分子筛, 5 Å

分子筛, 5 Å

分子式: Ca_/nNa_12-2n[(AlO₂)₁₂(SiO₂)₁₂] · xH₂O
5A分子筛的孔径约5埃。有效孔径0.5～0.57nm。有刺激性。溶于强酸或强碱并分解，不溶于水和有机溶剂。有吸湿性。选择性吸附剂。催化剂或催化剂载体。用于正、异构烷烃的分离和氧氮的分离、石油和石油气的脱硫、气体和液体的干燥和纯化。
 

应用实例：

1环境空气中甲烷柱

2.固定污染源废气中甲烷测定

3.天然气中氢，氧，氮，甲烷的测定

4.工业氢中氧，氩，氮的分离

5.变压器油溶解气中氢，氧，氮，一氧化碳，甲烷的测定
岛津GC-7C，GC-14C,gc-2010，GC-2014，GC-2018，GC-2030

Molecular sieves, 5 Å
Molecular sieves, 5 Å
Molecular formula: Ca/nNa12-2n [(AlO2) 12 (SiO2) 12] · xH2O
The pore size of 5A molecular sieve is about 5 angstroms. The effective aperture is 0.5-0.57nm. It is stimulating. Dissolve in strong acids or bases and decompose, insoluble in water and organic solvents. Has hygroscopicity. Selective adsorbent. Catalyst or catalyst support. Used for the separation of n-alkanes and isomers, separation of oxygen and nitrogen, desulfurization of petroleum and petroleum gas, drying and purification of gases and liquids.
Application example:
Methane column in ambient air
2. Determination of methane in exhaust gas from fixed pollution sources
3. Determination of hydrogen, oxygen, nitrogen, and methane in natural gas
4. Separation of oxygen, argon, and nitrogen in industrial hydrogen
5. Determination of Hydrogen, Oxygen, Nitrogen, Carbon Monoxide, and Methane in Dissolved Gas of Transformer Oil
Shimadzu GC-7C, GC-14C,gc-2010，GC-2014，GC-2018，GC-2030