Calcium hexafluorosilicate

SYNS CALCIUM FLUOROSILICATE CALCIUM FLUOSILICATE CALCIUM HEXAFLUOROSILICATE SILICATE(2-), HEXAFLUORO-, CALCIUM (1 1) (9C1)... [Pg.273]

Ba308V2 barium orthovanadate 39416-30-3 25.00 5.1400 1 729 CaF6H402Si calcium hexafluorosilicate dihydrate 16925-39-6 25.00 2.2500 1... [Pg.298]

Calcium hexafluorosilicate dihydrate CaSiF3-2H30 16926-39-6 218.186 col tetr cry 2.26 0.62 i ace reac hot EIjO... [Pg.697]

Calcium 2,4-hexadienoate. See Calcium sorbate Calcium hexafluorosilicate. See Calcium silicofluoride... [Pg.683]

Synonyms Calcium fluorosilicate Calcium fluosilicate Calcium hexafluorosilicate ... [Pg.709]

Heavy water, see Hydrogen[ H] oxide Heazlewoodite, see rn-Nickel disulfide Hematite, see Iron(III) oxide Hermannite, see Manganese silicate Hessite, see Silver telluride Hieratite, see Potassium hexafluorosilicate Hydroazoic acid, see Hydrogen azide Hydrophilite, see Calcium chloride Hydrosulfite, see Sodium dithionate(III)... [Pg.274]

The fluoride portion is either removed as gaseous silicon tetrafluoride, if silica is added, or as the sparingly soluble sodium hexafluorosilicate, which remains with the calcium sulfate. [Pg.90]

The fluoride portion is either removed as gaseous silicon tetrafluoride, if silica is added, or as the sparingly soluble sodium hexafluorosilicate, which remains with the calcium sulfate. There are several variants of the Dorr process, which differ according to the treatment of the calcium sulfate. Some variants produce the dihydrate, gypsum others produce the hemihydrate. The variants also differ in the concentration of the phosphoric acid produced, but it is never more than 43%. The basic process was patented by Lawes in England in 1842, but the presendy used variant was developed by the Dorr-Oliver company in the 1930s. [Pg.111]

BaSiF6 barium hexafluorosilicate 17125-80-3 25.00 4 2900 1 715 CaCI2H402 calcium chloride dihydrate 10035-04-8 25.00 1.8500 1... [Pg.298]

Fluorine occurs in waters largely in the form of the simple anion F, sometimes also as hexafluorosilicates SiFg and complex compounds with metals, particularly with Fe(III) and Al(III) (fluoroferrates and lluoroalumi-nates). The concentration of fluorides in waters is limited by the solubility of CaF2 and MgF2. As CaF2 is less soluble than MgF2 the equilibrium concentration of fluorides in water depends primarily on the concentration of calcium. [Pg.84]

Barium hexaferrite. See Barium ferrite Barium hexafluorosilicate Barium hexafluorosilicate (2-). See Barium fluosilicate Barium hydroxide. See Barium hydroxide lime Barium hydroxide lime CAS 17194-00-2 (anhyd.) 12230-71-6 (octahydrate) EINECS/ELINCS 241-234-5 Synonyms Barium dihydroxide Barium hydroxide Caustic baryta Definition Mixt. of barium hydroxide octahydrate and calcium hydroxide Empirical BaH202 Formula Ba(OH)2... [Pg.385]

Elementary phosphorus is manufactured by reduction of apatite with coke in electric furnaces at a temperature of 1400-1500°C. Quartz is also present in the charge. It reacts with the calcium in apatite and forms a slag of liquid calcium silicate. If the apatite contains fluorine, SiF gas is formed that is passed into water containing soda. The compound formed, sodium hexafluorosilicate Na SiF, is used for fluoridating drinking water. In the process described, white phosphorus is the product. In the world about 1 million tonnes per year are produced. White phosphorus is used to some extent for smoke bombs and incendiary bombs, but most of it is used for the manufacture of phosphoric acid and other chemicals and for preparing red phosphorus for the match industry. [Pg.997]

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