Spec.:AluminumTripolyphosphateHydrateAppearanceWhitepowderWhitecontent≥90%Moisture≤1.0%PH3-4Oiladsorption≤45%specificgr***ity2.7-3.0P2O560%-68%Al2O316%-20%Zinccontent(ZnO)≤10%Sieveresidue(３２５meshes)≤0.5%)