Iron chloride, anhydrous

Anhydrous hydrogen fluoride (as distinct from an aqueous solution of hydrofluoric acid) does not attack silica or glass. It reacts with metals to give fluorides, for example with heated iron the anhydrous iron(II) fluoride is formed the same product is obtained by displacement of chlorine from iron(II) chloride ... 

Chemical Designations - Synonyms Ferric Chloride (anhydrous). Ferric Chloride (hexahydrate). Iron (in) chloride. Iron perchloride. Iron trichloride Chemical Formula FeClj or FeCl3 6H20. Observable Characteristics - Physical State (as shipped) Solid Color Anhydrous greenish black, Hidrate brown Odor None. 

Ammonium thiocyanate Iron(III) chloride anhydrous Acetone... 

Polyironphenylsiloxane is obtained in three stages. The first two stages are similar to those of polyalumophenylsiloxane. The third stage is the exchange destruction of ethanol-toluene solution of anhydrous ferric iron chloride and sodium dihydroxyphenylsilanolate ... 

The technological diagram of the production of polyironphenylsiloxane varnish is similar to the diagram given in Fig. 79. The difference in the production of polyironphenylsiloxane is that during the exchange destruction sodium dihydroxyphenylsilanolate, which is synthesised in apparatus 8, receives from batch box 13 at 30-40 °C for 1-2 hours a pre-prepared ethanol-toluene solution of anhydrous ferric iron chloride. After the salt has been introduced, the reactive mixture is agitated at 30-40 °C for 2 hours and settled for 1-2 hours. The obtained solution of polyironphenylsiloxane is sampled to determine free alkali content, which is neutralised with 20% ethanol-toluene solution of anhydrous ferric iron. 

Ferrous fluoride, FeF2, may be obtained as colourless monoclinic crystals of density 4 09 by heating reduced iron or anhydrous ferrous chloride to redness in a current of dry hydrogen fluoride.2 In the amorphous condition it results on passing hydrogen fluoride over ferrous chloride in the cold. 

Substitution is the most common kind of reaction of an aromatic ring. Halogenation, with chlorine or bromine, occurs readily in the presence of iron or anhydrous iron(III) chloride (a Lewis acid) catalyst. 

Zinc chloride, anhydrous Magnesium chloride, anhydrous Iron(II) sulfate... 

FeCl3 (iron(III) chloride, ferric chloride) Anhydrous iron(III) chloride is a black-brown solid m.p., 306°C r.d., 2.9. It forms a brownish yellow solution. It also exists as FeCl3.6H20, a brown-yellow deliquescent crystalline substance. 

A 5.012-g sample of an iron chloride hydrate was dried in an oven. The mass of the anhydrous compound was 3.195 g. The compound was dissolved in water and reacted with an excess of AgNOs. The precipitae of AgCl formed weighed 7.225 g. What is the formula of the original compound ... 

Iron chloride exhibits Lewis acidity to readily cleave C-O bonds of ethers, acetals, and ketals (silyl ethers, later). Anhydrous FeC in dichloromethane can cleave benzyl and p-phenylbenzyl ethers of sugar skeletons, for example (166), in a few minutes at room temperature. Methyl ethers and several acyl groups are not affected under the reaction condition (Scheme 16.46) [53]. 

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