磷酸二氢钠二水物

中文名称： 磷酸二氢钠二水物

其他中文名称： 磷酸一钠二水物；一盐基磷酸钠二水物；酸性磷酸钠

英文名称： Sodium phosphate monobasic dihydrate

其他英文名称： Sodium dihydrogen phosphate dihydrate

产品规格： AR，99%

包装：500克

CAS号：13472-35-0

NaH2PO4·2H2O=156.01

磷酸二氢钠二水物级别：AR

含量：≥99.0%

pH（50g/L，25℃）：4.2～4.6  

澄清度试验：合格

氨沉淀物：≤0.01%  

磷酸二氢钠二水物铵：≤0.002%  

钾：≤0.02%  

硫酸盐：≤0.005%  

氯化物：≤0.005%

砷：≤0.0002%

水不溶物：≤0.01%  

硝酸盐：≤0.001%

铁：≤0.001%  

重金属：≤0.001%  

性状：无色结晶或结晶性粉末。无气味。 热至100℃失去全部结晶水，灼热变成偏磷酸钠。易溶于水，几乎不溶于乙醇，其水溶液呈酸性。0.1mol/L水溶液在25℃时的pH为 4.5。相对密度 1.915。熔点 60℃。  

用途：生化研究。缓冲剂，软水剂，制造六偏磷酸钠和焦磷酸钠，测定镁、单倍体育种中配制改良怀特培养基  

保存：RT

包装形式：瓶装或盒装

试剂取用：严格按磷酸二氢钠二水物说明书操作，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。

公司授权代理的试剂品牌有Sigma-Aldrich、Amresco、AmershamServa、AppliChem、Nacalai Tesque、Biomiga、罗氏、Merck、Spectrum、BioAssay Systems、Jaica、Scharlab等品牌试剂。

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