1.Propylene glycol alginate ester 2.Propylene Glycol Alginate 3.PGA 4.Cas:9005-37-2 5. ... as a thickener, emulsifier and stabilizer to use Propylene glycol alginate ester of a strong acid, can be ... applied to the acidity of pH3-5 environment. Propylene glycol alginate ester has good foaming and emulsifying capacity. Widely ... 0.0002heavy metal,%≤ 0.002lead,%≤ 0.0005 Propylene glycol alginate ester(PGA)