磷酸氢二钠

中文名称： 磷酸氢二钠

其他中文名称： 磷酸二钠；二盐基磷酸钠；十二水合磷酸氢二钠；十二水磷酸二钠；十二水磷酸氢二钠；双盐基磷酸钠

英文名称： Sodium phosphate dibasic dodecahydrate

其他英文名称： sec-Sodium phosphate；di-Sodium hydrogen phosphate dodecahydrate；Disodium hydrogen phosphate dodecahydra

产品规格： AR，99%

磷酸氢二钠包装：500克

CAS号：10039-32-4

Na2HPO4·12H2O=358.14

级别：AR

含量：≥99.0%

pH（50g/L，25℃）：9.1～9.4  

磷酸氢二钠澄清度试验：合格

钾：≤0.01%  

硫酸盐：≤0.005%

氯化物：≤0.001%

砷：≤0.0005%

水不溶物：≤0.005%

总氮量：≤0.002%

铁：≤0.0005%  

重金属：≤0.0005%  

性状：无色半透明结晶或颗粒粉末。溶于水，其水溶液呈弱碱性，1%水溶液的pH值为8.8～9.2，不溶于醇。35.1℃时熔融并失去5个结晶水。在空气中易风化，常温时放置于空气中失去约5个结晶水而形成七水物，加热至100℃时失去全部结晶水而成无水物，250℃时分解变成焦磷酸钠。在34℃以下小心干燥，可得粉末的二水磷酸氢二钠。水中溶解度:218 g/L (20°C)。密度：1.52；熔点：35℃。  

用途：生化研究。分析用作缓冲剂，制备钩端螺旋体培养基，测定钾  

保存：RT，避光

包装形式：瓶装或盒装

试剂取用：严格按磷酸氢二钠说明书操作，勿食、勿接触皮肤、眼、口等人体重要部位及器官

我们提供的试剂产品品质优良，都是通过严格的检测体系认证

保存注意事项：低温、避光、干燥阴凉处封闭贮存，严禁与有毒、有害物品混放、混运。本品为非危险品，可按一般化学品运输，轻搬动轻放，防止日晒、雨淋。

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