Cobalt chloride dihydrate

Chemical Designations - Synonyms Cobalt (II) Chloride Cobaltous Chloride Cobaltous Chloride Dihydrate Cobaltous Chloride Hexahydrate Chemical Formula CoClj,... 

Synonym Gamma-Chloropropylene Oxide 3-Chloro-1,2-Propylene Oxide Chlorosulfonic Acid Chlorothene Chiorotoluene, Alpha Alpha-Chlorotoluene Omega-Chlorotoluene Chlorotrifluoroethylene Chlorotrimethylsilane Chlorsulfonic Acid Clilorylen Clip Chromic Acid Chromic Anhydride Chromic Oxide Chromium (VI) Dioxychloride Chromium Oxychloride Chromium Trioxide Chromyl Chloride Cianurina Citric Acid Citric Acid, Diammonium Salt Clarified Oil Clorox Cc Ral Coal Tar Oil Cobalt Acetate Cobalt Acetate Tetrahydrate Cobalt (II) Acetate Cobalt Chloride Cobalt (II) Chloride Cobaltous Acetate Cobaltous Chloride Cobaltous Chloride Dihydrate Cobaltous Chloride Hexahydrate Cobaltous Nitrate Cobaltous Nitrate Hexahydrate Cobaltous Sulfate Heptahydrate Cobalt Nitrate Cobalt (II) Nitrate Cobalt Sulfate Compound Name Epichlorohydrin Epichlorohydrin Chlorosulfonic Acid Trichloroethane Benzyl Chloride Benzyl Chloride Benzyl Chloride Trifluorochloroethylene Trimethylchlorosilane Chlorosulfonic Acid Trichloroethylene Cumene Hydroperoxide Chromic Anhydride Chromic Anhydride Chromic Anhydride Chromyl Chloride Chromyl Chloride Chromic Anhydride Chromyl Chloride Mercuric Cyanide Citric Acid Ammonium Citrate Oil Clarified Sodium Hypochlorite Coumaphos Oil Coal Tar Cobalt Acetate Cobalt Acetate Cobalt Acetate Cobalt Chloride Cobalt Chloride Cobalt Acetate Cobalt Chloride Cobalt Chloride Cobalt Chloride Cobalt Nitrate Cobalt Nitrate Cobalt Sulfate Cobalt Nitrate Cobalt Nitrate Cobalt Sulfate... 

Three color changes were observed blue, violet and red. From the information provided, the blue form appeared to be the anhydride, CoCl2. When exposed briefly to air containing water vapor, the anhydrous cobalt chloride turned violet, CoCl2 2H20. Upon further standing in air, the dihydrate was converted to the fully hydrated form, CoCl2 6 H20. The color of the anhydride-hydrate depended upon the relative humidity of the air to which it was exposed. 

Potassium phosphate monobasic Magnesium sulfate heptahydrate Calcium chloride dihydrate Zinc sulfate heptahydrate Ferric sulfate heptahydrate Copper sulfate pentahydrate Cobalt(II) chloride hexahydrate Perchloric acid Potassium hydrocarbonate... 

Cobalt Dimolybdate, 2CoMo20,.llH20.—The liquor remaining after removal of cobalt molybdate from mixed solutions of cobalt chloride and sodium dimolybdate (see above), when allowed to evaporate in the cold, deposits brown needle-shaped crystals of the above composition. When heated at 100° C. water is lost and the dihydrate CoMo20,.2H20 remains. ... 

RuClsHisNs, Ruthenium(III), pentaammine-chloro-, dichloride, 24 255 RuCI]N4C2oH,g 2H2O, Ruthenium(III), bis-(2,2 -bipyridine-lV, IV )dichloro-, cis-, chloride, dihydrate, 24 293 RuCojHOi2C,2, Cobalt, dodecacarbonylhy-dridorutheniumtri-, 25 164 RuFgNsOgS2C27H , Ruthenium(II), (2,2 -bi-pyrichne-N,N )(2,2 6, 2"-terpyridine-N, N, N )(trifluoromethanesulfonato-O)-, trifluoromethanesulfonate,... 

The formula of the hydrate is CoCl2-2H20. its name is cobalt(ll) chloride dihydrate. 

Cobalt(ll) chloride dihydrate C0CI3-2O3O 16644-92-6 166.870 viol-blue cry 2.477 66.2 ... 

Some salts could not be dehydrated in THF. Iron(III) chloride for example, polymerizes THF and must be prepared using neat trimethylchlorosilane. Cobalt(II) chloride dihydrate gave a similar result requiring neat trimethylchlorosilane. In both cases, nearly quantitative yields of the anhydrous salt were obtained. Hydrated zinc chloride, which we prepared by adding 10 wt % water to the anhydrous chloride because well-defined hydrates are not commercially available, was very efficiently dehydrated in neat trimethylchlorosilane to give a 96% yield of zinc chloride. In contrast, the THF/trimethylchlorosilane mixture afforded a comparatively modest 71% yield of the tetrahydrofuranate. Chromium(III) chloride hexahydrate, on the other hand, could not be completely dehydrated in neat trimethylchlorosilane and required THF for an efficient reaction giving 89% yield of chromium(III) chloride tris(tetrahydrofuran). Our results are summarized in Table I. 

