硅胶
指标项目 |
单位 |
细孔硅胶 |
粗孔硅胶 |
蓝色硅胶 |
橙色硅胶 |
耐水硅铝胶 |
不耐水硅铝胶 |
||
吸附量 |
RH=20% |
% |
≥10 |
- |
- |
≥9.0 |
≥5.8 |
≥5.6 |
|
RH=40% |
|
- |
- |
- |
- |
≥11.5 |
≥19.5 |
||
RH=50% |
% |
≥22 |
- |
≥18.0 |
≥22.0 |
- |
|
||
RH=80% |
|
- |
- |
- |
- |
≥30 |
≥44 |
||
RH=90% |
% |
≥32 |
- |
≥28.0 |
- |
- |
|
||
加热减量 |
% |
4.0 |
≤7.0 |
≤5.0 |
≤2.0 |
- |
|
||
粒度下限 |
% |
协议 |
≤5.0 |
- |
- |
- |
|
||
孔容 |
mL/g |
- |
≥0.76 |
- |
- |
≥0.40 |
≥0.45 |
||
球形颗粒合格率 |
% |
- |
≥60 |
≥90 |
≥90 |
- |
|
||
磨耗率 |
% |
- |
|
≤10.0 |
≤10.0 |
≤0.05 |
≤0.05 |
||
堆积密度 |
g/L |
协议 |
480-520 |
- |
- |
700 |
700 |
||
比表面积 |
m2/g |
- |
- |
- |
- |
≥550 |
≥700 |
||
显色变化 |
RH=20% |
|
- |
- |
- |
橘红色 |
- |
|
|
RH=35% |
|
- |
- |
- |
浅橘红色 |
- |
|
||
RH=50% |
|
- |
- |
浅紫色或浅红色 |
浅橘黄色 |
- |
|
||
|
|
||||||||
用途:各种气液相物料干燥,及变色显示 |
|