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Merck
CN

71636

Sigma-Aldrich

磷酸钠 二元

BioUltra, for molecular biology, ≥99.5% (T)

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别名:
磷酸二钠, 磷酸二钠, 磷酸氢二钠, 磷酸氢钠
线性分子式:
Na2HPO4
CAS号:
分子量:
141.96
EC 号:
MDL编号:
UNSPSC代码:
12161700
eCl@ss:
38070211
PubChem化学物质编号:
NACRES:
NA.25

等级

for molecular biology

质量水平

产品线

BioUltra

检测方案

≥99.5% (T)

形式

coarse powder
fine crystals
powder

杂质

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected
≤0.001% total nitrogen (N)

缺失

≤0.1% loss on drying, 110 °C

pH值(酸碱度)

8.8-9.4 (25 °C, 0.5 M in H2O)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

溶解性

H2O: 0.5 M at 20 °C, clear, colorless

痕量阴离子

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

痕量阳离子

Al: ≤5 mg/kg
As: ≤0.2 mg/kg
Ba: ≤5 mg/kg
Bi: ≤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
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤10 mg/kg
Zn: ≤5 mg/kg

λ

0.5 M in H2O

紫外吸收

λ: 260 nm Amax: ≤0.025
λ: 280 nm Amax: ≤0.020

SMILES字符串

[Na+].[Na+].[H]OP([O-])([O-])=O

InChI

1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

InChI key

BNIILDVGGAEEIG-UHFFFAOYSA-L

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应用

磷酸氢二钠可用于:
  • 作为磷酸盐缓冲液成分
  • 制备MgCl2 杂交缓冲液
  • 作为 SSPE 溶液成分,制备小分子 RNA 杂交缓冲液

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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