Na lolenge ya monene, ezali na ba alumine mingi ya molunge makasi na zando. ndakisa, basali mingi ya molunge ya nse babakisaka biloko mosusu na yango, kasi bokeseni kati na yango mpe alumine esengeli komonana na bizaleli na yango.
Alumine oyo ekoki kozala na température makasi .
1, Alumina ya type esalemaka na déshydratation ya hydroxyde d'aluminium na température ya nse ya 140-150 degré . Ebengami pe alumine activée pe colle ya aluminium na industrie.
2, - al ν o ₃ ekoki kobongwana na na 950 ~ 1200 degré - al ν o ₃ (corundum), na rétrécissement ya volume ya ntina.
3, - Al? O? Point de fondue: 2000 ± 15 degré .
Alumina has a melting point of more than 2000 degrees. It is a white solid insoluble in water. It is tasteless, hard in texture, easy to absorb moisture but not deliquescent. It belongs to amphoteric oxide, which can be dissolved in inorganic acid and alkaline solutions, and almost insoluble in water and non-polar organic solvents. Na tina ya résistance na yango ya température makasi, ekoki kosalelama lokola refractaire.
Alumine ya température ya likolo ezali alumina calciné na température ya likolo, oyo ezali généralement forme cristalline, résistance ya corrosion acide mpe alcali mpe makasi ya likolo. Esalemaka mingi mingi lokola scellant mpe remplissage alumine. composante principale ya corundum oyo tomeseni na yango ezali - al2o3 ekoki kosalelama lokola roulement ya ba instruments{e{bimais, lokola diamant, etc.
Na ba propriétés ya mibale, ezali naino na bokeseni ya moboko kati na alumine ya température makasi mpe alumine. moko ebongi mpo na biloko ya koboya, mpe mosusu ezali makasi mpe ekoki kosalelama mpo na biloko ya koumela, mpo ete bakoka kosala mikumba na bango na makambo ndenge na ndenge.
