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specification:
Items Pharma Grade Food Grade GB2023-80
Content % 85-90 ≥80
chloride % ≤0.002 ≤0.002
sulphate % ≤0.01 ≤0.01
iron % ≤0.001 ≤0.001
residualon ignition ≤0.1 ≤0.1
heavy metal % ≤0.001 ≤0.001
arsenate % ≤0.0001 ≤0.0001
free carbonizing % no brown color at interface
Lactic acid