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Merck
CN

795496

Sigma-Aldrich

磷酸钾二元 二元

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥98%

别名:

磷酸二钾, 磷酸氢二钾

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About This Item

线性分子式:
K2HPO4
CAS号:
分子量:
174.18
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent
anhydrous

质量水平

Agency

suitable for SM 5210

产品线

Redi-Dri

检测方案

≥98%

形式

powder

质量

free-flowing

杂质

≤0.001% Nitrogen compounds (as N)
≤0.01% Insoluble matter

缺失

≤1.0% loss on drying, 105°C

pH值(酸碱度)

8.5-9.6 (25 °C, 5% in solution)

pKa (25 °C)

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

痕量阴离子

chloride (Cl-): ≤0.003%
sulfate (SO42-): ≤0.005%

痕量阳离子

Fe: ≤0.001%
Na: ≤0.05%
heavy metals: ≤5 ppm (by ICP-OES)

SMILES字符串

[K+].[K+].OP([O-])([O-])=O

InChI

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

InChI key

ZPWVASYFFYYZEW-UHFFFAOYSA-L

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一般描述

磷酸二氢钾是一种有用的生物缓冲液,其 pH 值在 8.5-9.6 之间。磷酸钾以各种形式存在:一价(KH2PO4)、二价(KH2PO4)和三价(K3PO4)。磷酸钾缓冲液广泛应用于平衡透析、高效液相层析(HPLC)和亲和毛细管电泳研究等。

应用

磷酸二氢钾已可用于制备MMG(麦芽糖、甲基绿)培养基,磷酸盐缓冲盐和低渗溶液。

特点和优势

  • 提高效率——免除需要松散硬化粉末的时间和精力
  • 更加安全——避免使用工具大力敲碎团块的风险
  • 更加经济——制备和溶剂化速度更快,提高效率并节约成本
  • 质量保证——经过专业检测的出色品质,无抗结剂添加
  • 灵活的用量选择——有从研究到放大级别的用量规格可供选择

法律信息

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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Mohammad Karimi et al.
Materials science & engineering. C, Materials for biological applications, 98, 227-240 (2019-03-01)
The aim of this study was to find an optimum dose of the synthetic amorphous calcium phosphate (ACP) nanoparticles to be incorporated in resin-modified glass ionomer cements (RMGICs) for triggering the release of PO43-/Ca2+, alkaline phosphatase (ALP) activity and osteogenic

商品

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

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