• 硫氰酸钾 [333-20-0]

  • 英文名:Potassium thiocyanate
  • 别名:硫氰化钾
  • CAS号:333-20-0 分子式:KSCN 分子量:97.18
P139482-500g 硫氰酸钾 [333-20-0] 99.5% metals basis 500g 827.00 促销价:603.71
P139483-100g 硫氰酸钾 [333-20-0] 99.5% metals basis 100g 312.00 促销价:234.00
P139484-25g 硫氰酸钾 [333-20-0] 99.5% metals basis 25g 121.00 促销价:90.75
P139489-500g 硫氰酸钾 [333-20-0] AR 500g 80.00 促销价:50.40
P139480-100g 硫氰酸钾 [333-20-0] AR 100g 31.00 促销价:19.53
P139480-500g 硫氰酸钾 [333-20-0] GR 500g 86.00 促销价:54.18
P139481-100g 硫氰酸钾 [333-20-0] GR 100g 33.00 促销价:20.79
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P139482-500g 硫氰酸钾 [333-20-0] 99.5% metals basis 500g 827.00 603.71 登录可见
P139482-500g 硫氰酸钾 [333-20-0] 99.5% metals basis 500g 827.00 促销价:603.71
P139483-100g 硫氰酸钾 [333-20-0] 99.5% metals basis 100g 312.00 234.00 登录可见
P139483-100g 硫氰酸钾 [333-20-0] 99.5% metals basis 100g 312.00 促销价:234.00
P139484-25g 硫氰酸钾 [333-20-0] 99.5% metals basis 25g 121.00 90.75 登录可见
P139484-25g 硫氰酸钾 [333-20-0] 99.5% metals basis 25g 121.00 促销价:90.75
P139489-500g 硫氰酸钾 [333-20-0] AR 500g 80.00 50.40 登录可见
P139489-500g 硫氰酸钾 [333-20-0] AR 500g 80.00 促销价:50.40
P139480-100g 硫氰酸钾 [333-20-0] AR 100g 31.00 19.53 登录可见
P139480-100g 硫氰酸钾 [333-20-0] AR 100g 31.00 促销价:19.53
P139480-500g 硫氰酸钾 [333-20-0] GR 500g 86.00 54.18 登录可见
P139480-500g 硫氰酸钾 [333-20-0] GR 500g 86.00 促销价:54.18
P139481-100g 硫氰酸钾 [333-20-0] GR 100g 33.00 20.79 登录可见
P139481-100g 硫氰酸钾 [333-20-0] GR 100g 33.00 促销价:20.79
  •  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。易吸湿结块液化。熔融时变成棕色,以后渐变成绿色,冷却后仍变白色。1g溶于0.5ml丙酮、12ml乙醇、8ml沸乙醇。易溶于水。当溶于自身重量的水时,温度下降约30℃。水溶液呈中性。低毒,半数致死量(大鼠,经口)854mg/kg。 密度:1.89 熔点:1.73℃

质量标准

  

GB/T648-93
项目ltem                                    优级纯      分析纯     化学纯
                                             (GR)        (AR)      (CP)
含量(KSCN),%                               ≥99.0        98.5       98.0
pH(50g/L,25℃)                               5.3-8.5     5.3-8.5    5.3-8.5
澄清度试验Clarity                            合格        合格       合格
水不溶物lnsoluble matter in water,%        ≤0.003       0.005      0.01
氯化物(Cl)Chloride,%                       ≤0.003       0.005      0.01
硫化物(S)Sulfide,%                         ≤0.001       0.001      0.005
硫酸盐(SO4)Sulfale,%                       ≤0.002       0.005      0.02
铵盐(NH4)Ammornium,%                       ≤0.001      0.002      0.005
钠(Na)Sodium,%                             ≤0.01        0.02         --
铁(Fe)Iron,%                               ≤0.00005     0.0001     0.0002
铜(Cu)Copper,%                             ≤0.0002      0.0005       --
铅(Pb)Lead,%                               ≤0.0002      0.0005     0.001
还原碘的物质Substances reducing iodine,%     ≤0.02        0.025      0.06


项目名称                                                 ACS Grade
纯度Purity(Titration by AgNO3 )                             ≥99 %
水不溶物Insoluble matter                                   ≤0.005%
氯化物及氯酸盐(以Cl计)Chlorine and bromide(as Cl)          ≤0.005%
硫酸盐(SO4)Sulfate                                         ≤0.005%
铵盐(NH4)Ammonium                                          ≤0.003%
重金属(以Pb计)Heavy metals                                 ≤5ppm
铁(Fe)Iron                                                 ≤2ppm
钠(Na)Sodium                                               ≤0.005%
碘消耗物Iodine-consuming substances                        passes



99.99% metals basis:


外观Appearance                          Colorless to White Crystalline Powder or Crystals
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
ICP Major Analysis                      Confirms Hafnium component
总痕量金属杂质total metallic impurities   ≤200ppm by ICP Atomic emission

  

危险性质

  

用途及存储

配制硫氰酸盐滴定液。检定三价铁、铜和银。尿液检验。钨显色剂。容量法测定钛的指示剂。致冷剂。照相增厚剂

  密封干燥保存。