The formula of complex ion formed when aluminum hydroxide dissolves in sodium hydroxide will be: [Al(OH)]²⁺ [Al(OH)₂]+ Al(OH)₃ [Al(OH)₄]–
When aluminum hydroxide dissolves in sodium hydroxide:
Al(OH)₃ + NaOH → NaAlO₂ + 2H₂O,
So, the NaAlO₂ forms AlO₂⁻
Is aluminum hydroxide soluble in sodium hydroxide?
Aluminum hydroxide is soluble in excess of sodium hydroxide forming the ion.
Aluminum hydroxide, Al(OH)₃, is found in nature as the mineral gibbsite and its three much rarer polymorphs: bayerite, doyleite, and nordstrandite. Aluminum hydroxide is amphoteric, i.e., it has both basic and acidic properties.
What are the uses of Aluminum hydroxide?
Aluminum hydroxide is an antacid. Aluminum hydroxide is used to treat heartburn, upset stomach, sour stomach, or acid indigestion. Aluminum hydroxide is also used to reduce phosphate levels in people with certain kidney conditions.
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