Hydroxide
| Formula / Notation | OH⁻; Kb(NaOH) = complete dissociation; pKb = − (strong base) |
|---|---|
| Also Known As | OH⁻, hydroxide ion, caustic (NaOH/KOH colloquially), metal hydroxide |
What is Hydroxide?
A compound containing the hydroxide ion (OH⁻) or the -OH group. Metal hydroxides are bases that dissociate to give OH⁻ ions in water. Sodium hydroxide (NaOH) and potassium hydroxide (KOH) are strong bases. The hydroxyl group (-OH) in organic molecules imparts polar character.
Formula & Notation
Other Names / Synonyms: OH⁻, hydroxide ion, caustic (NaOH/KOH colloquially), metal hydroxide
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 compound containing the hydroxide ion (OH⁻) or the -OH group. Metal hydroxides are bases that dissociate to give OH⁻ ions in water. Sodium hydroxide (NaOH) and potassium hydroxide (KOH) are strong bases. The hydroxyl group (-OH) in organic molecules imparts polar character.
Sodium hydroxide (caustic soda) is one of the most important industrial chemicals: used in paper manufacturing (kraft process), soap making (saponification), aluminium extraction (Bayer process), water treatment, textile processing, and as a drain cleaner. Calcium hydroxide (lime water) is used in w…
Strong metal hydroxides (NaOH, KOH, Ca(OH)₂) are severely corrosive. NaOH causes deep, penetrating chemical burns that are initially painless (unlike acid burns). Eye contact with NaOH solution can cause permanent blindness. Use face shield, chemical-resistant gloves, and a lab coat when handling.
The formula or notation for Hydroxide is: OH⁻; Kb(NaOH) = complete dissociation; pKb = − (strong base)