Sodium Hexametaphosphate(SHMP) 68% ----Food Grade Mainly used as additive agent,PH adjusting agent, fermenting agent etc Sodium Hexametaphosphate (SHMP) 68%---Food GradeStandard Executed: GB1890-89Molecular Formula: (NaPO3 ... the fields of textile, printing and dying, papermaking, oil,Chemical industry, Leather, metallurgyand construction;And also used to analyze soil and ...