Acidic Salt
| Formula / Notation | e.g., NaHSO₄; NaHCO₃; KH₂PO₄ |
|---|---|
| Also Known As | Hydrogen salt; acid salt; bisalt; hydrogen-containing salt; partial salt |
What is Acidic Salt?
An acidic salt is a salt formed by partial neutralisation of a polyprotic acid (an acid with more than one ionisable hydrogen) with a base. The salt still contains one or more replaceable hydrogen atoms and produces an acidic solution (pH < 7) when dissolved in water, because the hydrogen-containing anion can still donate a proton.
Formula & Notation
Other Names / Synonyms: Hydrogen salt; acid salt; bisalt; hydrogen-containing salt; partial 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
An acidic salt is a salt formed by partial neutralisation of a polyprotic acid (an acid with more than one ionisable hydrogen) with a base. The salt still contains one or more replaceable hydrogen atoms and produces an acidic solution (pH < 7) when dissolved in water, because the hydrogen-containing anion can still donate a proton.
Baking (NaHCO₃ as leavening agent); buffer solutions; food additives; fertilisers (KH₂PO₄); water treatment (NaHSO₄); cleaning products
Varies with specific salt — NaHSO₄ is corrosive and irritating; NaHCO₃ is safe. Always check the SDS for the specific acidic salt. Avoid inhalation of dust; wear gloves when handling concentrated solutions.
The formula or notation for Acidic Salt is: e.g., NaHSO₄; NaHCO₃; KH₂PO₄