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Sodium benzoate

Cas:
532-32-1
Molecular Structure:
MDL:
--MFCD00012463
Molecular Formula:
C7H5NaO2; C6H5COONa
Molecular Weight:
144.10
Alias:
安息香酸钠,苯甲酸钠盐 Benzoic acid sodium salt
Product order:
Name Specifications Packing Price Delivery
Sodium benzoate 药用级 500g RMB 93.5 Consulting service
Sodium benzoate 分析标准品 250mg RMB 528 Consulting service
Sodium benzoate ACS 500g RMB 93.5 Consulting service
Sodium benzoate AR 500g RMB 63.8 Consulting service
Character:
白色颗粒或结晶性粉末。易燃,低毒。无臭,味微甜而有甜涩味。有能溶于水,稍溶于醇,1g溶于1.8ml水、1.4ml沸水、约75ml乙醇、50ml混合液(47.5ml乙醇和3.7ml水)。水溶液对石蕊呈微碱性,pH约为8。半数致死量(大鼠,经口)4.07mg/kg。
熔点:300℃
Quality Standard:
   
   Q/(HG)SJ 026-91
项目Item                                 分析纯    化学纯
                                          (AR)     (CP)
含量(C6H5COONa)Assay,%                   ≥99.5    99.0
干燥失重Dring loss,%                     ≤0.3      0.5
游离酸(以CH5COOH)Free acid,%             ≤0.1      0.25
游离碱(以Na2CO3) Free alkali             ≤0.1      0.1
硫酸盐(SO4)Sulfate ,%                    ≤0.01     0.01
氯化物(Cl)Chloride,%                     ≤0.01     0.02
砷(As)Arsenic,%                          ≤0.0002   0.0004
重金属(以Pb计)Heavy metals,%             ≤0.001    0.004


品级Grade                                药用级                              
                                    (符合Ph. Eur., BP,USP, FCC, E211 )
含量assay                                99.0-100.5% (calc. to the dried substance)
总杂质total impurities
酸度或碱度acidity or alkalinity,         complies
可氧化杂质oxidizable impurities,         complies
多聚核酸polynuclear acid,                complies
溶剂残渣residual solvents,               complies
重金属heavy metals (as Pb)               ≤0.001%  
含卤化合物halogenated compounds (as Cl)  ≤0.03%  
干燥损失loss on drying                   ≤1% , 105 °C
氯chloride (Cl-):                        ≤100 ppm
硫酸盐sulfate (SO42-):                   ≤100 ppm
砷As:                                    ≤2  ppm
铜Cu:                                    ≤10  ppm
汞Hg:                                    ≤1  ppm
铅Pb:                                    ≤2  ppm
锌Zn:                                    ≤10  ppm
溶解性试验suitability for appearance of solution complies

Storage:
密封保存。
用途  用作血清胆红素试验的助溶剂、食品添加剂(防腐剂)、医药工业的杀菌剂、染料工业的媒染剂、塑料工业的增塑剂,也用作香料等有机合成的中间体。
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