Iron -, monohydrate

C1CoN407S2C4H,8 - H20, Cobalt(III), aqua-chlorobis( 1,2-ethanediamine)-, dithionate, irons-, monohydrate, 21 125 ClF6N4PZnC21H28, Zinc(ll), chloro(2,9-di-... 

ClCoNgOTSjCgH, HjO, Cobalt(III), aqua-chlorobi (l,2-ethanediamine)-, dithionate, irons-, monohydrate, 21 125 CIFJ94PZnCg4Hg 2inc(n), chloro(2,9-di-methyl-3,IO-diphenyl-l, 4,8,1 l-tetraazacy-clotetradeca-l,3,8,IO-tetraene)-, hexa-fluorophosphate( I —), 22 111 ClF.TlCigHg, Thalliumdll), chlorobis(2,3,4,6-tetrafluorophenyl-), chlorobis(2,3,5,6-tetrafluorophenyl)-, 21 73 aF TIC,j, Thalliumdll), chlo-... 

C. Further warming to 65°C forms white iron sulfate monohydrate [17375-41 -6], FeSO H2O, which is stable to 300°C. Strong beating results in decomposition with loss of sulfur dioxide. Solutions of iron(II) sulfate reduce nitrate and nitrite to nitric oxide, whereupon the highly colored [Fe(H20) (N0)] ion is formed. This reaction is the basis of the brown ring text for the quaUtative deterrnination of nitrate or nitrite. 

In analogy to the situation for bipyridine, the blue tris(l,10-phenanthroline)iron(3+) ion [1347949-7], [Fe(phen)2], must be obtained by oxidation of the corresponding iron(II) ion. [Fe(phen)2] has an absorption maximum at 590 nm, an absorptivity of 600 (Mem), and a formation constant of 10 . In solutions of pH > 4, this species is reduced to the iron(II) complex. The reduction is instantaneous in alkaline solution. At pH < 2, protons compete with iron(III) for the phenanthroline nitrogens and coordination is incomplete. [Fe(phen)2] is used most often in solution as an oxidant, but the trichloride [40273-22-1] and the triperchlorate monohydrate [20774-81-6] salts have been prepared. 

The largest volume of synthetic red iron oxide is produced by the two-step calcination of iron(II) sulfate. In the first step, the iron(II) sulfate heptahydrate is dehydrated to a monohydrate ... 

Dipping solution Dissolve 3 g 1-naphthol in 150 ml methanol and add 1350 ml water. Dissolve 0.5 g potassium disulfite (potassium metabisulfite) in this solution, add 20 ml glacial acetic acid and dissolve 0.5 g iron(II) sulfate THiO followed by 2.2 g N -ethyl-N -(2-methanesulfonamidoethyl)-2-methyl-l,4-phenylenediamine (sesquisulfate, monohydrate) (color developer 3, Merck). Care should be taken at each step that the solution has clarified before adding further components. 

Mono- and polyl dric phenols and enols frequently form characteristically colored complexes with Fe + ions [4, 28, 29]. Here monohydric phenols usually produce reddish-violet colors, while pyrocatechol derivatives yield green chelates [4]. Detection of acetone using Legal s test is based on the formation of an iron complex [4]. The same applies to the thioglycolic acid reaction of the German Pharmacopoeia (DAB 9) [4, 30]. 

Iron Sponge Also called Dry box. An obsolete process for removing hydrogen sulfide from gas streams by reaction with iron oxide monohydrate. The ferric sulfide that is formed is periodically re-oxidized to regenerate ferric oxide and elemental sulfur. When this process becomes inefficient because of pore-blockage, the sulfur is either oxidized to sulfur dioxide for conversion to sulfuric acid, or is extracted with carbon disulfide. 

Practically all world production of newly smelted aluminum was made from bauxite. The term bauxite is used for naturally occurring mixtures of aluminum monohydrate (boehmite or diaspore) and trihydrate gibbsite Al(OH)3, including impurities which are typically clay minerals, free silica, iron hydroxides and titania. The luminescence ofboehmite and diaspore and LIBS (Fig. 8.10) maybe used for the detection, sorting and commercial value evaluation of A1 minerals. 

C2iH25ClFeN302, Iron(III), chlorobis(3-salicyU-denoaminopropyl)methylamine-, 34 142 C21H27N3O2, Bis(3-salicylideneaminopropyl)-methylamine, salmetenH2, 34 141 C2iH35lrN4-H20, Iridium(III), tricyano(penta-methylcyclopentadienyl)-, tetraethylammo-nium, monohydrate, 34 168 C2iH35N4Rh H20, Rhodium(III), tricyano(pen-tamethylcyclopentadienyl)-, tetraethyl-ammonium, monohydrate, 34 167... 

Calcium Chromate, CaCr04, CaCr04.2H20, mw 192.12 yel, monocl crysts mp - loses 2HzO at 200° sol in w(22.2% at 0° 18.2% at 43°) sol in acids si sol in alcohol. Can be prepd from chrome-iron ores as described under CHROMATES. Its toxicity is discussed in Ref 7. It exists also as monohydrate and as... 

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