Read more Sodium hexaMeta Phosphate Sodium hexametaphosphate (Sodium hmp), also known as Calgon or Graham’s salt, is used as an emulsifier with the index E452i in the preparation of most food products. As a dispersing and emulsifying agent, this substance has various uses in various industries, including the food industry, especially in cheese processing and the production of chemicals. Call. 01732220442-01732255539 02186053798 09903300609