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Potassium pyrosulfate

Cas:
7790-62-7
Molecular Structure:
MDL:
MFCD00011385
Molecular Formula:
K2S2O7
Molecular Weight:
254.32
Alias:
Potassium disulfate
Product order:
Name Specifications Packing Price Delivery
Potassium pyrosulfate AR 500g RMB 66 Consulting service
Potassium pyrosulfate CP 500g RMB 55 Consulting service
Potassium pyrosulfate GR 500g RMB 88 Consulting service
Character:
无色结晶或熔块状。有吸湿性。易溶于水,水溶液呈强酸性。商品常为近于70%的焦硫酸钾的30%硫酸氢钾的混合物。
密度:2.28
熔点:325℃
Quality Standard:
HG 3-921-76
项目ltem                                分析纯         化学纯
                                         (AR)           (CP)
含量(K2S2O7)Assay,%                   ≥ 98.0           97.0
澄清度试验Clarity                        合格           合格
水不溶物lnsoluble matter in water,%   ≤ 0.01           0.015
氯化物(Cl)Chloridea,%                 ≤ 0.001          0.003
磷酸盐(PO4)Phosphate,%                ≤ 0.001          0.0015
钙及镁(以Ca计)Calcium and magnesium,% ≤ 0.005          0.01
铁(Fe)Iron,%                          ≤ 0.001          0.003
砷(As)Arsenic,%                       ≤ 0.0003         0.0005
重金属(以Pb计)Heavy metals,%          ≤ 0.0005         0.002
Storage:
密封保存。
化学分析用酸性溶剂。钢铁分析作电解金属的夹杂剂。
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