所有图片(3)
别名:
sec-磷酸钠, 磷酸二钠, 磷酸氢二钠 二水合物
线性分子式:
Na2HPO4 · 2H2O
CAS号:
分子量:
177.99
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.21
Agency
USP/NF
reag. Ph. Eur.
质量水平
等级
puriss. p.a.
检测方案
98.5-101.0% (calc. to the dried substance)
形式
crystals
杂质
reducing impurities, complies
≤0.0005% heavy metals (as Pb)
≤0.001% total nitrogen (N)
≤0.5% NaH2PO4 (calc. to dried subst.)
缺失
19.5-21.0% loss on drying, 130 °C
pH值（酸碱度）
9.0-9.2 (20 °C, 5%)
痕量阴离子
chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg
痕量阳离子
As: ≤0.5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
适用性
in accordance for appearance of solution
SMILES字符串
O.O.[Na+].[Na+].OP([O-])([O-])=O
InChI
1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2
InChI key
KDQPSPMLNJTZAL-UHFFFAOYSA-L
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一般描述
二水合磷酸钠是一种高吸湿性和水溶性化合物。它可用于软水剂、清洁剂，也可用作特殊配方的缓冲液。
应用
使用二水合磷酸钠可用于：
- 以五水硝酸铋和氯化钾为原料，通过微波辅助水热法制备 BiOCl/BiPO4 复合材料。
- 制备磷酸钠缓冲液。
- 作为磷源用于合成 Mg 掺杂羟基磷灰石纳米板。
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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