Aluminium Sulphate Octadecahydrate

Aluminium sulfate octahydrate yog ib qho tshuaj lom neeg nrog cov mis Al2 (SO4) 3 · 18H2O. Nyob rau hauv ib txwm kub thiab siab, Aluminium sulfate octahydrateis dawb amorphous siv lead ua los yog particle, soluble nyob rau hauv dej tab sis insoluble nyob rau hauv cawv organic solvents. Aluminium sulphate octahydrate ruaj khov nyob rau hauv huab cua thiab pib huab cua thaum tus txheeb ze av noo yog li 20%. Nws maj mam ua kom sov thiab yaj, poob dej crystalline ntawm 250 degree thiab decomposing ntawm qhov kub siab dua.

Cov tshuaj aqueous ntawm octahydrate aluminium sulfate yog acidic thiab muaj qaub thiab astringent saj. Nws pib decompose thaum rhuab mus rau 530 degree, thiab cov khoom kawg ntawm decomposition yog aluminium trioxide ntawm 860 degree . Thaum lub sij hawm hydrolysis txheej txheem ntawm octahydrate aluminium sulphate, cov khoom nruab nrab alkaline ntsev yog thawj zaug, tom qab tsim ntawm txhuas hydroxide. Aluminium sulphate tuaj yeem ua rau 18 molecules ntawm crystalline dej ntawm chav tsev kub, uas yog octahydrate aluminium sulfate. Nws muaj 51.3% anhydrous txhuas sulfate thiab yuav tsis yaj nws tus kheej (kua hauv nws tus kheej crystalline dej) txawm nyob rau ntawm 100 degree. Cov tshuaj no tsis yooj yim rau huab cua thiab poob dej crystalline. Nws yog qhov ruaj khov thiab yuav poob dej thaum rhuab. Thaum kub kub, nws yuav decompose rau hauv oxides ntawm txhuas oxide thiab sulfur. Nws yog rhuab mus rau 770 degree thiab pib decompose rau hauv alumina, sulfur trioxide, sulfur dioxide, thiab dej vapor. Cov tshuaj aqueous ntawm octahydrate aluminium sulfate tuaj yeem boil rau lub sijhawm ntev los tsim cov aluminium sulfate. Cov khoom lag luam yog grey dawb flakes, granules, los yog blocks, nrog lub teeb ntsuab xim vim muaj cov hlau tsis tshua muaj ntsev, thiab qhov saum npoo tig daj vim oxidation ntawm cov ntsev tsawg hlau.

Cim npe nrov: Tuam Tshoj aluminium sulphate octadecahydrate manufacturers, lwm tus neeg, Hoobkas