Silicic anhydride

Silicon Dioxide (Quartz, Lechatelierite, Tri-dymite, Silica, Silicic Anhydride, Rock Crystal, Cristobalite, Sand). Si02, mw 60.08,... 

Ad 116) Sh. Nakahara et al, JapanP 16147 (1963) CA 60, 6696(1964) (A priming compn for electric detonators is made from a granular mixt of Diazodinitrophenol, fine silicic anhydride, l O-repellent Al silicate, a silicone oil, and a binder, such as NC dissolved in AmOAc) Ad 117) Sh. Nakahara et al, JapanP 16149(1963) CA 60, 15676(1964) (Correction to previous patent) Ad 118) A.E. Lemke, GerP 1158884(1963)... 

Beaotion.—Inflames spontaneously in air, producing water and silicic anhydride —... 

By heating a mixture of carbon and silicic anhydride in a stream of chlorine —... 

The soluble alk e silicates may be. prepared by fusing silicic anhydride, in the form of sand or ts, or insoluble natural siUcatcs, with allcaline hydrates or carbonates. 

I. A quo-acids and Nitric acid. Sulphuric acid Carbonic acid Orthoailicic acid. Silicic anhydride. ... 

In the ordinary process the slag is allowed to flow off continuously. It then shows a diminution in phosphoric and silicic anhydrides and an increase in lime and total iron as the carbon and phosphorus in the metal diminish say from 1 77 and 1-30 per cent, respectively to 0-09 and 0-023 per cent, (see Table II.). 

SYNS ACTICEL AEROSIL AMORPHOUS SILICA DUST AQUAFIL CAB-O-GRIP II CAB-O-SIL CAB-O-SPERSE CATALOID COLLOIDAL SIUCA COLLOIDAL SILICON DIOXIDE DAVISON SG-67 DICALITE DRI-DIE PESTICIDE 67 ENT 25,550 FOSSIL FLOUR FUMFX) SILICA FUMED SILICON DIOXIDE O LUDOX NALCOAG NYACOL NA ACOL 830 NYACOL 1430 SANTOCEL SG-67 SIUCA, AMORPHOUS SILICIC ANHYDRIDE SIUCON DIOXIDE (FCQ SIUKILL VULKASIL... 

Aerosil Cab-O-Sil Cab-O-Sil MSP-, colloidal silica fumed silica light anhydrous silicic acid silicic anhydride silicon dioxide fumed Wacker HDK. 

Preparation.—By beating together silicic anhydride, calcic fluoride, and snlphurio aotds—... 

Silicon Dioxide. Silica silicic anhydride. 02Si mol wt 60.09. O 53.25%, Si 46.75%. Si02. Occurs in nature as agate, amethyst, chalcedony, cristobalite, flint, quartz, sand, tridymite. Reviews Several authors in Kirk-Othmer Encyclopedia of Chemical Technology vol. 18 (Interscience. New York, 2nd ed., 1969) pp 46.111 Rochow in Comprehensive Inorganic Chemistry vol. 1, I. C. Bailar, Jr. et al Eds. (Pergamon Press, Oxford, 1973) pp 1388-1402. 

Discussion Various silicic acids are known, which may be regarded as hydrates of silicon dioxide. Unlike the cases which have already been studied, these acids can not be prepared by the action of the anhydride on water, because silicic anhydride is extremely insoluble. They may be formed, however, by the double decomposition between, a silicate and an acid, the particular silicic acid produced being dependent on the substances used, and on their concentration and temperature. The fully hydrated orthosilicic acid, H4Si04, is a jelly, which can be completely dehydrated upon heating. 

NYACOL SANTOCEL SILICA AEROGEL SILICA, AMORPHOUS SILICIC ANHYDRIDE SILICON DIOXIDE SILIKILL SYNTHETIC AMORPHOUS SILICA VULKASIL... 

CAS 14808-60-7 EINECS/ELINCS 238-878-4 Synonyms Agate Amethyst Chalcedony Crystalline silica Flint Free crystalline silica Onyx Pure quartz Quartz glass Rose quartz Sand Sea sand Silica Silica, crystalline quartz Silica flour Silica glass Silica, quartz Silicic anhydride Silicon dioxide Classification Inorg. silicon compd. 

Synonyms Silicic anhydride Silicium dioxide Silicon dioxide Classification Inorganic oxide... 

CAS 112945-52-5 EINECS/ELINCS 231-545-4 Synonyms Amorphous silica dust Cl 77711 Colloidal silica Colloidal silicon dioxide Eossil flour Eumed silica Fumed silicon dioxide Pigment white 27 Silica, amorphous Silica, amorphous fumed Silica, pyrogenic Silicic anhydride Silicon dioxide Definition High surface area aggregate particles of silica, with min. 89.5% SiOj content Empirical OjSi Formula SiOj... 

Synonyms Agate Chalcedony Rose quartz Silica, crystalline quartz Silicic anhydride Silicon dioxide... 

Silicic anhydride Silicium dioxide. See Silica Silicochloroform. See Trichlorosilane Silicon... 

Silicon Dioxide occurs in nature as agate, amethyst, chalcedony, flint, quartz, sand, and tridymite. Silicon dioxide is obtained by acid precipitation from a sodium silicate solution to yield veiy fine particles. If silicon dioxide is obtained by the addition of sodium silicate to a mineral acid, the product is termed a silica gel. The pharmaceutical industry uses colloidal silicon dioxide, which is a submicroscopic fumed silica prepared by the vapor phase hydrolysis of a silica compound, such as silicon tetrachloride. Other names for colloidal silicon dioxide include light anhydrous silicic acid, silicic anhydride, and silicon dioxide fumed. Colloidal Silicon Dioxide NF must meet the following standards ... 

Silicic acid, disodium salt. See Sodium metasilicate Silicic acid hydrate Silicic acid hydrated. See Silica, hydrated Silicic acid, potassium salt. See Potassium silicate Silicic acid, sodium salt. See Sodium silicate Silicic anhydride Silicium dioxide. See Silica Silicon dioxide. See Novaculite Quartz Silica, fumed Silica Silicon dioxide, diatomaceous. See Diatomaceous earth Silicone... 

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