一、化学名：苯甲酸钠
　　二、分子式：c7h5nao2
　　三、分子量：144.11
　　四、cas：532-32-1
　　五、性能：白色颗粒或结晶性粉末。无臭或略带安息香气味。在空气中稳定。易溶于水(53.0g/100ml,25℃)。溶于乙醇(1.4g/100ml).水溶液的ph值为8。
　　六、用途：防腐剂;抗微生物剂。
　　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
specification
gb1902-2005
含量（以干基计）,％  ≥
content(as dry basis) ％
99.0~100.5
1:10水溶液色度/（铂-钴色号）, ≤
chroma of aqueous solution (1:10) / (platinum-cobalt color) ≤
20
溶液的澄清度试验
test of the solution clarity
通过试验
易氧化物试验
test of oxidizable substances
通过试验
酸碱度
ph value
通过试验
重金属（以pb计）,％         ≤
heavy metals(as pb) ≤％
0.001
砷（as）,％                  ≤
arsenic（as as）≤％
0.0002
硫酸盐（以so4计）,％           ≤
sulphate (as so4 ) ≤％
0.1
氯化物（以cl计）, ％         ≤
chloride (as cl) ≤％
0.03
邻苯二甲酸,
phthalic acid
通过试验
干燥减量,％                  ≤
loss on drying ≤％
1.5
1、chemical name: sodium benzoate
　　2、molecular formula : c7h5na o2
　　3、molecular weight: 144.11
　　4、cas: 532-32-1
　　5、character: white crystalline granule or powder; odorless or with little benzoin smell. stable in air. highly soluble in water (53.0g/100ml,25℃). soluble in ethanol (1.4g/100ml). the ph value of aqueous solution is 8.
　　6、usage: it is used as preservatives, and antimicrobial.
　　7、packing: it is packed with polythene bag as the inner layer, and polywoven bag as the outer layer. the net weight of each bag is 25kg.
　　8、storage and transport: it should be stored in a dry, clean, and ventilative warehouse, kept away from water and moisture during transport, unload with care so as to avoid damaging the bags. be cautious to keep away from moisture and hot.

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