How do you prepare potassium nitrate from nitric acid and potassium hydroxide?

[Author © Dr Phil Brown PhD: Doc Brown's chemistry exam revision notes on making salts suitable for students of UK IGCSE & GCSE level chemistry courses & ~ US grades 9-10 chemistry [page updated Feb 28th 2026 *]

[email doc b: comment/query?] * [privacy-policies-disclaimer] * ]SEARCH doc b's website]

Equations for the preparation of the soluble salt potassium nitrate

word equation:

nitric acid + potassium hydroxide ==> potassium nitrate + water

preparation of potassium nitrate from potassium hydroxide and nitric acid soluble salt preparation from soluble base alkali acid neutralisationsymbol equations: with and without state symbols

HNO3(aq) + KOH(aq) ==> KNO3(aq) + H2O(l)

HNO3 + KOH ==> KNO3 + H2O

Details of method for making soluble salts from an alkali solution and mineral acid

Comments:

Potassium nitrate is used in fertilisers and explosives.

SEARCH Doc Brown's Chemistry Website

Links to GCSE level chemistry notes

All my acids-bases-salts notes

Group 1 Alkali Metals and compounds

Fertilisers, nitric acid and nitrates

Advanced level chemistry notes

Group 1 Alkali Metals and compounds

Group 5/15 chemistry, including N compounds

Website content © Doc Brown's Chemistry 2000+. All copyrights reserved on my chemistry revision notes, images, quizzes, worksheets etc. Copying of 'Doc Brown's Chemistry' website material is NOT permitted. Explaining the importance of potassium nitrate KNO3 in GCSE level chemistry, What you need to know about preparing potassium nitrate KNO3 for GCSE level chemistry, Explaining the use of potassium nitrate KNO3 knowledge in GCSE level chemistry, chemicals to make potassium nitrate KNO3 explained when studying GCSE level chemistry, What is the significance of preparing the salt potassium nitrate KNO3 in GCSE level chemistry, describing and explaining the theory of making potassium nitrate KNO3 when studying GCSE level chemistry, exam revision notes for making the salt potassium nitrate KNO3, what do I need to learn about making potassium nitrate KNO3? how to prepare for questions on preparing potassium nitrate KNO3 in a GCSE chemistry examination? revision notes and key points on how to make potassium nitrate KNO3 for students taking the AQA igcse/gcse chemistry notes on potassium nitrate KNO3, Edexcel gcse chemistry notes on potassium nitrate KNO3,  OCR 21st century GCSE chemistry notes on potassium nitrate KNO3, OCR gateway GCSE chemistry notes on potassium nitrate KNO3, WJEC gcse chemistry notes on potassium nitrate KNO3, CCEA gcse chemistry notes on potassium nitrate KNO3 for students taking CIE Cambridge igcse chemistry, or any other GCSE or IGCSE level chemistry exams notes on potassium nitrate KNO3, useful for US grade 9-10 chemistry courses