![]() ![]() For uses 2 and 4, at least one of the key functionalities must be necessary for your use: Your use must also be consistent with the key functionalities listed in the authorisation decision. You must ensure that your use is consistent with the scope set in the authorisation decision.To do that, check that your drums of chromium trioxide are labelled with one of the following authorisation number: You must ensure that your supply of chromium trioxide is via the NPCC supply chain.In case of non-compliance, you are not covered by the authorisation. The authorisation decision impose a number of obligations on you, as a downstream user. Important information for downstream users covered by uses 1, 2 and 4:Īs a downstream user in the supply chain of NPCC, your uses of chromium trioxide according to uses 1, 2 and 4 are covered by REACHLaw’s authorisation until. It is now for the European Commission to decide on the authorisation for use 3. ECHA’s Socio-economic Committee has issued its opinion on the substitution plan in spring 2021. CTACSub received a similar request, and both parties submitted a substitution plan, identical in content, to ECHA during the autumn of 2020. įor use 3, the European Commission retroactively requested REACHLaw to submit a substitution plan in early 2020. These uses were granted authorisation until. Due to changes in the authorisation landscape, it took the European Commission more than three years to provide an authorisation for three uses – 1, 2 and 4. In May 2017, the ECHA Committees issued positive opinions on all four uses. The REACHLaw authorisation application was identical in content to the CTACSub application although fewer uses were covered. Use 4: Surface treatment (except ETP) for applications in various industry sectors namely architectural, automotive, metal manufacturing and finishing, and general engineering.Use 3: Functional chrome plating with decorative character.Use 1: Formulation of mixtures of chromium trioxide for functional chrome plating, functional chrome plating with decorative character and surface treatment (except ETP) for applications in various industry sectors namely architectural, automotive, metal manufacturing and finishing, and general engineering. ![]() Given the popularity of chrome plating as an extremely effective rust resistant means of preserving steel, chromium trioxide is used in everything from high end aluminum alloy performance car wheels to rifled barrels on high end firearms.In March 2016, REACHLaw as Only Representative (OR) for Joint Stock Company Novotroitsk Plant of Chromium Compounds (NPCC) submitted an upstream application for authorisation covering four uses of chromium trioxide by downstream users in its supply chain. Mass quantities of this substance are produced each year using this method, often as much as 100 million kilograms or more. To produce chromium trioxide, quantities of sodium chromate (chrome salt) or sodium dichromate are treated with sulfuric acid. Due to its potent nature as an oxidiser, chromium trioxide is also classified as a potential carcinogen according to numerous industrial exposure studies. The primary industrial use of chromium trioxide is used in various metal industries for chrome electroplating. Dark purple under anhydrous conditions, chromium trioxide turns a bright orange when added to aqueous solutions, and is soluble in water concomitant with hydrolysis. Inorganic in nature, this compound is the acidic anhydride derived from chromic acid, and is often marked under that name when labelling. ![]()
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