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Silicon dioxide

Silicon dioxide Suppliers list
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Email: info@dakenchem.com
Products Intro: Product Name:Silicon dioxide
CAS:112945-52-5
Purity:99% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Email: info@tianfuchem.com
Products Intro: CAS:112945-52-5
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Email: sales@mainchem.com
Products Intro: Product Name:Silicon dioxide
CAS:112945-52-5
Company Name: J & K SCIENTIFIC LTD.  
Tel: 400-666-7788 +86-10-82848833
Email: jkinfo@jkchemical.com;market6@jkchemical.com
Products Intro: Product Name:Silicon(IV) oxide, 99+%, 0.012 micron (fumed colloidal silica)
CAS:112945-52-5
Purity:99+% Package:100g;500g
Company Name: Meryer (Shanghai) Chemical Technology Co., Ltd.  
Tel: +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
Email: sh@meryer.com
Products Intro: Product Name:SILICON DIOXIDE, aMorphous
CAS:112945-52-5
Package:500g;2kg Remarks:SIS6960.0
Silicon dioxide Basic information
Product Name:Silicon dioxide
Synonyms:acticel;SILICA GEL 7G;SILICA GEL 8-20 MESH;SILICA GEL 12-28 MESH;SILICA GEL 100;SILICA GEL 60;SILICA GEL 30;SILICA GEL 60 G
CAS:112945-52-5
MF:O2Si
MW:60.08
EINECS:
Product Categories:metal oxide;UVCBs-inorganic
Mol File:112945-52-5.mol
Silicon dioxide Structure
Silicon dioxide Chemical Properties
Melting point >1600°C
density 2.3 lb/cu.ft at 25 °C (bulk density)(lit.)
refractive index n20/D 1.46(lit.)
form powder
CAS DataBase Reference112945-52-5(CAS DataBase Reference)
EPA Substance Registry SystemSilica, amorphous, fumed, cryst.-free(112945-52-5)
Safety Information
Safety Statements 24/25
WGK Germany 2
RTECS VV7310000
TSCA Yes
MSDS Information
Silicon dioxide Usage And Synthesis
Chemical PropertiesAmorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
Safety ProfilePoison by intraperitoneal, intravenous, and intratracheal routes. Moderately toxic by ingestion. An inhalation hazard. Much less toxic than crystalhe forms. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. Does not cause silicosis. See also other silica entries
Potential ExposureAmorphous fumed silica is used as a mineral, natural or synthetic fiber. A potential danger to those involved in the production and handling of fumed silica for paint pigments or catalysts. Diatomaceous earth is used in clarifying liquids, in manufacture of fire brick and heat insulators; used as a filtering agent; as a filler in construction materials; pesticides, paints, and varnishes. A potential danger to those involved in mining of diatomaceous earth or fabrication of products there from.
First aidIf this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. If this chemical has been inhaled, remove from exposure. Transfer promptly to a medical facility.
Purification MethodsPurification of silica for high technology applications uses isopiestic vapour distillation from concentrated volatile acids and is absorbed in high purity water. The impurities remain behind. Preliminary cleaning to remove surface contaminants uses dip etching in HF or a mixture of HCl, H2O2 and deionised water [Phelan & Powell Analyst 109 1299 1984].
IncompatibilitiesSilica, amorphous is a noncombustible solid. Generally unreactive chemically. Incompatible with fluorine, oxygen difluoride, chlorine trifluoride. Soluble in molten alkalis and reacts with most metallic oxides at high temperature.
Waste DisposalSanitary landfill.
Tag:Silicon dioxide(112945-52-5) Related Product Information
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