Merck

P0662

Sigma-Aldrich

磷酸钾 一元

ACS reagent, ≥99.0%

别名:
prim.-磷酸钾, 磷酸二氢钾
线性分子式:
KH2PO4
CAS号:
分子量:
136.09
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent

质量水平

检测方案

≥99.0%

形式

powder or crystals

technique(s)

tissue culture: suitable

杂质

≤0.01% Insoluble matter

缺失

≤0.2% loss on drying, 105°C

pH值(酸碱度)

4.1-4.5 (25 °C, 5%)

pKa (25 °C)

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

bp

>450 °C

mp

252.6 °C (lit.)

密度

2.338 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.003%

痕量阳离子

Fe: ≤0.002%
Na: ≤0.005%
heavy metals: ≤0.001% (by ICP)

SMILES string

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

InChI

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

InChI key

GNSKLFRGEWLPPA-UHFFFAOYSA-M

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此商品
P979160218PHR1330
Potassium phosphate monobasic ACS reagent, ≥99.0%

Sigma-Aldrich

P0662

磷酸钾 一元

Potassium phosphate monobasic for molecular biology, ≥98.0%

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P9791

磷酸钾 一元

Potassium phosphate monobasic BioUltra, for molecular biology, anhydrous, ≥99.5% (T)

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60218

磷酸钾 一元

Monobasic Potassium Phosphate Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1330

磷酸二氢钾

assay

≥99.0%

assay

≥98.0%

assay

≥99.5% (T)

assay

-

form

powder or crystals

form

powder

form

powder or crystals

form

-

impurities

≤0.01% Insoluble matter

impurities

-

impurities

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

impurities

-

pH

4.1-4.5 (25 °C, 5%)

pH

-

pH

4.0-4.5 (25 °C, 1 M in H2O)

pH

-

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

一般描述

磷酸二氢钾(正磷酸一钾)是水溶无机盐。它形成的标准焓是-376.1kcalmol-1它是合成偏磷酸钾的起始物质。

应用

磷酸二氢钾用于制备磷酸缓冲液和磷酸盐缓冲液(PBS)。它还可以用来制备PEG1000(聚乙二醇)/磷酸钾水二相体系(ATPS)。

法律信息

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

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable


Certificates of Analysis (COA)

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Slide 1 of 4

1 of 4

Monobasic potassium phosphate United States Pharmacopeia (USP) Reference Standard

USP

1551139

磷酸二氢钾

Monobasic Potassium Phosphate Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1330

磷酸二氢钾

Potassium Phosphate Monobasic solution reagent grade, 1.0 M in solution

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P8709

磷酸二氢钾 溶液

Potassium phosphate monobasic tested according to Ph. Eur., anhydrous

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60229

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Estimation of Wound Tissue Neutrophil and Macrophage Accumulation by Measuring Myeloperoxidase (MPO) and N-Acetyl-?-D-glucosaminidase (NAG) Activities.
Cassini-Vieira P, et al.
Bio-protocol, 5(22) (2015)
The solubility and reversion of calcium and potassium metaphosphates.
Volkerding CC and Bradfield R.
Soil Science Society of America Journal. Soil Science Society of America, 8(C), 159-166 (1944)
Standard enthalpies of formation of monopotassium and dipotassium orthophosphate.
Luff BB and Reed RB.
Journal of Chemical and Engineering Data, 23(1), 60-62 (1978)
Skin wound healing model-excisional wounding and assessment of lesion area.
Moreira CF, et al.
Bio-protocol, 5(22) (2015)
Jacek Zielonka et al.
Free radical biology & medicine, 46(3), 329-338 (2008-11-26)
Methods for the detection and quantitation of hydroethidine (HE) and its oxidation products by HPLC analysis are described. Synthetic methods for preparation of authentic standards (2-hydroxyethidium and diethidium) are provided. Potential applications of the HPLC methods to chemical and biological

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