• 钨酸钠 [10213-10-2]

  • 英文名:Sodium tungstate dihydrate
  • 别名:钨酸钠,二水 钨酸钠二水合物 二水合钨酸钠 正钨酸钠
  • CAS号:10213-10-2 分子式:H4NA2O6W 分子量:329.85
P100582-5g 钨酸钠 [10213-10-2] 99.995% 5g 285.00
P100581-500g 钨酸钠 [10213-10-2] ACS, 99.0-101.0% 500g 420.00
P100580-100g 钨酸钠 [10213-10-2] ACS, 99.0-101.0% 100g 98.00
P100586-500g 钨酸钠 [10213-10-2] AR 500g 150.00 促销价:97.50
P100585-100g 钨酸钠 [10213-10-2] AR 100g 63.00 促销价:40.95
P100588-25g 钨酸钠 [10213-10-2] AR 25g 36.00 促销价:23.40
P100589-500g 钨酸钠 [10213-10-2] GR 500g 163.00 促销价:105.95
P100588-25g 钨酸钠 [10213-10-2] SP 25g 160.00
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P100582-5g 钨酸钠 [10213-10-2] 99.995% 5g 285.00 285.00 登录可见
P100582-5g 钨酸钠 [10213-10-2] 99.995% 5g 285.00
P100581-500g 钨酸钠 [10213-10-2] ACS, 99.0-101.0% 500g 420.00 420.00 登录可见
P100581-500g 钨酸钠 [10213-10-2] ACS, 99.0-101.0% 500g 420.00
P100580-100g 钨酸钠 [10213-10-2] ACS, 99.0-101.0% 100g 98.00 98.00 登录可见
P100580-100g 钨酸钠 [10213-10-2] ACS, 99.0-101.0% 100g 98.00
P100586-500g 钨酸钠 [10213-10-2] AR 500g 150.00 97.50 登录可见
P100586-500g 钨酸钠 [10213-10-2] AR 500g 150.00 促销价:97.50
P100585-100g 钨酸钠 [10213-10-2] AR 100g 63.00 40.95 登录可见
P100585-100g 钨酸钠 [10213-10-2] AR 100g 63.00 促销价:40.95
P100588-25g 钨酸钠 [10213-10-2] AR 25g 36.00 23.40 登录可见
P100588-25g 钨酸钠 [10213-10-2] AR 25g 36.00 促销价:23.40
P100589-500g 钨酸钠 [10213-10-2] GR 500g 163.00 105.95 登录可见
P100589-500g 钨酸钠 [10213-10-2] GR 500g 163.00 促销价:105.95
P100588-25g 钨酸钠 [10213-10-2] SP 25g 160.00 160.00 登录可见
P100588-25g 钨酸钠 [10213-10-2] SP 25g 160.00
  •  订货编号
  •  商品名称
  •  规格
  •  包装
  •  单价
  •  促销价
  •  会员价
  •  数量

化学性质

无色结晶或白色斜方晶系结晶。 溶于水,呈微碱性。不溶于乙醇,微溶于氨。 熔点 698 °C(lit.) 密度 4.18 溶解度 H2O: 1 M at 20 °C, clear, colorless 水溶解性 730 g/L (20 oC)

质量标准

  

99.995% metals basis:


外观Appearance                                       白色粉末、结晶或块状
纯度Purity                                                  ≥99.995% Based On Trace Metals Analysis of ICP
ICP:                                                            Confirms Tungsten Component Confirmed
钨W                                                             54.3 - 57.1 % (With Cinchonine)
痕量金属分析Trace Metal Analysis        ≤60ppm by ICP Atomic emission
(B、Ba、Ca、Co、Cr、Cu、K、Ni、Ti)

项目Item                      分析纯   化学纯
                                                                (AR)        (CP)
含量(Na2WO4·2H2O)Assay,%      ≥99.5      99.0
碱性试验Akali test                                合格      合格
氯化物(Cl)Chloride,%                        ≤0.005     0.007
硫酸盐(SO4)Sulfate,%                        ≤0.01      0.02
氮化合物(N)Nitrogen,%                       ≤0.001     0.004
铁(Fe)Iron,%                                         ≤0.0005    0.0001
钼(Mo)Molybdenum,%                          ≤0.001     0.005
砷(As)Arsenic,%                                    ≤0.0005    0.0005
重金属(以Pb计)Heavy metals,%         ≤0.0005    0.0002



品级Grade                                                  ACS级  
                                                            (ACS, 99.0-101.0% )
外观Appearance                                白色结晶或结晶粉末
X-射线衍射分析X-Ray Diffraction           Conforms to Structure
纯度Purity                                            99.0 - 101.0 % (Gravimetric Analysis)
不溶物Insoluble matter                    ≤0.01 %
氯Chloride Content                         ≤0.005 %
重金属和铁Heavy Metals and Iron (as Lead) ≤0.001 %
钼Molybdenum                                ≤0.001 %
硫酸根Sulfate (SO4)                       ≤0.01 %
可滴定碱Titratable base                 ≤0.02 meq

  

危险性质

危险品标志  Xn
WGK Germany  1
RTECS号 YO7900000
危险类别码  22-36/38
安全说明  36-37/39-26 
海关编码  28418000

  

用途及存储

用途  用于金属钨、钨酸及钨酸盐类的制造。用做媒染剂、颜料和催化剂。还可做织物防火剂以及分析化学试剂。
用途  用于制造金属钨、钨酸、钨酸盐、染料、油墨、催化剂等

  密封干燥保存。