Potassium Hydroxide

Key Stage 3

Meaning

Potassium Hydroxide is a solid (at room temperature) chemical compound with the formula KOH.

About Potassium Hydroxide

Potassium Hydroxide is a base.

When Potassium Hydroxide is dissolved in water it is an alkali.

Potassium Hydroxide reacts with acids to produce a Potassium salt:

Hydrochloric Acid + Potassium Hydroxide → Potassium Chloride + Water

Sulphuric Acid + Potassium Hydroxide → Potassium Sulphate + Water

Nitric Acid + Potassium Hydroxide → Potassium Nitrate + Water

Key Stage 4

Meaning

Potassium Hydroxide is a solid (STP) chemical compound with the formula KOH.

About Potassium Hydroxide

Potassium Hydroxide is a base.

Aqueous Potassium Hydroxide is an alkali.

Potassium Hydroxide is held together by ionic bonds.

Potassium Hydroxide has a giant ionic structure.

Potassium Hydroxide reacts with acids to produce a Potassium salt:

Hydrochloric Acid + Potassium Hydroxide → Potassium Chloride + Water

HCl + KOH → KCl + H₂O

Sulphuric Acid + Potassium Hydroxide → Potassium Sulphate + Water

H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O

Nitric Acid + Potassium Hydroxide → Potassium Nitrate + Water

HNO₃ + KOH → KNO₃ + H₂O