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Potassium dihydrogen phosphate
Sample Potassium dihydrogen phosphate Quantity 35t Sampling date 2014.09.24
Sample from Storehouse Batch NO. 140905 Test date 2014.09.24
Standard: HG/T4511-2013
Item Index value Results
Top grade First grade Qualified products
Appearance White, light-colored crystals or powder White crystal
Potassium dihydrogen phosphate (KH2PO4)           w/ % ≥ 99.0 98.0 97.0 99.2
K2O                        w/ %  ≥ 34.0 33.5 33.0 34.1
Moisture (H2O)                             w/ %  ≤ 0.5 1.0 2.0 0.1
Chloride (as CL)                    w/ %  ≤ 0.05 0.2 - 0.002
Iron (Fe)                                      w/ %  ≤ 0.003 0.008 - 0.0003
Arsenic (As)                                     w/ %  ≤ 0.005 0.015 - 0.003
Heavy metal (as Pb)                     w/ %  ≤ 0.005 0.008 - <0.005
Water insoluble matter                             w/ % ≤ 0.1 0.2 0.5 0.02
PH(30g/L solution) 4.3 to 4.7 4.5
Evaluation:  
in accordance with HG/T4511-2013 
Tested by Xu Hui Checked by Tan Qin Approved by
Date 2014.09.24 Date 2014.09.24 Date 2014.09.24


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