SnO containing films the bulk materials and cast-side surfaces were characterized as dielectric in nature with loss and conduction. The air-side charging characteristics, on the other hand, were markedly different from the volume mode charging characteristics. No short term polarization occurred in the samples implying little or no direct contribution from the polymer matrix to the air-side electrical properties. Also, the air-side electrical resistivity of BTDA-ODA polyimide films at room temperature was reduced substantially for both cobalt chloride modified and tin chloride dihydrate modified samples (i.e. six orders of magnitude and eleven orders of magnitude, respectively). 

Cobalt chloride (ous) Diethyl pyrocarbonate Lithium citrate BHT substitute, polyolefins Octadecyl 3,5-di-t-butyM-hydroxyhydrocinnamate Bi detection Dimethyl glyoxime biaryl formation Trifluoromethane sulfonic acid bilirubin testing, urine 5-Sulfosalicylic acid 5-Sulfosalicylic acid dihydrate binder... 

Cobalt chloride (ous) Manganese oxide (ous) Manganese sulfate (ous) . Sodium molybdate anhydrous Sodium molybdate dihydrate Vermiculite... 

An interesting method for producing copolyesters has been proposed. Soft drink bottles were washed, cut into flakes, and a catalyst was added, namely cobalt(II) acetate tetrahydrate. In this way, glycolysis of PET occurred and a monomeric compound, bis(2-hydroxyethyl terephthalate) (BHET), was obtained in good yield. Copolyesters were synthesized by the melt reaction of BHET with L-lactic acid (LA) oligomers in the presence of a catalyst made of tin(II) chloride dihydrate and p-toluenesulfonic acid monohydrate [86]. SEC fractions of the BHET-LA copolyester were collected and analyzed by MALDI. MS peaks were assigned to linear BHET-LA chains and to cycles. The authors noted that cycles elute at later times with respect to linear chains. The latter phenomenon is well understood [4]. 

Similar attempted cleavage reactions of the lead-iron derivative with cadmium(II) iodide, copper(II) chloride dihydrate, cobalt(II) chloride hexahydrate, bismuth(III) bromide, and K[Pbl3] failed to give any iron carbonyl derivatives of these metals 198). The black air-sensitive derivative of divalent lead [PbFe(CO)4] has been obtained on treatment of [HFe(CO)4] with basic lead(II) acetate 199). 

C8H26CI3C0N6 2 H2O, (2,2 ,2"-Triaminotriethylamine)-(ethylenediam-ine)cobalt (III ) chloride dihydrate, 45B, 1023 CbH26CuN806, Bis(diethylenetriamine)copper(II) nitrate, 34B, 486 CbH27CIC0I2N5O, a-Chloro(ethylenediamine)(dipropylenetriamine)cobalt (III) iodide monohydrate, 37B, 539 C8H27CI3C0N5O12S2 H2O, [(S -Ethyl-S2-(2-aminoethyl)disulfide)-N,S ]bis(ethylenediamine)cobalt(III), 46B, 952 CbH28Br2NgOZn, Bis(diethylenetriamine)zinc(II) dibromide monohydrate, 40B, 809... 

Cl 1H27Cl2CoN80(j, trans-(TheophyHinatochlorobis(ethylenediamine)co-balt(lll)) chloride dihydrate, 41B, 948 CliH28CoCrNi2O3, Tris(ethylenediamine)cobalt pentacyanonitrosylch-romate dihydrate, 35B, 602... 

Cl sH3i,C02Ni 2O2, facial-Tris-(R-propylenediamine)cobalt(III) hexacy-anocobaltate(lII) dihydrate, 40B, 813 Cl5H46CI3C0N6O2, (-)-Tris-(R,R-2,4-diaminopentane)cobalt(III) chloride dihydrate, 39B, 658... 

C20H1 i Cl2CuN6S2 2 H2O, Chloro-di(2-(4 -thiazolyl)benzimidazole)-copper(II) chloride dihydrate, 45B, 1185 C20H15B2C0F5N7O3P, (Fluoro-(6,6, 6 -phosphinidynetris-(pyridine-2-carbaldehyde oximato)(3-))-borato(1-))cobalt(1+) tetrafluoroborate - acetonitrile, 39B, 744... 

CbH2 2C1CoNi,05, trans-Bis(ethylenediaminomonoacetato)cobalt (III) chloride dihydrate, 40B, 964... 

Dissolve the sample as for zirconium. Add 2 ml hydrogen peroxide (30 %) and 2 ml hydrogen fluoride (50 %). Add the solution onto the column and elute as for zirconium, collecting the fraction of the eluate between 80 and 280 ml. Precipitate yttrium fluoride at 70-80 C and stir for one hour. Filter off on a membrane filter. Dissolve 50 mg vanadium(III) oxide, 50 mg manganese(II) chloride dihydrate and 50 mg cobalt(II) chloride hexahydrate in the filtrate and add dropwise 6 ml 0.5 M barium nitrate while stirring. Filter off the precipitate, wash with ethanol and dry at 80°C. 

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