Name | Specifications | Packing | Price | Delivery |
Sodium tungstate dihydrate | AR | 500g | RMB 220 | 促銷 |
Sodium tungstate dihydrate | AR | 100g | RMB 68.2 | 促銷 |
品級(jí)Grade ACS級(jí)
(ACS, 99.0-101.0% )
外觀Appearance 白色結(jié)晶或結(jié)晶粉末
X-射線衍射分析X-Ray Diffraction Conforms to Structure
純度Purity 99.0 - 101.0 % (Gravimetric Analysis)
不溶物Insoluble matter ≤0.01 %
氯Chloride Content ≤0.005 %
重金屬和鐵Heavy Metals and Iron (as Lead) ≤0.001 %
鉬Molybdenum ≤0.001 %
硫酸根Sulfate (SO4) ≤0.01 %
可滴定堿Titratable base ≤0.02 meq
99.995% metals basis:
外觀Appearance 白色粉末、結(jié)晶或塊狀
純度Purity ≥99.995% Based On Trace Metals Analysis of ICP
ICP: Confirms Tungsten Component Confirmed
鎢W 54.3 - 57.1 % (With Cinchonine)
痕量金屬分析Trace Metal Analysis ≤60ppm by ICP Atomic emission
(B、Ba、Ca、Co、Cr、Cu、K、Ni、Ti)
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