矽膠系列
柱層層析矽膠
矽膠系列 2018-08-28 03:26:56
性狀:
本品為白色均勻顆粒,主要成分為二氧化矽,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: 
 主要用于石油産品的精制,脫除芳烴物質或用于中草藥有效成分的分離提純,高純度物質的制備等。
技術指标:
項目 指标
I類 II 類
型号 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

 

Baidu
sogou