is harmful in contact with skin, REACH registration dossiers have greater data requirements (such as supporting studies) than do notifications under CLP. machinery, mechanical appliances and electrical/electronic products (e.g. It covers their hazardous properties, classification and labelling, and information on how to use them safely. Example Reactions: Si3N4 = 3 Si + 2 N2 3 SiCl4 + 4 NH3 = Si3N4 + 12 HCl 3 SiCl4 + 16 NH3 = 12 NH4Cl + Si3N4 3 SiH4 + 4 NH3 = Si3N4 + 12 H2 :: Chemistry Applications:: Chemical Elements, Periodic Table Compound Name Formula Search . 2155404, is covered by three harmonisations: 005011004; 005011011 and 005011029), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. This information has not been reviewed or verified by ECHA, and may change without prior notice. 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. b. Select the correct answer. What is the chemical formula of trisilicon What is the chemical formula of trisilicon tetranitride? All rights reserved. Silicon nitride powder, 99.9+ trace metals 12033-89-5 - Sigma-Aldrich This substance is used in the following products: C*t3/3 + D*t4/4 E/t + F H If not, provide the compounds correct name. Predict whether the compound formed in each case is an ionic or a covalent compound. Ref. furniture. metal (e.g. The molecular structure is based on structures generated from information available in ECHAs databases. Data from NIST Standard Reference Database 69: The National Institute of Standards and Technology (NIST) 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. AsO4. Classify each compound as ionic or molecular. Guard your test and conduct yourself properly. manufacturing of the substance. 1. 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). BPR regulation aims to improve the functioning of the biocidal products market in the EU, while ensuring a high level of protection for humans and the environment. laboratory chemicals, This information is only displayed if the substance is well-defined, its identity is not claimed confidential and there is sufficient information available in ECHAs databases for ECHAs algorithms to generate a molecular structure. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance): Welcome to the ECHA website.
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