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