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ZH1999-08/Rnone-poulenc standard. rhombic crystal in leuko color or white luster, soluble and not solved in acid. Certificate Analysis OF Mono Potassium Phosphate Qualification No. of Inspection Organization: 5101000290A-0210 ItemSpecifications First GradeResult Main contents(KH2PO4 in dry basis) % ≥ 98.099.5Moisture % ≤2.50.079PH value 4.3 ---4.74.4Water insoluble % ≤0.20.006Chloride(as Cl) % ≤0.20.01Ferric (as Fe) % ≤0.0030.0005Arsenic ( as As)% ≤0.0050.002Heavy metal(as Pb) % ≤0.0050.002Potassium oxide (As K2O in dry basis) % ≥ 33.934.4P2O5 % ≥ 51.552.0AppearanceWhite crystal QUALIFIED ISSUED BY: CHENGDU CHEMICAL CO., LTD.