Product of the Month January: Metaphosphoric acid

Metaphosphoric acid is an inorganic acid. It is known for its hygroscopic properties. Here you can learn more about the properties, applications and safety aspects of meta-phosphoric acid as a laboratory chemical.

Properties of Metaphosphoric acid

Metaphosphoric acid is a colorless, glassy substance that is solid at room temperature. It is highly soluble in water and forms a viscous solution. Their chemical structure consists of a chain of phosphorus and oxygen atoms that are stabilized by hydrogen bonds.

Metaphosphoric acid as a laboratory chemical

1. Catalyst in chemical reactions: Metaphosphoric acid is widely used as a catalyst in organic syntheses. It accelerates reactions without being consumed itself. An example of this is the esterification of carboxylic acids with alcohols.

2. Desiccant: Thanks to its hygroscopic properties, metaphosphoric acid is used as a desiccant. It can draw moisture from gases and liquids, which is useful in many analytical procedures.

3. Buffer solution: In analytical chemistry, metaphosphoric acid is mainly used for the preparation of buffer solutions. Buffer solutions are important to keep the pH constant in chemical reactions.

4. Caustic: In materials science, metaphosphoric acid is used as an etching agent, for example to process the surfaces of metals and semiconductors.

Our customers also use metaphosphoric acid

  • in food analysis for the determination of vitamins,
  • in biochemistry, for the precipitation of protein in biological fluids such as blood and urine,
  • in the veterinary field for the determination of urea in bovine blood, and
  • in the pharmaceutical industry as an additive in the production of diagnostic test strips.

Wear appropriate protective equipment

There are a few precautions to be taken when handling metaphosphoric acid . It is highly corrosive and can irritate the skin, eyes and respiratory tract. Appropriate protective equipment should be worn when using it. In addition, the work area should be well ventilated.

→ We would be happy to advise you personally on this product and look forward to your inquiry.

More news


Meet us in Milan

Our Head of Pharma, Michael Schaeffler, will be attending this year's CPhI and looks forward to meeting customers and partners in person.

Would you like to meet him at the event?...

Read more