Aluminium hydroxide

A chemical compound used in medicine and industry

Aluminium hydroxide is a chemical compound with the formula Al(OH)_. It is a common component in various industrial and medical applications. This compound is found naturally as the mineral gibbsite and is an important precursor to other aluminium compounds.

Chemical Properties

Aluminium hydroxide is an amphoteric substance, meaning it can react with both acids and bases. In acidic solutions, it acts as a base, while in basic solutions, it acts as an acid. This property makes it useful in a variety of chemical reactions.

Medical Uses

Aluminium hydroxide is widely used in medicine, primarily as an antacid to neutralize stomach acid and relieve symptoms of indigestion and heartburn. It is also used as a vaccine adjuvant, enhancing the body's immune response to vaccines.

Antacid

As an antacid, aluminium hydroxide works by neutralizing excess stomach acid, thereby alleviating symptoms such as heartburn, acid indigestion, and upset stomach. It is often combined with other compounds like magnesium hydroxide to balance its constipating effects.

Vaccine Adjuvant

In vaccines, aluminium hydroxide acts as an adjuvant, which means it helps to boost the immune response to the vaccine. This allows for a stronger and longer-lasting immunity against the disease.

Industrial Applications

In industry, aluminium hydroxide is used as a precursor to other aluminium compounds, such as aluminium oxide and aluminium sulfate. It is also used as a fire retardant in plastics and as a filler in the production of paper and rubber.

Safety and Handling

While aluminium hydroxide is generally considered safe for use in medications and vaccines, it can cause side effects such as constipation when used as an antacid. In industrial settings, proper handling and safety measures should be observed to prevent inhalation or contact with skin and eyes.

Related Compounds

• Aluminium oxide
• Aluminium sulfate
• Magnesium hydroxide

See Also

• Antacid
• Vaccine adjuvant
• Gibbsite

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  Gibbsite crystal 3D balls
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  Hydroxid hlinitý
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  Bützflethermoor Rotschlammdeponie Luftaufnahmen 2012