This is to avoid confusion with another compound, iron (II) sulfite, FeSO3. Release to the environment of this substance can occur from industrial use: formulation of mixtures and formulation in materials. This information is only displayed if the substance is well–defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure. Metasilicic acid dianion. In most commonly encountered silicates, including almost all silicate minerals found in the Earth's crust, each silicon atom occupies the center of an idealized tetrahedron whose corners are four oxygen atoms, connected to it by single covalent bonds according to the octet rule. The name is also used for any salt of such anions, such as sodium metasilicate; or any ester containing the corresponding chemical group, such as tetramethyl orthosilicate. Please note: Precautionary measures and guidance on safe use concern the use and handling of the specific substance as such, not of the presence of the substance in other articles or mixtures. In chemistry, a silicate is any member of a family of anions consisting of silicon and oxygen, usually with the general formula [SiO(4−2x)−4−x]n, where 0 ≤ x < 2. This substance is used in the following products: washing & cleaning products, cosmetics and personal care products, coating products, fillers, putties, plasters, modelling clay, finger paints, inks and toners, metal surface treatment products, metal working fluids and polymers. EPA Registry Name: Bertrandite (Be4(OH)2O(SiO3)2) Molecular Weight: 238.23 Molecular Formula: Be.HO.O3Si.O Additional Metadata. Fluorphlogopite (Mg3K [AlF2O (SiO3)3]) - Substance Information - ECHA NB: Registration status and tonnage The REACH Registered substance portal was updated on 9th November 2020; the REACH registered factsheets were further updated on 21st December 2020. The use information is displayed per substance life cycle stage (consumer use, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites or in manufacturing). food packaging and storage, toys, mobile phones), stone, plaster, cement, glass or ceramic (e.g. Some substance identifiers may have been claimed confidential, or may not have been provided, and therefore not be displayed. The examples provided are generic examples and may not apply to the specific substance you are viewing. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas. These notifications can be provided by manufacturers, importers and downstream users. The family includes orthosilicate SiO4−4 (x = 0), metasilicate SiO2−3 (x = 1), and pyrosilicate Si2O6−7 (x = 0.5, n = 2). A substance may have its use restricted to certain articles or products and therefore not all the examples may apply to the specific substance. Sodium silicate is the technical and common name for a mixture of such compounds, chiefly the metasilicate, also called waterglass, water glass, or … Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 0.23 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 482.98 (Adapted Stein & Brown method) Melting Pt (deg C): 188.60 (Mean or Weighted MP) VP(mm Hg,25 deg C): 0 (Modified Grain method) … Another name for tin(IV) sulfite is stannic sulfite. When information is available in all sources, the first two are displayed as a priority. ECHA has no data from registration dossiers on the precautionary measures for using this substance. This is unique source of information on the chemicals manufactured and imported in Europe. Details of the improvements can be found at Dissemination Platform Updates. In a typical preparation, monomeric orthosilicate was found to react completely in 75 seconds; dimeric pyrosilicate in 10 minutes; and higher oligomers in considerably longer time. The nomenclature of binary covalent compounds follows these rules: These examples show how the rules … Biocidal Products Committee opinions on active substance approval, National authorisation and mutual recognition, Understanding the Waste Framework Directive, Tools to prepare and submit SCIP notifications, List of substances subject to the POPs Regulation, Draft recommendation for inclusion in the Authorisation List and consultation, Submitted restrictions under consideration, Harmonised classification and labelling targeted consultations, Consultations on ECHA Executive Director’s requests, PACT - Public Activities Coordination Tool, Information on Candidate List substances in articles, Candidate List of substances of very high concern for Authorisation, Registry of restriction intentions until outcome, Registry of SVHC intentions until outcome, Table of harmonised entries in Annex VI to CLP, Occupational exposure limits - Activity list, Harmonised classification and labelling (RAC), Chapter R.12: Use Descriptor system of ECHA Guidance on information requirements and chemical safety assessment, Guidance on the safe use of the substance, Previous consultations on ECHA’s Executive Director Requests to the Committees, Applications for authorisation consultations, Harmonised classification and labelling