Sodium hexametaphosphate (SHMP) is a condensed polyphosphate được sản xuất bởi melting monosodium phosphate at high nhiệt độs followed by rapid quenching to form a glassy solid. It consists of polymeric chains of phosphate units with an average chain length of 10 to 25 units.
SHMP is one of the most widely used cấp thực phẩm polyphosphates due to its exceptional sequestering, dispersing, and water-softening properties. In beverages, it prevents calcium and magnesium precipitation that causes turbidity and scale formation. SHMP also chức năngs as an effective chất nhũ hóa, texturizer, and moisture-binding agent in meat, dairy, and seafood chế biến.