硫酸铝钾 ALUMINIUM POTASSIUM SULFATE
一、化学名：硫酸铝钾
二、分子式：AlK(SO4)2·12H2O
三、分子量：474.39
四、CAS：7784-24-9
五、性能：无色透明正八面体等轴晶系结晶，或白色结晶性粉末。无臭。略有甜味和收敛涩味。在大气中可因风化而变成不透明。加热至200℃以上因失去结晶水而成为白色粉末状烧明矾。相对密度1.757，熔点92.5℃。溶于水，1%水溶液PH值为4.2，在水中水解成氢氧化铝胶状沉淀。几乎不溶于乙醇，在甘油中可缓慢溶解。
六、用途：膨松剂，缓冲剂，中和剂，固化剂。
七、包装：内衬聚乙烯塑料袋，外套塑料编织袋，每袋25Kg。
八、贮存与运输：应贮在干燥，通风清洁的库房中，轻装轻放，防止受潮、受热，运输过程中防止雨淋受潮，应与有毒物品隔离堆放。
质量指标 | Specifications | GB1895-2004 |
硫酸铝钾（AlK(SO4)2.12H2O）以干基计≥% | Content(AlK(SO4)2.12H2O）on dry basis | 99.2 |
重金属(以Pb计）w/% ≤ | Heavy Metals(As Pb) | 0.002 |
氟(F),w/% ≤ | Fluoride | 0.003 |
铅（Pb）,w/% ≤ | Lead | 0.001 |
水不溶物,w/% ≤ | Insoluble in Water | 0.2 |
水分,w/% ≤ | Moisture | 1.0 |
砷（As）,w/% ≤ | Arsenic | 0.0002 |
铵盐 | Ammonium Salt | 符合实验 |
1、Chemical Name:Aluminium potassium Sulfate
2、Molecular Formula :AlK(SO4)2.12H2O
3、Molecular Weight:474.39
4、CAS:7784-24-9
5、Character:It as large, transparent crystals or crystalline fragments, or as a white crystalline powder. Its solutions are acid to litmus. It can be transparent after weathered in air. Relative density is 1.757,melting point is 92.5℃,the PH value is 4.2 in 1% water aqueous solution. Losing all water and be burntalum which is white powder when the temperature higher than 200℃,It is insoluble in alcohol, but is freely soluble in glycerin.
6、Usage:Buffer,neutralizing agent,firming agent.
7、Packing:It is packed with plastic bag as inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
8、Storage and Transport:It should be stored in a dry and ventilating warehouse, kept away form water and moisture during transport, unloaded with care so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.
'
