STPP(FG)

Sodium Tripolyphosphate is an inorganic compound with formula Na5P3O10, It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of tripolyphosphoric acid. It is produced on a large scale as a component of many domestic and industrial products, especially detergents. STPP is a preservative for seafood, meats, poultry, and animal feeds. It is common in food production as E number E451. In foods, STPP is used as an emulsifier and to retain moisture.

TSPP(FG)

Tetrasodium Pyrophosphate FG Used in the food processing applications: 

As a constituent of phosphate mixes used in the preparation of products such  as hamburgers and sausages. As a constituent of emulsifying - salt blends used in the manufacture of  processed cheese.  In solutions for the immersion - treatments of seafood to control yield and  modify texture.  As a general buffer, sequestrate and stabilizing agent in dairy products and  other foodstuffs  

SHMP(FG)

Sodium Hexametaphosphate (or SHMP) is used for stabilizing soups, juices and dairy products. For water treatment. As dispersing agent for water based coatings.

SAPP(FG)

Sodium Acid Pyrophosphate, or SAPP, is commonly used in the food industry as a leavening agent, acidulant, or buffer. It releases Carbon Dioxide slowly upon reaction with Sodium Bicarbonate. SAPP can also be used to maintain color in things like canned seafood or frozen potato products like hashbrowns.