sodium tripolyphosphate is an inorganic substance with the chemical formula Na5P3O10. It is a kind of amorphous water soluble linear polyphosphate. It is widely used in food as a moisture store, quality enhancer, pH regulator and metal chelating agent.

sodium hexametaphosphate is an inorganic substance with the molecular formula (NaPO3)6, a white powder crystal or a colorless transparent glass flake or block solid. Soluble in water, insoluble in organic solvents.

Sodium carboxymethyl cellulose (CMC-Na) is an organic compound with the chemical formula [C6H7O2(OH)2OCH2COONA]n, a carboxymethylated cellulose derivative and the main ionic cellulose rubber.

The molecular formula of potassium sorbate is C6H7O2K, white to light yellow scaly crystals, crystal particles or crystal powder, odorless or slightly odorless, easily absorb moisture, oxidize and decompose, and discolour when exposed to air for extended periods of time.