一、化学名：硫酸钠
二、分子式：na2so4；na2so4·10h2o
三、分子量：无水：142.04；十水：322.24
四、cas：无水：7757-82-6；十水：7727-73-3
五、性状：白色单斜晶系结晶或粉末，无臭。有苦咸味，相对密度2.68，熔点884℃，溶于水，水溶液呈中性或弱碱性，溶于甘油，不溶于乙醇。暴露于空气中易吸湿成为含水硫酸钠。高纯度、颗粒细的无水硫酸钠称为元明粉。
六、用途：主要用于制造水玻璃、玻璃、瓷釉、纸浆、制冷混合剂、洗涤剂、干燥剂、染料稀释剂、分析化学试剂、医药品、饲料等。
七、包装：内衬聚乙烯塑料袋，外套复合塑料编织袋包装，每袋净重25kg。
八、贮存与运输：本品应贮存在干燥通风清洁的库房中，装载运输时要轻装轻放，防止包装破损，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。
| 质 量 指 标 | specifications | gb29209-2012 | fccvii | ||
| 含量( na2so4以干基计），w/% | content (na2so4, on dry basis),w/% | 99.0-100.5 | 99.0-100.5 | ||
| 铅（pb），mg/kg ≤ | lead(pb),mg/kg ≤ | 2 | 2 | ||
| 硒（se），mg/kg ≤ | selenium(se),mg/kg ≤ | 30 | 30 | ||
| 砷（as），mg/kg ≤ | arsenic(as),mg/kg ≤ | 3 | ——— | ||
| 干燥减量，w/% | 无水 ≤ | loss on drying,w/% | anhydrous ≤ | 1.0 | 1.0 |
| 十水 | decahydrate | 51.0-57.0 | 51.0-57.0 | ||
1、chemical name: sodium sulfate
2、molecular formula: na2so4 , na2so4·10h2o
3、molecular weight: anhydrous: 142.04 ; decahydrate:322.24
4、cas: anhydrous:7757-82-6 ; decahydrate:7727-73-3
5、character: it’s white monoclinic crystal or crystalline powder, odorless. it tastes bitter and salty. relative density is 2.68. melting point is 884℃. it’s soluble in water and glycerin, insoluble in ethanol. aqueous solution is alkaline. when exposed to air, it’ll easily absorb moisture and turn into aqueous sodium sulfate. fine sodium sulfate decahydrate with high purity is called glauber salt.
6、usage: it is mainly used to make water glass, glass, enamel, pulp, refrigeration mixture, detergent, desiccant, dye diluent, analytical chemical reagent, medicine, feed, etc.
7、packing: it is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. the net weight of each bag is 25kg.
8、storage and transport: it should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. furthermore, it must be stored separately from poisonous substances.