on use applied for (conditions of use and function): 

Perrin & Rowe uses chromium trioxide in an electroplating process to apply a metallic chrome coating on brass substrates to create a hard and durable finish of a brilliant silver with a hint of blue. The process is described as functional chrome plating with decorative character, a form of surface treatment that involves depositing a thin coating of metallic chrome from a chromium trioxide electrolyte on the surface of a brass component following product-specific underplates. The final metallic chrome coating is free of Cr(VI). Production takes place at one site (Wolverhampton) where a range of different articles for sanitary applications are produced. Additional information on the use applied for and the production process is given in the Chemical Safety Report (CSR) and Analysis of Alternatives (AoA). Operational Conditions (OCs) and Risk Management Measures (RMMs) are described in the CSR and OC/RMM summary table. Information on key functionalities of chromium trioxide is given in the AoA.

List of descriptors:

  • Life cycle stage: IS (Use at industrial sites)
  • Sector of end use (SU): 15 (Manufacture of fabricated metal products) 
  • Environmental release category (ERC): 6B 
  • Process category (PROC): 1, 3, 8b, 9, 15, 28 
  • Product category (PC): 14 (Metal surface treatment products) 
  • Article category related to subsequent service life (AC): N/A
  • Technical Function: Plating agent

Annual tonnage used: 

  • 100kg- 1 tonne/annum

Review period requested: 10 years

How to submit comments

Provide some basic information on possible alternative(s) in the online survey below but more detailed information should be provided in document(s) prepared using the commenting templates in the related section below. A “public version” should always be completed and will be published after the consultation has closed. If you want to include confidential information in your submission, please additionally complete a “confidential version” and submit both versions as attachments.

The consultation lasts for 8 weeks (unless otherwise specified) and closes at 23:59 London time (BST).


  • Applications for authorisation


  • Registration, Evaluation, Authorisation & restriction of CHemicals (REACH)