The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. More information about CAS and the CAS registry can be found here. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. CAS (Chemical Abstract Service) registry number The EC or list number is the primary substance identifier used by ECHA. If the substance was not covered by the EC Inventory, ECHA attributes a list number in the same format, starting with the numbers 6, 7, 8 or 9. More information about the EC Inventory can be found here. The EC Inventory is a combination of three independent European lists of substances from the previous EU chemicals regulatory frameworks (EINECS, ELINCS and the NLP-list). The EC Number is the numerical identifier for substances in the EC Inventory. Some substance identifiers may have been claimed confidential, or may not have been provided, and therefore not be displayed. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas. Costanza Rovida ( and Dr.The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. TEAM mastery is a leading Italian expert with a history of 4 Authorisations and a review dossier and can assist all users involved in accurately identifying their use and completing the necessary declarations for ECHA!įor more information, please contact Dr. Evidence of the correct application of the exposure scenarios and the monitoring carried out in the workplace must be included in a report that must be sent to ECHA and that must remain available in the company in case of controls by local authorities. This should be done within six months and then renewed annually until the permit expires in 2024. Very important is then to complete this request with experimental data on the exposure of their workers to CrVI and the presence of CrVI in discharges and emissions. At this point, and within three months from the first supply in 2021, you must notify ECHA on the REACH-IT portal that you want to benefit from the authorisation granted to your supplier. Once the exposure scenario has been retrieved from the supplier, it must be verified that the conditions indicated are met. OBLIGATIONS AND DEADLINESĭownstream users wishing to benefit from this authorisation, must first identify their supplier and their use among those authorised. These include missing Use 3 related to functional plating with decorative character for which additional information has been requested, resulting in a delay in the permitting process that will hopefully come in the next few months. Use 5: Surface Treatment other than Passivation of Tin Plated Steel – Other Industries.Use 4: Surface treatment other than use 2 or use 3, specific for aerospace industry.Use 1: Formulation of Uses 2, 4, 5 and 6.WHAT ARE THE AUTHORIZED USES OF CHROMIUM TRIOXIDEīasically, the authorised uses for chromium trioxide are: The members of the consortium have been granted this authorisation: WHICH COMPANIES ARE AUTHORIZED FOR NEW USES After a procedure that took more than five years, the European Commission has finally authorised five of the six uses submitted of chromium trioxide (CrO3, EC 215-607-8 CAS ) by the CTACSub Consortium.
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