Indium nitrate

Other Salts. Indium nitrate trihydrate [13770-61 -1], In(N02)3 3H20, is a soluble salt prepared by dissolution of the metal or oxide in nitric acid. Indium phosphate [14693-82-4], InPO, is precipitated by adding phosphate ions to a solution of an indium salt. It is soluble in water. 

Synonyms Indium sesquioxide indium trichloride indium nitrate indium antimonide indium arsenide indium phosphide... 

Indium dissolves in mineral acids. Concentration or evaporation of the solution produces corresponding salts. With sulfuric acid, it forms indium trisulfate, In2(S04)s and indium hydrogen sulfate, In(HS04)2. The latter salt is obtained upon concentration of trisulfate solution. With nitric acid, the salt is indium nitrate trihydrate, In(N03)s 3H2O [13770-61-1] which on dehydration yields monohydrate, In(N03)3 H20. 

Indium nitrate can be prepared from InCl3 and N205 158,159 the dissolution of indium metal in cone, nitric acid yields In(N03) xH20 (x = 3, 4, 5),7 which has been used as the source of cationic and anionic complexes.64 Salts of [In(N03)4] have been reported,64160 and Raman studies161,162 have demonstrated the presence of In/NOj complexes in solution the stability constant results have been reviewed.9... 

The diaqua(2,6-diacetaylpyridinedisemicarbazone)indmm(III) cation (72) represents the first example featuring a pentagonal bipyramidal indium site." It was isolated as [In(H2DAPSC)(H20)2](N03)2(0H) by reacting hydrated indium nitrate and 2,6-diacetylpyridine bis(semicarbazone) (H2DAPSC) in a water-ethanol solution. 

A. nitrate, In(N08)a 4 H20, is formed when the metal is dissolved in nitric acid. It crystallizes from nitric acid readily, but not easily from a neutral solution. It forms a double ammonium indium nitrate. If the solution of the simple nitrate is heated, a difficultly soluble basic salt is formed. 

R.M. Mofolo, D.A. Katskov, P. Tittarelli, and M. Grotti. Vaporization of indium nitrate in the graphite tube atomizer in the presence of chemical modifiers. Spectrochimica Acta Part B 56 375-391, 2001. 

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