Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 236-921-1 | CAS number: 13548-38-4
Oxidising properties
Administrative data
Link to relevant study record(s)
Description of key information
Chromium trinitrate in 75 % water, as placed on the market, was not found to be an oxidizer. However, solid chromium trinitrate nonahydrate is considered to be an oxidiser.
Key value for chemical safety assessment
- Oxidising properties:
- yes
Additional information
The oxidising properties (liquid) analysis of the substance chromium trinitrate 75 % solution in water, as placed on the market, was performed according to EU A21. The mean pressure rise time of 7720 ms for the chromium trinitrate sample in water is longer than the mean pressure rise time of 4894 ms taken for the 65 % nitric acid reference sample. Thus, chromium trinitrate in 75 % water was not found to be an oxidizer. However, it can be reasonably assumed that chromium trinitrate nonahydrate, having almost an identical nitrate content as barium nitrate, the reference substance in EU-method A.17 for oxidising solids, is an oxidiser too and this is supported by the "UN Recommendations of the Transport of Dangerous Goods - Model Regulations, Twelfth revised Edition" entry under UN 2720 naming chromium trinitrate as an oxidiser, class 5.1, packaging group III. However, a valid test could not be identified.
Justification for classification or non-classification
Chromium trinitrate nonahydrate, in it's solid crystalline form, is considered being an oxidising solid, category 3 according to CLP (Regulation EC No 1272/2008) and according to DSD (Directive 67/548/EEC) classified as O, R8. However, as placed on the market in form of an 70 -75% aqueous solution, the aqueous mixture is not considered being oxidising as shown by an EU.A21 test for oxidising liquids.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
