Description

Potassium Hydrogen Phthalate AR 500g

Potassium Hydrogen Phthalate (KHP) is primarily used in a laboratory as a primary standard for acid-base titrations due to its stability, purity, and ease of accurate weighing, allowing for precise standardization of base solutions like sodium hydroxide (NaOH).
Key points about KHP usage:
Standardization:
It is commonly used to determine the exact concentration of a base solution by titrating it against a known weight of KHP.
Solid and stable:
KHP is a solid compound that is not readily affected by air, making it ideal for weighing precisely.
pH calibration:
KHP can also be used as a secondary standard for calibrating pH meters due to its known pH value.