Basic Salt
| Formula / Notation | e.g., Mg(OH)Cl; Cu(OH)NO₃; Pb(OH)Cl |
|---|---|
| Also Known As | Hydroxy salt; hydroxo salt; partial salt; oxy salt; sub-salt |
What is Basic Salt?
A basic salt is a salt that contains both an anion from an acid and hydroxide (OH⁻) ions, formed by the partial neutralisation of a polyhydroxy base by an acid. The salt can still act as a weak base in solution. Common examples include basic copper(II) carbonate (malachite), bismuth oxychloride, and white lead [Pb(OH)₂·2PbCO₃].
Formula & Notation
Other Names / Synonyms: Hydroxy salt; hydroxo salt; partial salt; oxy salt; sub-salt
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A basic salt is a salt that contains both an anion from an acid and hydroxide (OH⁻) ions, formed by the partial neutralisation of a polyhydroxy base by an acid. The salt can still act as a weak base in solution. Common examples include basic copper(II) carbonate (malachite), bismuth oxychloride, and white lead [Pb(OH)₂·2PbCO₃].
Pigments and paints (basic copper carbonate — malachite; basic lead carbonate — white lead); pharmaceuticals (bismuth subcarbonate as antacid); ceramics; historical pigments; water treatment
Varies by compound. Lead-containing basic salts (white lead) are highly toxic and carcinogenic — no longer used in consumer products. Bismuth salts are relatively safe. Copper basic salts are irritating. Check SDS for specific compound.
The formula or notation for Basic Salt is: e.g., Mg(OH)Cl; Cu(OH)NO₃; Pb(OH)Cl