E340(i) – Potassium dihydrogen phosphate

General Information

Potassium dihydrogen phosphate or monopotassium phosphate (food additive E340(i)) is a mildly acidic salt belonging to the group of potassium phosphates, collectively labeled as E340.

The chemical formula of additive E340(i) is KH₂PO₄. Monopotassium phosphate is a white, odorless crystalline powder that dissolves well in water.

In the food industry, additive E340(i) is used as an acidity regulator, emulsifier, stabilizer, and moisture-retaining agent. Due to its ability to maintain an acidic or neutral pH, monopotassium phosphate is applied to stabilize the color of vegetables during heat treatment, preventing discoloration.

E340(i) is also used in the production of instant coffee, dairy products, bakery goods, and confectionery, where it helps improve texture and extend shelf life.

For more details on the properties, benefits, and risks of potassium phosphates, refer to the comprehensive description of additive E340.