nh4cl

1

NH4Cl / KCl is a good additive with low residue and for the production of high purity AlN .

NH4Cl/KCl还是一种低残留的添加剂，可以用来制备高纯度的AIN。
2

Adding inorganic nitrogen source such as NH4Cl 、( NH4 ) 2SO4 to culture medium , increase glucose concentration and Carbon Catabolite Repression and have no benefit to riboflavin production .

NH4Cl、（NH4）2SO4等无机氮源用作2.5%酵母粉的补充氮源，都能够促进发酵液中葡萄糖浓度增高，引起碳分解代谢阻遏效应，不利于核黄素合成。
3

Ammonium chlorochromate ( NH4Cl · CrO3 ) can selectively oxidize 14 kinds of benzyl ethers to corresponding benzoates in high yields in the mixed solvent of DMF and HAc . The oxidation condition is mild , the product is easily separated and the starting material can be recovered .

在DMF和HAc的混合溶剂中，氯化铵三氧化铬可将14种苄醚较高产率地选择性氧化为相应的苯甲酸酯，反应条件温和，产物易分离，原料可回收。