Usage: In food i ndustry, it is used as leavening agent, dough regulator, buffer, modifier, solidification agent, nutritional su Quality standard: (HG2927-1999 FCC-)Name of indexHG2927-1999FCC-IVContent ( as Ca) %15.2-17.015.9-17.7Pb , ≤%-0.0002 As, ≤%0.00030.0003Heavy metal (Pb),≤%0.0020.0015Fluoride,≤%0.00250.005Moisture(60),≤%-1.0Loss on heating (180 3h),≤%17-Clear gradeAccord with the test- ...