consultations, ECHA Executive Director’s requests related to the CLH process, Consultation on potential candidates for substitution, Consultation on derogation to the exclusion criteria, ECHA's Executive Director Requests to the Committees, Consultation on a draft recommendation for amendment of Authorisation List entries, Consultations in the authorisation process, Occupational exposure limits - Call for comments and evidence, Occupational exposure limits - Previous calls for comments and evidence, Occupational exposure limits – Consultations on OEL recommendation, Derogations for the protection of cultural heritage, ECHA's current activities on restrictions, ECHA's completed activities on restriction, Information on Candidate List substances in articles table, Information from the Existing Substances Regulation (ESR), PBT/vPvB assessments under the previous EU chemicals legislation, Adopted opinions and previous consultations on applications for authorisation, Adopted opinions on restriction proposals, Mapping exercise – Plastic additives initiative, Occupational exposure limits substance evaluations, List of substances subject to POPs Regulation, Small and Medium-sized Enterprises (SMEs), Practical examples of chemical safety reports, The REACH Registered substance portal was updated on 9th November 2020; the REACH registered factsheets were further updated on 21st December 2020. In fact, so common is the use of silicate minerals that traditional ceramics are often referred to as silicate ceramics, and their manufacture is often called the silicate industry. If no EU harmonised classification and labelling exists and the substance was not registered under REACH, information derived from classification and labelling (C&L) notifications to ECHA under CLP Regulation is displayed under this section. (SiO 2) y, such as sodium metasilicate Na 2SiO 3, sodium orthosilicate Na 4SiO 4, and sodium pyrosilicate Na 6Si 2O 7. ECHA maintains the C&L Inventory, but does not review or verify the accuracy of the information. For example, in the anion hexafluorosilicate SiF2−6, the silicon atom is surrounded by six fluorine atoms in an octahedral arrangement. Such notifications are required for hazardous substances, mixtures, or articles, manufactured or imported at over 1 kg per annum. The ‘Hazard classification and labelling’ section shows the hazards of a substance based on the standardised system of statements and pictograms established under the CLP (Classification Labelling and Packaging) Regulation. They exist in water solution, as mixtures of condensed and partially protonated anions, in a dynamic equilibrium. Appearance:White or gray or light pink powder. The InfoCard summarises the non-confidential data of a substance held in the databases of the European Chemicals Agency (ECHA). the electronic edition of the Official Journal of the European Union. The equilibrium can shifted towards larger anions by increasing the silicate concentration and/or the acidity of the medium. This substance is used in the following products: cosmetics and personal care products, biocides (e.g. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment. More information about Classification and Labelling is available in the Regulations section of ECHA website. disinfectants, pest control products), polishes and waxes, washing & cleaning products, air care products, fillers, putties, plasters, modelling clay, finger paints and coating products. Solid silicates are generally stable and well characterized. However, substance notifications in the InfoCard are aggregated independently of the impurities and additives. montmorillonite K 10 CAS 70131-50-9Typical Properties [2] The general processes in this equilibrium are hydrolysis/condensation. The correct total tonnage band can be found in the factsheet(s) for the substance. [3], The nature of soluble silicates is relevant to understanding biomineralization and the synthesis of aluminosilicates, such as the industrially important catalysts called zeolites.[2]. Start studying Chemical Compound Names Chemistry. 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. 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. floors, furniture, toys), plastic (e.g. This section provides links to the list of precautions (precautionary statements) and to the guidance on safe use, if they have been provided in REACH registration dossiers. The information is aggregated from the data coming from REACH substance registrations provided by industry. disodium tetraborate EC no. Learn vocabulary, terms, and more with flashcards, games, and other study tools. gloves, shoes, purses, furniture), paper (e.g. This section provides an overview of the calculated volume at which the substance is manufactured or imported to the European Economic Area (EU28 + Iceland, Liechtenstein and Norway). In chemistry, a silicate is any member of a family of anions consisting of silicon and oxygen, usually with the general formula [SiO 4−x] n, where 0 ≤ x < 2. Registration, Evaluation, Authorisation and Restriction of Chemicals, Chemical Agents Directive and Carcinogens or Mutagens Directive, EC Inventory, Registration dossier, Pre-Registration process, Other, Substances of very high concern identification, Recommendation for the Authorisation List, Getting started with EU chemicals legislation, Classification of substances and mixtures, Harmonised classification and labelling (CLH). Details of the improvements can be found at Dissemination Platform Updates. The ‘Hazard classification’ and labelling section uses the signal word, pictogram(s) and hazard statements of the substance under the harmonised classification and labelling (CLH) as its primary source of information. Common compound names. The revised Drinking Water Directive aims to protect citizens and the environment from the harmful effects of contaminated drinking water and to improve access to drinking water. Silicate anions in solution react with molybdate anions yielding yellow silicomolybdate complexes. The described Product category (i.e. plasters, cement), fabricated metal products, electrical, electronic and optical equipment and furniture. InfoCards are generated automatically based on the data available at the time of generation. Chemical compound - Chemical compound - Binary molecular (covalent) compounds: Binary molecular (covalent) compounds are formed as the result of a reaction between two nonmetals. Chemical name Synonyms Trade Secret CAS No Weight-% Valeriana Officinalis Rhizome/Root Extract Valeriana No 8057-49-6 25 - 30 alpha-D-Glucopyranoside, beta-D-fructofuranosyl alpha-D-Glucopyranosi de, beta-D-fructofuranosyl No 57-50-1 20 - 25 Talc (Mg3H2(SiO3)4) Talc (Mg3H2(SiO3)4) No … The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH). What is the Classification and Labelling Inventory? G. B. Alexander (1953): "The Reaction of Low Molecular Weight Silicic Acids with Molybdic Acid". Such silicates comprise most of Earth's crust and mantle, as well as the other terrestrial planets, rocky moons, and asteroids. This structure is also seen in the hexahydroxysilicate anion Si(OH)2−6 that occurs in thaumasite, a mineral found rarely in nature but sometimes observed among other calcium silicate hydrates artificially formed in cement and concrete submitted to a severe sulfate attack. Close Find out more on how we use cookies. The source of the information is mentioned in the introductory sentence of the hazard statements. Systematic Name: Bertrandite (Be4(OH)2O(SiO3)2) CAS Number: 12161-82-9. Atomic symbols are either 1 or two letters and don't necessarily resemble the english names of the element. Occupational exposure limit (OEL) values are derived within two legal frameworks that form an integral part of the EU’s mechanism for protecting the health of workers. DTXSID50165996 Soluble sodium silicates and mixtures thereof, known as waterglass are in fact important industrial and household chemicals. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment). This substance can be found in complex articles, with no release intended: vehicles, machinery, mechanical appliances and electrical/electronic products (e.g. Substances listed in the EINECS, ELINCS, or NLP inventories. This substance is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing and at industrial sites. dishes, pots/pans, food storage containers, construction and isolation material) and rubber (e.g. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. Assay: ≥99.0%. https://en.wikipedia.org/w/index.php?title=Silicate&oldid=991759884, Short description is different from Wikidata, Articles with unsourced statements from August 2018, Articles with unsourced statements from July 2010, Creative Commons Attribution-ShareAlike License, This page was last edited on 1 December 2020, at 18:02. Naming a Polyatomic Ion Understand what a polyatomic ion is. in case of consumer and professional uses). This information has not been reviewed or verified by ECHA, and may change without prior notice. In it, … This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 per annum. The orthosilicate anion, for example, is assumed to be the predominant form of silica naturally dissolved in seawater, whose concentration is below 100 parts per million; and also when silica is dissolved in an excess of sodium oxide at pH 12 or more. The Support section provides tools and practical guidance to companies which have responsibilities under the EU chemicals legislation. The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter. In these cases if there is a link to a REACH registered substance factsheet then the substance IS registered. The structure of such anions is commonly described and depicted as consisting of silicon-centered tetrahedra connected by their vertices, in such a way that each vertex is shared by at most two tetrahedra. Enter a chemical formula to calculate its molar mass and elemental composition: Molar mass of Bi2(SiO3)3 is 646.2119 g/mol Convert between