Cov txheej txheem rau kev npajCov dej tsis muaj dej InCl3Feem ntau suav nrog chlorination ncaj qha ntawm hlau indium, oxide decomposition thiab chlorination, ncaj qha cua sov thiab lub cev qhuav dej ntawm hydrate, organic solvent method, thiab stepwise cua sov chlorination. Muab cov block indium tso rau hauv lub beaker, ntxiv 36 feem pua hydrochloric acid, thiab cua sov. Indium reacts sai heev nyob rau hauv concentrated hydrochloric acid, thiab cov tshuaj tiv thaiv mis yog raws li nram no:
2In plus 6HCl plus 8H 2 O= 2InCl3 · 4H 2 O plus 3H 2
The InCl3 solution was obtained by the reaction, and the InCl3 · 4H 2 O crystals were obtained by heating, evaporating, and dehydrating at the lowest level in a microwave oven. Put 29.3 g (about 0.1 mol) InCl3 · 4H 2 O and 100 mL cyclohexane in a 250 mL two-necked flask, install a moisture separator, a condenser tube, and a thermometer, and then heat it with an electric heating mantle. With the increase of heating temperature, reflux began, and the reflux liquid was white and turbid, and later clarified, and the solution in the water separator began to layer. With the increase of water output, the solution temperature gradually increased. When the amount of water that came out no longer increased, the heating was stopped, and a large amount of white powdery solid was precipitated at the bottom of the flask. After cooling to room temperature, it was filtered, and after vacuum drying for 2 h, the amount of white powdery solid was 20 g, and the volume of water in the water separator was about 6.8 mL. The entire dehydration process takes about 1.5 h.
Thiab cov txheej txheem no yuav tsum muaj kev ua haujlwm tshaj lij, yog tias koj xav tau cov dej tsis muaj dej InCl3, thov koj xav tiv tauj peb, peb tuaj yeem muab koj thawj - cov khoom hauv chav kawm. Yog li thov koj xav tiv tauj peb.