1. 硅膠系列
      柱層層析硅膠
      硅膠系列 2018-08-28 03:26:56
      性狀:
      本品爲白色均勻顆粒,主要成分爲二氧化硅,具有純度高,安全衛生之特 點,因其對不同物質組份吸附停留時間不同,能使不同的混合組份達到分離提純的目的。
      用途: 
       主要用於石油產品的精製,脫除芳烴物質或用於中草藥有效成分的分離提純,高純度物質的製備等。
      技術指標:
      項目 指標
      I類 II 類
      型號 ZCX-1 ZCX-2 ZCX-3 ZCX-1 ZCX-2 ZCX-3
      氯化物(Cl), % ≤ 0.02  
      鐵(Fe), % ≤ 0.02  
      PH(100g/l水懸浮液) 6.0-7.0 6.0-8.0
      鉛(Pb),% ≤ 0.001  
      砷(As),% ≤ 0.0003  
      重金屬(以Pb計),% ≤ 0.003  
      加熱減量,% ≤ 3.0 5.0
      比表面,m2/g ≥550 300-500 200-300 ≥550 300-500 200-300
      孔容,ml/g ≤0.70 0.70-0.90 ≥0.85 ≤0.70 0.70-0.90 ≥0.85
      粒度合格率,% ≥ > 150μ75-150μ50-75μ< 50μ
       80  80  60   60
      > 150μ75-150μ50-75μ< 50μ
       80  80  60   60
      粒度 mm 協議
       
       
      Silica Gel for Column-layer Chromatography
      Characteristics
      White grains of homogeneous size. Chief ingredient is silicon dioxide Of high purity. Secure and sanitary. Can be used to separate and refine mixed components because different absorption duration on this silica gel
      Use
      For refinement of petrol products, removal of aromatic hydrocarbon material, separation and refinement of traditional Chinese herbal medicine components, preparation of high purity substance, etc.
      Technical Data
      ITEM Specifications
      Type I Type II
      Type ZCX-1 ZCX-2 ZCX-3 ZCX-1 ZCX-2 ZCX-3
      Chlorides(Cl), %≤ 0.02  
      Iron(Fe), %≤ 0.02  
      PH(100g/l water suspension) 6.0-7.0 6.0-8.0
      Lead(Pb), %≤ 0.001  
      Arsenic(As), %≤ 0.0003  
      Heavy metals (by Pb), %≤ 0.003  
      Loss on heating, %≤ 3.0 5.0
      Specific surface, m2/g ≥550 300-500 200-300 ≥550 300-500 200-300
      Pore volume, ml/g ≤0.70 0.70-0.90 ≥0.85 ≤0.70 0.70-0.90 ≥0.85
      Granularity eligibility, %≥ > 150μ75-150μ50-75μ< 50μ
       80  80  60   60
      > 150μ75-150μ50-75μ< 50μ
       80  80  60   60
      Granularity, mm To be decided upon buyers requirements