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
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12161700
EC Number:
231-448-7
MDL number:
Assay:
≥99.0% (T)
Form:
crystals
Solubility:
water: soluble 35.8 g/L at 20 °C
产品名称
磷酸钠 二元 十二水合物, puriss. p.a., crystallized, ≥99.0% (T)
InChI key
DGLRDKLJZLEJCY-UHFFFAOYSA-L
InChI
1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2
SMILES string
O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O
grade
puriss. p.a.
assay
≥99.0% (T)
form
crystals
quality
crystallized
pH
9.0-9.3 (25 °C, 50 mg/mL in H2O)
solubility
water: soluble 35.8 g/L at 20 °C
anion traces
chloride (Cl-): ≤5 mg/kg
fluoride (F-): ≤5 mg/kg
sulfate (SO42-): ≤50 mg/kg
cation traces
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
Quality Level
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Application
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）。
General description
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。
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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