产品展示
硅胶系列
柱层层析硅胶
硅胶系列 2018-08-28 11:26
性状:
本品为白色均匀颗粒,主要成分为二氧化硅,具有纯度高,安全卫生之特 点,因其对不同物质组份吸附停留时间不同,能使不同的混合组份达到分离提纯的目的。
用途: 
 主要用于石油产品的精制,脱除芳烃物质或用于中草药有效成分的分离提纯,高纯度物质的制备等。
技术指标:
项目 指标
I类 II 类
型号 ZCX-1 ZCX-2 ZCX-3 ZCX-1 ZCX-2 ZCX-3
氯化物(Cl), % ≤ 0.02  
铁(Fe), % ≤ 0.02  
PH(100g/l水悬浮液) 6.0-7.0 6.0-8.0
铅(Pb),% ≤ 0.001  
砷(As),% ≤ 0.0003  
重金属(以Pb计),% ≤ 0.003  
加热减量,% ≤ 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 协议
 
 
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