Calcium pyrophosphate
What is Calcium pyrophosphate?
Calcium pyrophosphate (CAS 7790-76-3), also known as dicalcium diphosphate and abbreviated as CPP, is an inorganic calcium salt.
Where is Calcium pyrophosphate used?
- Oral care: polishing and abrasive agent in toothpaste formulations
- Food: acidity regulator and leavening component in processed foods, baked goods, and dry mixes
- Pharmaceutical solid dosage forms: calcium supplement excipient and diluent in tablet manufacturing
- Personal care: specialty powders and cleansing products requiring mild mechanical action
- It functions as an acidity regulator, buffering agent, and mild abrasive.
Good to know: Provides controlled enamel cleaning without excessive surface wear. Particularly useful where pH stability during processing is critical.
Commercial specifications
- White, fine powder in varying particle sizes
- Bulk quantities in multi-kilogram bags or supersacks
- Smaller packaging for laboratory and development-scale procurement
Other Names (Synonyms)
diphosphoric acid, calcium salt (2:1)|Dicalcium diphosphate (acidity regulator)|Ca2P2O7|Dicalcium pyrophosphate|Diphosphoric acid, calcium salt (1:2)|Calcium phosphate (Ca2P2O7)|Diphosphoric acid, calcium salt|Pyrophosphoric acid, calcium salt (1:2)|CPP