Reaction #1509635

Reaction equation

ammonium hydrogen carbonate

SnCl4

tin tetrachloride

SnCl4

indium chloride

tin

→

indium tin hydroxide

Conditions

Workup

1. 1
   Otherwas prepared
2. 2
   Otherto prepare a mixed aqueous solution
3. 3
   workup.ADDITIONwas added to the mixed aqueous solution
4. 4
   Otherto obtain
5. 5
   Othera mixture (reaction liquid)
6. 6
   OtherThe pH of the reaction liquid
7. 7
   Otherwas adjusted to 30° C.
8. 8
   Otherto react for 30 minutes
9. 9
   Washwashing
10. 10
    Filtrationmore, the precipitate (In/Sn coprecipitated hydroxide) was filtered

Procedure

An aqueous SnCl4 solution having a concentration of 55% was prepared using tin tetrachloride as a tin compound. 14.4 g of the aqueous SnCl4 solution and 90 mL (a content of In was 35 g) of indium chloride (InCl3) were mixed to prepare a mixed aqueous solution. 0.6 L of an aqueous alkali solution containing 190 g of an aqueous ammonium hydrogen carbonate (NH4HCO3) was added to the mixed aqueous solution to obtain a mixture (reaction liquid). The pH of the reaction liquid was adjusted to 8, and a temperature of the liquid was adjusted to 30° C., and the mixture was caused to react for 30 minutes. A generated precipitate was repetitively subjected to inclination washing by using ion exchange water. When resistivity of the supernatant liquid became 50,000 Ω·cm or more, the precipitate (In/Sn coprecipitated hydroxide) was filtered to obtain a coprecipitated indium tin hydroxide. This coprecipitated indium tin hydroxide was white.

Source