Name | Specifications | Packing | Price | Delivery |
Sodium carbonate anhydrous | ACS | 500g | RMB 41.8 | Consulting service |
Sodium carbonate anhydrous | SP | 25g | RMB 107.8 | Consulting service |
Sodium carbonate anhydrous | AR | 500g | RMB 30.8 | Consulting service |
GB 1255-90
项目Item 基准试剂
(PT)
含量(Na2CO3)Assay,% 99.5-100.05
澄清度试验Clarity 合格
灼烧失重Ignition loss,% ≤0.5
氯化物(Cl)Chloride,% ≤0.001
硫化合物(以SO4计)Sulfate compounds,% ≤0.003
总氮量(N)Total nitrogen,% ≤0.001
磷酸盐及硅酸盐(以SiO3计) ≤0.0025
Phosphate and Silicate,%
镁(Mg)Magnesium,% ≤0.0005
铝(Al)Aluminum,% ≤0.001
钾(K)Potassium,% ≤0.005
钙(Ca)Calcium,% ≤0.01
铁(Fe)Iron,% ≤0.0003
重金属(以Pb计)Heavy metals,% ≤0.0005
ACS级
项目名称 ACS Grade
含量(干基)Assay ≥99.5%
水不溶物Insoluble matter ≤0.01%
干燥失重(285℃)Loss on drying at 285℃ ≤1.0%
氯化物(Cl)Chloride ≤0.001%
磷酸盐(PO4)Phosphate ≤0.001%
硅酸盐(以SiO2计)Silica ≤0.005%
硫化合物(以SO4计)Sulfur compounds ≤0.003%
重金属(以Pb计)Heavy metals ≤5ppm
铁(Fe)Iron ≤5ppm
钙(Ca)Calcium ≤0.03%
镁(Mg)Magnesium ≤0.005%
钾(K)Potassium ≤0.005%
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