Tin II fluoride

The addition of fluoride ions to domestic water supplies (in the form of NaF) is now widespread and has resulted in a dramatic decrease in dental cavities. Fluoridated toothpastes, containing either tin(II) fluoride or sodium monofluorophos-phate (MFP, Na2FP03), are also recommended to strengthen tooth enamel. [Pg.717]

C04-0008.Tooth enamel consists, in part, of CajfPOq)] (OH). Tin(II) fluoride (toothpaste labels call it... [Pg.211]

MRH values calculated for 16 combinations with oxidisable materials are given. Tin(II) fluoride... [Pg.1764]

Silver difluoride, 0014 Silver fluoride, 0013 Sodium chloride, 4036 Sodium iodide, 4623 Tantalum pentachloride, 4185 Tellurium tetrabromide, 0296 Thallium, 4922 Tin(II) chloride, 4116 Tin(IV) chloride, 4174 Tin(II) fluoride, 4331 Titanium(II) chloride, 4117 Titanium dibromide, 0284 Titanium diiodide, 4630 Titanium tetrachloride, 4176 Titanium tetraiodide, 4638 Titanium trichloride, 4158... [Pg.237]

Powdered niobium metal, 20.0 g. (—200 mesh), and tin(II) fluoride, 52.0 g. (40 mesh),t are mixed in a molybdenum crucible in an Inconel- or nickel-pipe reactor approximately 3 in. in diameter and 10 in. long and heated to 400-500°C. in a stream of dry nitrogen. The niobium(V) fluoride volatilizes from the reaction mixture and condenses on the water-cooled lid of the reactor, which leaves metallic tin in the crucible. The yield of niobium(V) fluoride is 21.1 g., or 95% of theoretical. A very small amount of blue niobium oxyfluoride (composition of variable oxygen and fluorine content) often forms as an impurity because of the presence of minute amounts of oxygen. Anal. Calcd. for NbFs Nb, 49.44 F, 50.56. Found Nb, 49.43 F, 50.2. [Pg.106]

Tin(II) fluoride or stannous fluoride. Its molecular formula is SnF2-... [Pg.8]

HOMOALLYLIC ALCOHOLS Cerium amalgam. Chromium(II) chloride. Fluorodimethoxyborane. Hypochlorous acid. Lithium bronze. Manganesc(II) chloride-Lithium aluminum hydride. Methylenetriphenylphosphorane. Organotitanium reagents. Tetrakis(triphenylphosphine)palladium. Tin. Tin(II) fluoride. [Pg.313]

See Magnesium nitrate Tin(II) fluoride See other METAL HALIDES, REDUCANTS... [Pg.1591]

Potassium phosphinate, 4453 Sodium disulfite, 4802 Sodium dithionite, 4801 Sodium hydride, 4438 Sodium hypoborate, 0164 Sodium phosphinate, 4467 Sodium thiosulfate, 4798 Sulfur dioxide, 4831 Tetraphosphorus hexaoxide, 4861 Tin(II) chloride, 4064 Tin(II) fluoride, 4325 Titanium trichloride, 4152 Titanium(II) chloride, 4111 Tungsten dichloride, 4113 Vanadium dichloride, 4112 Vanadium trichloride, 4153 Zinc, 4921... [Pg.2568]

Reaction of aldehydes with carbon tetrabromide and tin(II) fluoride gives adducts, formed by addition of the elements of bromoform across the carbonyl group, which may be hydrolyzed to acids. In this way, 2,3-0-isopropylidene-D-glyceraldehyde (19) was converted into a mixture of D-erythro (20) and D-//zreo-tetronolactones (21).40... [Pg.204]

Example Tin (II) fluoride, or stannous fluoride, is used in some dental treatment products. It is made by the reaction of tin with hydrogen fluoride according to the unbalanced equation ... [Pg.214]

The addition of tin(II) chloride or tin(II) fluoride, as low-redox-polential reducUtnts. in the dediiizoniation slop of the fluorination of arylamines with polar groups, using hydrogen fluoride in the presence of a nucleophilic fluoride source (e.g., tetrabutylanimonium diliydrogen trifluoride), not only improves the yield of the fluoroaromatic, but al.so allows the fiuorodediazoni-ation process to be performed under milder reaction conditions. ... [Pg.244]

Several bivalent tin compounds have appreciable water solubilities, e.g. the solubility of tin(II) chloride is 83.9 g in 100 mL at 0°C, that of tin(II) fluoride is 4.1g in 100 mL at 25 °C, and of tin(II) sulfate is 35.2 g in 100 mL at 10 °C. Aqueous solutions are susceptible to hydrolysis to hydrous tm(ll) oxide and oxidation to Sfr species the stability of aqueous solutions depends upon the anions present and the pH. The presence of anions that are able to form strong complexes with Sn , e.g. F or OAc , enhances resistance to hydrolysis and oxidation. Ease of hydrolysis increases with pH at very high pH, disproportionation of Sn to Sn° and Sn results. [Pg.4863]

The tin(II) halides are much less volatile than the corresponding tin(IV) compounds in fact, they are probably ionic, containing Sn2+ and X- ions. Tin(II) chloride in aqueous solution is commonly used as a reducing agent. Tin(II) fluoride (stannous fluoride) was for many years added to toothpaste to help prevent tooth decay. It has since been replaced by sodium fluoride. [Pg.882]

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