Bi2(SiO3)3 weight and moles The precautionary measures and guidance on safe use are as submitted to ECHA by registrants under the REACH Regulation. cutting of textile, cutting, machining or grinding of metal) and of articles where the substances are not intended to be released and where the conditions of use do not promote release. Details of the improvements can be found at. The oxidation number of sulfite ion is 2-. The first letter is always a capital and the second (if present) is lower case. The CLP Regulation ensures that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union through classification and labelling of chemicals. The basic chemical unit of silicates is the (SiO4) tetrahedron shaped anionic group with a negative four charge (-4). Precautionary statements - describe recommended measures to minimise or prevent adverse effects resulting from exposure to a hazardous product or improper storage or handling of a hazardous product. [citation needed]. Chemical Substance. Chemical Name: montmorillonite K 10. : 70131-50-9. Other release to the environment of this substance is likely to occur from: indoor use (e.g. At very high pressure, even SiO2 adopts the six-coordinated octahedral geometry in the mineral stishovite, a dense polymorph of silica found in the lower mantle of the Earth and also formed by shock during meteorite impacts. disinfectants, pest control products). The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. The family includes orthosilicate SiO 4 (x = 0), metasilicate SiO 3 (x = 1), and pyrosilicate Si 2O 7 (x = 0.5, n = 2). The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. The anions are often polymeric. Other release to the environment of this substance is likely to occur from: outdoor use in long-life materials with low release rate (e.g. Wollastonite (Ca(SiO3)) (13983-17-0) Not listed on the United States TSCA (Toxic Substances Control Act) inventory 15.2. International regulations Wollastonite (Ca(SiO3)) (13983-17-0) Listed on the AICS (Australian Inventory of Chemical Substances) Listed on IECSC (Inventory of Existing Chemical Substances Produced or Imported in China) Substances which have been registered and can be placed on the EEA market by those companies with a valid registration. 1302-52-9 - NJJFVOQXYCEZLO-UHFFFAOYSA-N - Beryl - Similar structures search, synonyms, formulas, resource links, and other chemical information. [citation needed]. Silicate (SiO32-) 15593-90-5. dioxido(oxo)silane. United States Toxic Substances Control Act (TSCA) Inventory: Listed. Molecular Fomula: H2Al2(SiO3)4-nH2O. The compound is made by combining the ion tin(IV), which carries a charge of +4, with the ion sulfite, which is an atom of sulfur and three atoms of oxygen, carrying a total charge of -2. 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. Substances may have impurities and additives that lead to different classifications. For readability purpose, only non-confidential use descriptors occurring in more than 5% of total occurrences are displayed. If at least one company has indicated that the substance classification is affected by impurities or additives, this will be indicated by an informative sentence. The name is also used for any salt of such anions, such as sodium metasilicate; or any ester containing the corresponding chemical group, such as tetramethyl orthosilicate. Please upgrade your Internet Explorer to a newer version. ECHA organises consultations to get feedback from all interested parties and to gather the widest possible range of scientific information for the regulatory processes. This helps when it comes to deciphering the names of elements from the chemical formulas. metal, wooden and plastic construction and building materials) and indoor use in long-life materials with low release rate (e.g. Silicate anions are formally the conjugate bases of silicic acids. inside a watch) or with very low concentrations considered not to pose risks to human health or the environment. China Catalog of Hazardous chemicals 2015: Not Listed. [2][3] In higher concentrations or low pH, polymeric anions predominate. REACH regulation aims to improve the protection of human health and the environment from the risks that can be posed by chemicals. Silicates with alkali cations and small or chain-like anions, such as sodium ortho- and metasilicate, are fairly soluble in water. This section is based on three sources for information (harmonised classification and labelling (CLH), REACH registrations and CLP notifications). Example Reactions: • 2 FeCl3 + 3 Na2SiO3 = Fe2(SiO3)3 + 6 NaCl In that context, the term also includes the non-ionic compound silicon dioxide SiO2 (silica, quartz), which would correspond to x = 2 in the general formula. In the limit, the silicate anions merge into a tridimensional network of silicon tetrahedra, with most oxygen atoms occurring as covalent bridges; which is some form of silica, such as silica gel, mixed with water. This substance can be found in products with material based on: metal (e.g. The Prior Informed Consent Regulation administers the import and export of certain hazardous chemicals and places obligations on companies who wish to export these chemicals to non-EU countries. 