Substance Information
Substance Information
Data platform availability banner - infocard, search, nanomaterias
New Data Availability System
A new Data Availability System is being developed by ECHA. To begin with this system will take over the responsibility of making REACH registration data available, once it is ready. We expect the first version to be publicly available by the end of January 2024.
Since ECHA aims to devote our maximum effort to this new system, we can no longer maintain REACH registration data on the current Dissemination Platform. As such once the IUCLID format change begins on 19th May 2023 we will no longer update REACH registered substance factsheets. The factsheets will remain online, but will not be updated.
As a consequence, REACH registration data will likewise not be updated in Infocards, Brief Profiles, the Advanced search, or the Nanomaterials on the EU market portal. We will inform you of what you can expect in the new System, along with details of when and where to find it.
We appreciate your understanding in the meantime.
Substance Infocard
Copper dichlorate
EC / List no.: 238-767-0
CAS no.: 14721-21-2
Mol. Formula: Cl2CuO6

Regulatory context
Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):
- ECHA Legislations
- Occupational Exposure limits (OELs)
- Emission Limit Values (ELVs)
- Other chemical legislations
-
Substances indicated, in 2009, as being intended to be registered by at least one company in the EEA.
-
Substances listed in the EINECS, ELINCS, or NLP inventories.
-
Quality Criteria for Drinking WaterEU. Quality Criteria for Water for Human Consumption, Directive (EU) 2020/2184, OJ L 435, 23 December 2020
The Drinking Water Directive 2020/2184 concerns the quality of water intended for human consumption. Drinking water is wholesome and clean if it’s: (a) free from any micro-organisms and parasites and from any substances which, in numbers or concentrations, constitute a potential danger to human health; (b) meets the minimum requirements set out in Parts A, B and D of Annex I. Indicators parameters set out in Part C of Annex I shall also be monitored, as they can help to identify water treatment.
-
Annexes II, III, IV, VII - Defined & Temporary Maximum Residue LevelsEU. Pesticides. Maximum Residue Levels: Annexes II, III, IV, VII, Regulation 396/2005/EC, last amended by Regulation (EU) 2023/679, OJ L 86, 24 March 2023
This list contains the maximum residue level (MRLs) entries as listed in the following annexes of Regulation (EC) No 396/2005 on maximum residue levels of pesticides in or on food and feed of plant and animal origin and amending Council Directive 91/414/EEC: (1) Annex II: Maximum Residue Levels; (2) Annex III: Temporary MRLs; (3) Annex IV: Active Substances for Which No MRLs Are Required; and (4) Annex VII: Active Substance/Product Combinations.

Substance names and other identifiers

This substance has been identified as member of the following groups of substances:
Name | EC / List no. | CAS no. | Association |
---|---|---|---|
Chlorate | - | 14866-68-3 | Official source |
[No public or meaningful name is available] | - | - | Expert judgement (ECHA) |