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Chromic hydroxide

The precipitated chromic hydroxide and sulfur are discarded. This process is used to purify carbon dioxide from fermentation ia the Reich process and as a final cleanup after the alkaU carbonate or ethanolamine recovery processes (22,23). [Pg.23]

Chrom-hydrat, -hydroxyd, n. chromic hydroxide, chromium(lll) hydroxide, -hydroxydul, n. chromous hydroxide, chromium(II) hydroxide. [Pg.92]

Chromi-nydroxyd, n. chromic hydroxide, chro-mium(III) hydroxide, -oxyd, n. chromic oxide, chromium(III) oxide, -rhodanwasser-stoffsMure, /. chromithiocyanic acid, thio-cyanatochromic(III) acid, -salz, n. chromic salt, chromium(III) salt, -suifat, n. chromic sulfate, chromium(III) sulfate, -suifocyan-saure, /. chromithiocyanic acid, thiocyana-tochromic(III) acid, -verbindung,/. chromic compound, chromium(III) compound. [Pg.92]

Chromic hydroxide, Cr(OH)3, is a compound with low solubility in water. It is usually hydrated and does not have the definite composition represented by the formula. It is quite soluble either in strong acid or strong base. [Pg.410]

Chromate is a strong oxidizing agent in acidic media and produces Cr(III) ions in the hydrate form, Equation 6. In neutral and basic media, chromate is a rather weak oxidizer, as evidenced by its negative oxidation potential (Equation 7), and the product is chromic hydroxide (8). [Pg.146]

Some chromium compounds (e.g., chromium chloride, chromic hydroxide, chromic phosphate) are used as catalysts for organic chemical reactions. [Pg.97]

Formula Cr(0H)3 3H20 MW 157.06 occurs only as hydrates Synonyms chromic hydroxide chromic oxide hydrous chromic oxide gel chromium hydrate chromic hydrate. [Pg.223]

Aquo-pentammino-chromic Hydroxide, [Cr(NH3)5H20](OH)3, is known only in solution, and is formed when dry chloro-pentammino-chromie chloride, [Cr(NH3)5Cl]Cl2, is rubbed, in absence of light, with moist silver oxide and water on filtering a deep red solution, which is strongly alkaline in reaction, is left, which contains the base, Cr[(NH3)5H20](OH)3. The solution is unstable and decomposes on... [Pg.85]

The triaquo-salts tend to decompose in solution on standing, with precipitation, finally, of chromic hydroxide.4... [Pg.90]

Bromo-pentammino-chromic Bromide, [Cr(NH3)3Br]Br2, is prepared by transforming ehloro-pentammino-chloride into aquo-pentammino-chromic hydroxide, [Cr(NH3)5H20](0H)3, by means of silver oxide, treating the mixture with dilute hydrobromic acid, filtering off silver bromide formed, and allowing the filtrate to evaporate to small bulk. It is then heated with an equal volume of concentrated acid, the precipitate formed, collected, washed with dilute acid and alcohol.1 It crystallises in violet-red octahedra, and in solution the salt decomposes like the chloro-pentammino-salt warming with water and a little aeicl transforms the salt into aquo-pentammino-broniide silver oxide and water convert it into aquo-pentammino-hydroxide. [Pg.96]

The sulphate, [Cr(NH3)4(H20)Br]S04, is also obtained from the bromide by decomposing it, in aqueous solution, with sodium sulphate and sulphuric acid. It is a red crystalline powder, easily soluble in water, and on heating the solution it decomposes into ammonia and chromic hydroxide. [Pg.98]

Chromiumbexammine Picramate or Rexam— minochromic Picramate, lCr(NH,) ](C H4QNj)aJ brn, amor ppt. Was prepd from hexammine-chromic hydroxide and picramic acid... [Pg.242]

In the presence of alkali hydroxide, arsenic pentoxide forms with chromic hydroxide complex arsenates, analogous to the ferriphos-phates, which have been formulated3 NaH,[Cr(As04),].H 0 and KH5[Cr(As04)3].7 and 12H20. [Pg.200]

It is noted that the formation of such hydrogen-bonded cation pairs corresponds well to results obtained in a study of the behavior of freshly precipitated chromic hydroxide (199). [Pg.103]

Aq. ammonia dissolves many of the heavy metal hydroxides—e.g. zinc, cadmium, cobalt, nickel, copper, and silver hydroxides chromic hydroxide dissolves in this... [Pg.222]

Chromate is a strong anodic inhibitor that promotes the formation of y-FezOj film containing some C1O3, together with ferric and chromic hydroxides. [Pg.143]

See other pages where Chromic hydroxide is mentioned: [Pg.757]    [Pg.760]    [Pg.1028]    [Pg.757]    [Pg.760]    [Pg.80]    [Pg.124]    [Pg.95]    [Pg.97]    [Pg.119]    [Pg.119]    [Pg.192]    [Pg.168]    [Pg.169]    [Pg.757]    [Pg.760]    [Pg.82]    [Pg.319]    [Pg.354]    [Pg.383]    [Pg.451]    [Pg.499]    [Pg.695]    [Pg.908]    [Pg.1058]    [Pg.78]    [Pg.78]    [Pg.100]   
See also in sourсe #XX -- [ Pg.223 ]

See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.4 , Pg.5 , Pg.6 , Pg.7 , Pg.8 , Pg.9 , Pg.10 , Pg.11 ]



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