粗孔硅胶为乳白色颗粒。分为球形(SG05)和块状(SG06)两类。主要成分为SiO2.nH2O,不溶于水和无机酸,溶于氢氟酸和浓苛性碱溶液。其内部结构为孔容0.78-1.00ml/g,孔径80-100Å,比表面积350-500m2/g。
本品主要用于干燥各种工业气体如空气、氧气、氢气、氯气和有机气体,从变压器油中吸附有机酸和水分,药物提纯和分离,工业发酵过程中吸附高分子蛋白,吸附水中多价有害元素,物品防潮以及饲养宠物的垫料,催化剂载体,也是进一步加工精细硅胶系列产品的基础原料。其技术指标如表3所示:
Table 3 Specification for Wide Pore Silica Gel
项目 | Specification |
|
Spherical Form(SG05) | Lumpy Form(SG06) |
|
Adsorption Capacity% ≥ | 78 | 78 |
|
Bulk Density g/l≥ | 400-500 | 400-500 |
|
Loss on ignition % ≤ | 5.0 | 5.0 |
|
pH | 4-8 | 4-8 |
|
SiO2 content %≥ | 98 | 98 |
|
Particle Size mm | 4.0-8.0,2.0-5.6 | 1.4-4.0,2.8-8.0,≥5.6 |
|
Bead Quality %≥ | 82 | --- |
|
Particle Quality%≥ | 90 |
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Note:Custom as per customers’ requirement |
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Packing: Packed in 20kg/composite bag lined PE bagsealed; or packing as per customer’ requirements.