焦硫酸钾 [7790-62-7]
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英文名:Potassium pyrosulfate
- 别名:硫酸氢钾 无水酸性硫酸钾 无水重硫酸钾
- CAS号:7790-62-7 分子式:K2O7S2 分子量:254.32
P62944-500g 焦硫酸钾 [7790-62-7] AR 500g 83.00 促销价:52.29
P62942-100g 焦硫酸钾 [7790-62-7] AR 100g 38.00 促销价:23.94
P62942-500g 焦硫酸钾 [7790-62-7] GR 500g 91.00 促销价:57.33
P62941-100g 焦硫酸钾 [7790-62-7] GR 100g 40.00 促销价:25.20
P62947-100g 焦硫酸钾 [7790-62-7] PT 100g 154.00 促销价:107.80
P62946-25G 焦硫酸钾 [7790-62-7] SP 25g 154.00 促销价:107.80
订货编号 | 商品名称 | 规格 | 包装 | 单价 | 促销价 | 会员价 | 数量 |
P62943-25G | 焦硫酸钾 [7790-62-7] | 99.8% | 100g | 68.00 | 47.60 | 登录可见 |
P62943-25G 焦硫酸钾 [7790-62-7] 99.8% 100g 68.00 促销价:47.60
|
P62944-500g | 焦硫酸钾 [7790-62-7] | AR | 500g | 83.00 | 52.29 | 登录可见 |
P62944-500g 焦硫酸钾 [7790-62-7] AR 500g 83.00 促销价:52.29
|
P62942-100g | 焦硫酸钾 [7790-62-7] | AR | 100g | 38.00 | 23.94 | 登录可见 |
P62942-100g 焦硫酸钾 [7790-62-7] AR 100g 38.00 促销价:23.94
|
P62942-500g | 焦硫酸钾 [7790-62-7] | GR | 500g | 91.00 | 57.33 | 登录可见 |
P62942-500g 焦硫酸钾 [7790-62-7] GR 500g 91.00 促销价:57.33
|
P62941-100g | 焦硫酸钾 [7790-62-7] | GR | 100g | 40.00 | 25.20 | 登录可见 |
P62941-100g 焦硫酸钾 [7790-62-7] GR 100g 40.00 促销价:25.20
|
P62947-100g | 焦硫酸钾 [7790-62-7] | PT | 100g | 154.00 | 107.80 | 登录可见 |
P62947-100g 焦硫酸钾 [7790-62-7] PT 100g 154.00 促销价:107.80
|
P62946-25G | 焦硫酸钾 [7790-62-7] | SP | 25g | 154.00 | 107.80 | 登录可见 |
P62946-25G 焦硫酸钾 [7790-62-7] SP 25g 154.00 促销价:107.80
|
化学性质
质量标准
HG 3-921-76
99.99% metals basis:
外观Appearance White powder or chunks
X-射线衍射X-Ray Diffraction Conforms to Structure
纯度Purity ≥99.99% Based on Trace Metals Impurities
ICP Major Analysis Confirms Potassium and Sulfur Components
纯度Purity (Titration by NaOH) 98.5-101.5 %
总痕量金属杂质total metallic impurities ≤100ppm by ICP Atomic emission
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
危险性质
危险品标志 C
WGK Germany 3
HazardClass 8
PackingGroup II
危险类别码 34
安全说明 26-36/37/39-45
用途及存储
化学分析上用作酸性溶剂,钢铁分析用作电解金属的夹杂剂
密封干燥保存。