71650
磷酸钠 二元 十二水合物
puriss. p.a., crystallized, ≥99.0% (T)
别名:
磷酸氢二钠, 磷酸氢二钠 十二水合物
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关于此项目
线性分子式:
Na2HPO4 · 12H2O
化学文摘社编号:
分子量:
358.14
EC 号:
MDL编号:
UNSPSC代码:
12161700
PubChem化学物质编号:
NACRES:
NA.21
等级
puriss. p.a.
质量水平
方案
≥99.0% (T)
表单
crystals
质量
crystallized
pH值（酸碱度）
9.0-9.3 (25 °C, 50 mg/mL in H2O)
溶解性
water: soluble 35.8 g/L at 20 °C
痕量阴离子
chloride (Cl-): ≤5 mg/kg
fluoride (F-): ≤5 mg/kg
sulfate (SO42-): ≤50 mg/kg
痕量阳离子
As: ≤0.5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
SMILES字符串
O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O
InChI
1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2
InChI key
DGLRDKLJZLEJCY-UHFFFAOYSA-L
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一般描述
磷酸钠是无色结晶钠盐。它被广泛用作分子生物学、生物化学和色谱研究的缓冲液。它以三种形式存在：一元（NaH2PO4）、二元（Na2HPO4）和三元（Na3PO4）。中性磷酸钠缓冲溶液通常由不同比例的一元和二元形式的磷酸钠制备而成。
应用
磷酸氢二钠十二水合物可用于制备 0.1M 磷酸盐缓冲液（pH 7.4）。
储存分类代码
13 - Non Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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