一、化学名：醋酸钠/乙酸钠
二、分子式：c2h3nao2 ；c2h3nao2·3h2o
三、分子量：无水物：82.03；三水物：136.08
四、cas: 无水物：127-09-3；三水物：6131-90-4
五、性状：结晶品（三水）为无色透明结晶或白色结晶粉末，无水物为白色结晶性粗粉或块状，无臭，稍有醋样气味。结晶品相对密度1.45，在温暖干燥的空气中易风化，1g约溶于0.8ml水和19ml乙醇。无水品相对密度1.528，熔点324℃，吸湿性很强，1g约溶于2ml水中。
六、用途：缓冲剂、调味剂、ph值调节剂、增香剂、呈味剂等。
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 | specification | gb 30603—2014 | fcc vii | ||
| 含量（以干基计）， w/% | content(as dry basis), w/% | ≥98.5 | 99.0-101.0 | ||
| 酸度和碱度 | acidity and alkalinity | 通过试验 | ———— | ||
| 铅（pb），mg/kg ≤ | lead (as pb), mg/kg ≤ | 2 | 2 | ||
| 碱度，w/% ≤ | alkalinity, w/% ≤ | anhydrous | ———— | 0.2 | |
| trihydrate | ———— | 0.05 | |||
| 干燥失重，w/% | 无水品 ≤ | loss on drying, w/% | anhydrous ≤ | 2.0 | 1.0 |
| 结晶品 | trihydrate | 36.0-42.0 | 36.0-41.0 | ||
| 钾化合物 | potassium compound | 通过试验 | pass test | ||
1、chemical name: sodium acetate
2、molecular formula : c2h3nao2 ,c2h3nao2·3h2o
3、molecular weight: anhydrous 82.03,trihydrate 136.08
4、cas: anhydrous：127-09-3,trihydrate：6131-90-4
5、character: trihydrate: it is colorless transparent crystal or white crystalline powder. relative density is 1.45. in warm and dry air, it’ll easily get weathered. 1g sample could be dissolved in about 0.8ml water or 19ml ethanol. anhydrous: it is white crystalline coarse powder or block. it’s odorless, tastes a bit of vinegary. relative density is 1.528. melting point is 324℃. capacity of moisture absorption is strong. 1g sample could be dissolved in 2ml water.
6、usage: it is used as buffering agent, seasoning reagent, ph regulator, flavor agent, 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.
