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Glycerol (or glycerine , glycerin ) is a simple polyol compound.
Disodium pyrophosphate or sodium acid pyrophosphate is a buffering and chelating agent , with many food and industrial uses.
Sheftel, VO. Indirect Food Additives and Polymers: Migration and Toxicology . Lewis 2000 pp.1114-1116 Structural Formula. HO[~CH 2 CH 2 O~] n H M = 500,000 to 10,000000 CAS No 25322-68-3 RTECS No TQ3500000 Abbreviation . PEGs.