产品名称

英文名称：Molecular sieves, 3Å

同义词

MOLECULARSIEVE、Molecular sieves, 1/8'' pellets (Linde 5A)、Silicic acid, aluminum sodium salt、Sodium aluminum silicate、aluminum;sodium;dioxido(oxo)silane、MOLECULAR SIEVES, 5A、SODIUM ALUMINOSILICATE、sodium alumino-silicate、DTXSID7026021、MOLECULAR SIEVE、sodi、3A分子筛

产品性质

CAS编号：308080-99-1

分子式：KnNa12-n[(AlO2)12(SiO2)12] · xH2O

MDL号：MFCD00147627

PubChem编号：19758701

别名：3A分子筛

英文别名：MOLECULARSIEVE|Molecular sieves, 1/8'' pellets (Linde 5A)|Silicic acid, aluminum sodium salt|Sodium aluminum silicate|aluminum;sodium;dioxido(oxo)silane|MOLECULAR SIEVES, 5A|SODIUM ALUMINOSILICATE|sodium alumino-silicate|DTXSID7026021|MOLECULAR SIEVE|sodi

规格或纯度：≥100目,气相、液相色谱柱专用

英文名称：Molecular sieves, 3Å

储存温度：充氩

运输条件：常规运输

产品介绍：其孔径约为3埃。适用于气体和液体的干燥，烃的脱水。可广泛应用于石油裂解气，乙烯，丙烯及天然气的深度干燥。加入黏合剂后可塑合成条状或球状。一种多水合硅铝酸盐的微孔吸附剂，人工合成泡沸石。有吸湿性。溶于强酸或强碱并分解，不溶于水和有机溶剂。有效孔径0.32nm。有刺激性。Molecular sieves are crystalline metal aluminosilicates having a 3-dimensional interconnecting network of silica and alumina tetrahedra. Natural water of hydration is removed from this network by heating to produce uniform cavities which selectively adsorb molecules of a specific size. The 3A form is made by substituting potassium cations for the inherent sodium ions of the 4A structure, reducing the effective pore size to ~3?, excluding diameter >3?, e.g., ethane. The 4 to 8-mesh type is normally used in gas-phase applications. Molecular sieves are considered a universal drying agent in polar and nonpolar media.

IUPAC Name：aluminum;sodium;dioxido(oxo)silane

INCHI：InChI=1S/Al.Na.2O3Si/c;;2*1-4(2)3/q+3;+1;2*-2

InChi Key：URGAHOPLAPQHLN-UHFFFAOYSA-N

Canonical SMILES：[O-][Si](=O)[O-].[O-][Si](=O)[O-].[Na+].[Al+3]

Isomeric SMILES：[O-][Si](=O)[O-].[O-][Si](=O)[O-].[Na+].[Al+3]

PubChem CID：19758701

溶解性：Insoluble in cold water, hot water, methanol, diethyl ether, n-octanol and acetone.

敏感性：对湿度敏感

产品包装