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Fluosilicic Acid

Properties. See how a fluosilicic acid solution acts on various indicators. Study the reaction of this solution with metals, namely, zinc and magnesium. [Pg.173]

Preparation. Assemble an apparatus as shown in Fig. 109. Mix 2 g of dry quartz sand with 2 g of calcium fluoride. Transfer the mixture into a Wurtz flask and add 15 ml of a 96% sulphuric acid solution. Close the flask with a stopper. The funnel must touch the surface of the water in the beaker. Heat the flask. What do you [Pg.173]

Fluor-jod, n. iodine fluoride, -kalium, n. potassium fluoride, -kalzium, n. calcium fluoride, -kiesel, m. silicon fluoride, -kie-selsaure,/. fluosilicic acid, -kohlenstoff, m. carbon fluoride, -lithium, n. lithium fluoride. -metall, n. metallic fluoride, -natrium, n. sodium fluoride, -phosphat, n. fluophosphate. -phosphor, m. phosphorus fluoride, -salz, n. fluoride, -schwefel, m. sulfur fluoride, -selen, n. selenium fluoride, -silber, n. silver fluoride, -silikat, n. fluo-silicate. -silizium, n. silicon fluoride, -sili-ziumverbindung, /. fluosilicate. -tantal-sMure, /. fluotantalic acid, -tellur, n. tellurium fluoride, -titan, n. titanium fluoride, -toluol, n. fluorotoluene, fluotoluene. [Pg.160]

SUiciumfluorwasserstoff, m., -saure,/. fluosilicic acid, -salz, n. fluoslUcate. siliciumfrei, a. silicon-free. [Pg.412]

Immediately after this deposit has been plated, a cracked chromium layer is applied from a dilute bath containing about 200 g/l of chromic acid at 46-52° C. The articles to be plated should enter the bath at a low voltage to prevent streakiness. Fluoboric or fluosilicic acid in the bath, in addition to sulphuric acid, helps to produce the required fine stress cracking. [Pg.551]

The covalently bonded solids such as silica cannot be easily broken by aqueous solutions. For example, the strong Si-O bonds silica is not dissolvable by boiling with concentrated acids except hydrofluoric acid because of the formation of silicon fluoride which is a gas and expels otherwise else it may form fluosilicic acid by reaction with water. [Pg.475]

Fluosilicic acid No data R4 R No data 40 data R R R R15 R No data... [Pg.924]

Used industrially for the manufacture of pure silicon, silane, and fluosilicic acid used to seal water out of oil wells during drillings. [Pg.339]

The product of the dissolution process of silicon electrodes in HF is fluosilicic acid, H2SiF6. In contrast to HF, H2SiF6 is mostly (75%) dissociated into Sily and 2H+ in aqueous solution at RT. The diffusion coefficient of the SiF at RT decreases from 1.2X10 5 cmV1 for 0.83 mol 1 1 to 0.45 cm2s 1 for 2.5 moll-1, with values of activation energy around 0.2 eV [We7]. [Pg.11]

Fluosilicic acid Formic acid Unknown 40-85 s s s s s s Potassium permanganate 20 s s s... [Pg.486]

Benzoic acid Solution s Fluosilicic acid Unknown s... [Pg.495]

Boric acid Unknown 1 Fluosilicic acid Unknown n... [Pg.531]

With hydrogen fluoride, the products are fluosilicic acid, H2SiFe, and hydrogen ... [Pg.821]

Aluminum Fluosilicate or Aluminum Silico-fluoride, Al2(SiF6)3 mw 480.83 wh pdr si sol in cold w sol in hot w. Can be prepd by treating alumina crihydrate with fluosilicic acid. Used for prepn of artificial gems, enamels glass... [Pg.509]

Ammonium Fluosilicate (Cryptohalite), (NH4)2SiF6 mw 178.17 wh crystn pdr sp 2.01, mp — sublimes sol in ale w. Can be prepd by interaction of Amm hydroxide with fluosilicic acid, followed by crystn. Used for glass etching, casting of light metals and electroplating... [Pg.509]

Fluorosilicates. Salts of FluosiLicic Acid, H2SiFe. See Aluminum-, Ammonium-, Barium-, Calcium -, Copper-, Lead-, Magnesium-, Potassium-, Sodium-, and Zinc Fluosilicates in this Section... [Pg.523]

Fertilizer Acid Filmerine Fish Oil Flaxseed Oil Flowers of Antimony Fluorine Fluoroethylene Fluorosilicic Acid Fluorosulfonic Acid Fluorosulfuric Acid Fluorspar Fluosilicic Acid Fluospar... [Pg.53]

Vinyl Fluoride, Inhibited Fluosilicic Acid Fluosulfonic Acid Fluosulfonic Acid Calcium Fluoride Fluosilicic Acid Calcium Fluoride Fluosulfonic Acid... [Pg.53]

Compound Name Oil Mineral Seal Ethyl Silicate Trichlorosilane Fluosilicic Acid Silicon Tetrachloride Dimethyl Polysiloxahe Silicon Tetrachloride Silver Acetate Silver Carbonate Silver Fluoride Silver Iodate Silver Fluoride Silver Nitrate Silver Oxide Silver Sulfate Cacodylic Acid Calcium Hydroxide Oil Road Sodium Amide Sodium... [Pg.82]

FLUOSILICIC ACID Fluorosilicic Acid, HexaRuosllicic Acid, Hydrofluosilicic Add, Sand Add, Silicofluoric Acid Corrosive Liquid, 11 3 0 0... [Pg.102]

See other pages where Fluosilicic Acid is mentioned: [Pg.415]    [Pg.223]    [Pg.183]    [Pg.70]    [Pg.161]    [Pg.243]    [Pg.943]    [Pg.918]    [Pg.930]    [Pg.372]    [Pg.36]    [Pg.229]    [Pg.302]    [Pg.306]    [Pg.447]    [Pg.157]    [Pg.157]    [Pg.185]    [Pg.339]    [Pg.408]    [Pg.510]    [Pg.529]    [Pg.532]    [Pg.544]    [Pg.55]    [Pg.371]    [Pg.70]    [Pg.133]    [Pg.232]    [Pg.173]   
See also in sourсe #XX -- [ Pg.55 , Pg.371 ]

See also in sourсe #XX -- [ Pg.70 ]

See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.4 , Pg.5 , Pg.6 , Pg.7 , Pg.8 , Pg.9 , Pg.10 , Pg.11 , Pg.12 , Pg.13 , Pg.14 ]

See also in sourсe #XX -- [ Pg.144 , Pg.145 ]

See also in sourсe #XX -- [ Pg.70 ]



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Acid Acetic Fluosilicic

Exercise 59. Fluosilicic Acid

Fluosilicic acid solutions

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