Executive standard:GB/T 672-2006
含量[MgCl2·6H2O]Purity) % | ≥98.0 | 98.75 |
水不溶物( water-insoluble) % | ≤0.005 | 0.0022 |
总氮量(N) % | ≤0.005 | <0.005 |
澄清度试验/号(Clarity test) | ≤3 | qualified |
重金属(以Pb计)Heavy metals) % | ≤0.0005 | <0.0005 |
硫酸盐(SO4)(Ignition residue)% | ≤0.005 | <0.005 |
磷酸盐(PO4)(Phosphate) % | ≤0.001 | <0.001 |
钡和锶(以Ba计) % | ≤0.005 | <0.005 |
PH(50g/L,25℃) | 5.0~6.5 | 5.91 |
钙(Ca)(Calcium) % | ≤0.05 | <0.05 |
铁(Fe)(Iron) % | ≤0.0005 | <0.0005 |
砷(As) (Arsenic) % | ≤0.0002 | <0.0002 |
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