Cobalt ammonium

Cobaltous ammonium sulfate (6H2O) [13596-46-8] M 395.5, d 1.90. Crystd from boiling water (2mL/g) by cooling. Washed with ethanol. 

Vanadium Co-precipitation with ferric hydroxide, cobalt ammonium pyrrolidine dithio carbarn ate or ammonium pyrrolidine dithiocarbamate Miscellaneous [920]... 

The amount of ammonia volatilized was determined from the amount of standard sulfuric acid consumed in the traps. Ethylenediamine was determined by the salicylaldehyde method (14). The sample for cobalt(II) determination was made slightly acidic with hydrochloric acid immediately upon removal of the sample from the reaction flask, in order to prevent further oxidation of the cobalt (18). The carbon was removed by filtration, and the cobalt (II) concentration was determined spectrophotometrically as the cobalt-ammonium thiocyanate complex, (NH4)2Co(NCS)4 (28). 

Electrolytic reduction of the double cobalt ammonium sulphate6 in the presence of ammonium hydroxide, or of the double oxalate in the presence of excess of ammonium oxalate, yields a very pure metal. 

Cobalt ammonium sulphate Magnesium sulphate Ammonium sulphate. ... 

A solution of 200 grams of cobalt ammonium sulphate, (NH4)2S04.CoS04.6H20, equivalent to 145 grams of the anhydrous salt, in one litre of water. The density of the solution is 1-053 at 15° C. 

The copper-free solution containing nickel, cobalt, ammonium sulfate, ammonium sulfamate, and some unsaturated sulfur compounds imdergoes an oxidation-hydrolysis step in an autoclave at 460°F under an air pressure of 600 psig. The unsaturated sulfur compounds are oxidized and sulfamate is hydrolyzed to sulfate. This step prevents the contamination of the fertilizer-grade ammonium sulfate with ammonium sulfamate and of the nickel with sulfur. The oxydrolyzed solution containing about 45 gm/liter Ni, 1 gm/liter Co, and 350 gm/liter (NH4)4S04 is ready for batchwise nickel recovery. 

Gmelins Handbuch der anorganischen Chemie/ Eighth Edition, System No. 58, Part B, 1930, on The Amines of Cobalt, is the only one of the separate volumes on metal amines in Gmelins series that includes Werner s work. This book refers to the literature from 1799, the year of the discovery of the first cobalt-ammonium salt, to the year 1929. In this volume of 376 pages, more than 2400 cobalt compounds are listed, 700 of which refer to Werner and his associates. Some additional compounds and special investigations are available but, as mentioned earlier, are only... 

Cobalt ammonium Copper sulphate Sulphuric acid... 

Cobalt ammonium sulphate Copper sulphate Sulphuric acid (sp gr 1 -835)... 

The combination of spermine and uranyl acetate, on the other hand, yields well-defined toroids of electron microscopic dimensions. Usually one finds only a few percent of such compacted DNA molecules within a large population of linear or circular DNA strands, but under carefully controlled conditions quantitative compaction to toroids of quite uniform size has been achieved (Fig. 8.6.21) (Bottcher, 1998). Chromium and cobalt ammonium complexes have similar effects, but compaction yields are usually low. The least poisonous system to compact DNA toroids consists of a hydrophobic tripeptide, namely a (yai derivative with a terminal naphthalene sulfonate headgroup (Vengerov et al., 1985). 

Ammonium cobaltous phosphate. See Cobalt ammonium phosphate (ous)... 

Uses Pigment for specialty paints and plastics colorant for food-grade polymers Trade Name Synonyms Heucodur Blue 552 [Heucotech Ltd http //www.heubachcoior.de] Cobalt ammonium phosphate (ous)... 

Synonyms Ammonium cobaltous phosphate Cobaltous ammonium phosphate Cobalt violet Empirical C0H4NO4P... 

Cobaltous ammonium sulfate Formula C0SO4 (NH4)2S04 6H2O Properties Ruby-red cryst. sol. in water insol. in alcohol m.w. 287.14 dens. 1.902 Uses Ceramics cobalt plating catalyst Manuf./Distrib. Aithaca... 

Chromium phosphate Chromium sulfate (ic) Cobalt acetate (ous) Cobalt ammonium sulfate (ous) Cobalt bromide (ous)... 

Cobalt ammonium phosphate (ous) Cobalt arsenate (ous) Cobalt oxide (ous) Cobalt phosphate (ous) Cobalt potassium nitrite Ferrous oxide Nickel oxide (ous) Selenium Tellurium... 

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