Aluminum hydroxide buatsaih dan tam tak a awm a, chungte chu Bayer Method, Soda Lime Sintering Method, Ammonium Bicarbonate Method, etc. te hi a ni a, alumina reaction pawh hi preparation method tha tak a ni bawk. Specific reaction process chu hetiang hi a ni:
Aluminum oxide hi amphoteric oxide a nih avangin tuiah a hmin harsa a, aluminum hydroxide hi tuiah a hmin harsa a ni. chu acid chak leh base chak takah a inthiar theih a, mahse amnimonia (weak base) emaw, carbon acid-ah chuan a awm lo{{1} Soluble as soluble-ah erawh a inthiar thei lo. A hnuaia mi ang hian:
1. sulphuric acid-ah aluminum oxide chu aluminum sulfate solution hmuh theih nan dissolve la, chutah chuan aluminum sulfate solution-ah ammonia tam zawk dah la, aluminum hydroxide precipitate chu kan hmu ang a, chu chu filter theih, sil theih, leh dried theih.
A rilru a buai em em a, a rilru a hah em em bawk a. AL2O4=Al2(So4)3+3H2O
A rilru a hah lutuk chuan a rilru a buai em em a, a rilru a hah lutuk chuan a rilru a buai em em bawk a. 2So4
2. Sodium hydroxide-ah aluminum oxide chu sodium metaaluminate solution hmuh theih nan dissolve la, chutah chuan carbon dioxide tam lutuk chu sodium metaaluminate solution-ah pass la, aluminum hydroxide chu kan hmu thei ang a, chu chu precipitate, filter theih, sil theih, leh dried. a ni thei ang.
Hriat tur chu, inbuatsaihna kalpui chhung hian ammonia tui leh carbon dioxide tam lutuk dah belh chhan chu alumina chu aluminum hydroxide-ah a inthlak vek theih nan a ni a, chu chuan product thianghlim zawk a hmu thei a ni.