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. Chemical Name US EPA SARA 313 Emission Reporting Antimony trioxide Listed Lead Phosphite Listed State Regulations Chemical Name New Jersey - RTK Pennsylvania - RTK California Prop. tyres, shoes, toys). Substances indicated, in 2009, as being intended to be registered by at least one company in the EEA. disinfectants, pest control products) and metal surface treatment products. Wollastonite (Ca (SiO3)) - Substance Information - ECHA NB: Registration status and tonnage The REACH Registered substance portal was updated on 9th November 2020; the REACH registered factsheets were further updated on 21st December 2020. In particular, the reaction is not observed with suspensions of colloidal silica. Use descriptors are adapted from ECHA guidance to improve readability and may not correspond textually to descriptor codes described in Chapter R.12: Use Descriptor system of ECHA Guidance on information requirements and chemical safety assessment. Note that for readability purposes, only the pictograms, signal words and hazard statements referred in more than 5% of the notifications under CLP are displayed. The molecular structure is based on structures generated from information available in ECHA’s databases. It has a molar mass of 278.83 grams per mole. If the substance is covered by more than one CLH entry (e.g. More information about the EC Inventory can be found here. This substance is used in the following products: coating products, fillers, putties, plasters, modelling clay, finger paints, inks and toners, polymers, cosmetics and personal care products, washing & cleaning products, biocides (e.g. 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). InfoCards are updated when new information is available. The purpose of the information provided under this section is to highlight the substance hazardousness in a readable format. Other articles where Silicate is discussed: traditional ceramics: Raw materials: …most cases these materials are silicates—that is, compounds based on silica (SiO2), an oxide form of the element silicon. If available, additional information on classification and labelling (C&L) is derived from REACH registration dossiers submitted by industry. REACH registration dossiers have greater data requirements (such as supporting studies) than do notifications under CLP. Silicic acids are generally very weak and cannot be isolated in pure form. Release to the environment of this substance can occur from industrial use: in the production of articles, in processing aids at industrial sites and as processing aid. This website uses cookies to ensure you get the best experience on our websites. the products in which the substance may be used) may refer to uses as intermediate and under controlled conditions, for which there is no consumer exposure. Silicates are extremely important materials, both natural (such as granite, gravel, and garnet) and artificial (such as Portland cement, ceramics, glass, and waterglass), for all sorts of technological and artistic activities. Polyatomic ions are simply ions that … It does not represent a new labelling, classification or hazard statement, neither reflect other factors that affect the susceptibility of the effects described, such as duration of exposure or substance concentration (e.g. Although there are no ions in these compounds, they are named in a similar manner to binary ionic compounds. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use. 215–540–4, is covered by three harmonisations: 005–011–00–4; 005–011–01–1 and 005–011–02–9), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. Which is another name for sodium silicate? Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically generated for the InfoCard. Examples of molar mass computations: NaCl , Ca(OH)2 , K4[Fe(CN)6] , CuSO4*5H2O , water , nitric acid , potassium permanganate , ethanol , fructose . EC Inventory: Listed. The POPs Regulation bans or severely restricts the production and use of persistent organic pollutants in the European Union. The term also includes minerals where aluminium or other tetravalent atoms replace some of the silicon atoms, as in the aluminosilicates. Guidance on safe use - recommendations by substance registrant on the proper use of the substance in various situations. Additionally, if available, information on the use of the substance and how consumers and workers are likely to be exposed to it can also be displayed here. It covers their hazardous properties, classification and labelling, and information on how to use them safely. clothing, mattress, curtains or carpets, textile toys), leather (e.g. Harmonisation is based on the substance’s physical, toxicological and eco-toxicological hazard assessment.