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Merck

04243

Sigma-Aldrich

磷酸钾 一元

meets analytical specification of Ph. Eur., NF, E340, anhydrous, 98-100.5% (calc. to the dried substance)

别名:

prim.-磷酸钾, 磷酸二氢钾

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About This Item

线性分子式:
KH2PO4
CAS号:
分子量:
136.09
EC號碼:
MDL號碼:
分類程式碼代碼:
12161700
eCl@ss:
38070209
PubChem物質ID:
NACRES:
NA.25

等級

anhydrous

品質等級

化驗

98-100.5% (calc. to the dried substance)

形狀

crystalline

品質

meets analytical specification of Ph. Eur., NF, E340

雜質

org. volatile impurities, complies (GC)
residual solvents, complies
≤0.001% heavy metals (as Pb)
≤0.04% KMnO4 red. matter (as O)
≤0.2% in water insoluble matters

損耗

≤1% loss on drying, 130 °C

pH值

4.2-4.5 (20 °C, 5%)

pKa (25 °C)

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

mp

252.6 °C (lit.)

溶解度

H2O: soluble 4.5 parts
alcohol: insoluble

密度

2.338 g/mL at 25 °C (lit.)

負離子痕跡

chloride (Cl-): ≤10 mg/kg
fluoride (F-): ≤10 mg/kg
sulfate (SO42-): ≤200 mg/kg

正離子痕跡

As: ≤2 mg/kg
Cd: ≤1 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Na: ≤1000 mg/kg
Pb: ≤4 mg/kg
Zn: ≤20 mg/kg

適合性

complies for appearance of solution

SMILES 字串

[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 密鑰

GNSKLFRGEWLPPA-UHFFFAOYSA-M

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相关类别

應用

以磷酸二氢钾为萃取剂,采用双水相萃取法分离烟草蛋白质。

生化/生理作用

磷酸二氢钾也称为磷酸二氢钾或磷酸二氢钾,是一种作为缓冲剂的可溶性钾盐。它增强了钙和磷在氨基酸加葡萄糖溶液中的溶解度,因此有助于改善胃肠外喂养的低出生体重儿的矿物质平衡。

準備報告

磷酸二氢钾溶于(约) 4.5份水,得到溶液。几乎不溶于乙醇。

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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P Chessex et al.
The Journal of pediatrics, 116(5), 765-772 (1990-05-01)
Because the monobasic potassium phosphate salt (monobasic) improves the solubility of calcium and phosphorus in amino acid plus dextrose solutions, compared with the current mixtures of monobasic plus dibasic salts (dibasic), we tested the bioavailability and clinical effects of monobasic
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Journal of chromatography. A, 989(1), 119-129 (2003-03-19)
Tobacco has long been considered as a host to produce large quantity of high-valued recombinant proteins. However, dealing with large quantities of biomass is a challenge for downstream processing. Aqueous two-phase extraction (ATPE) has been widely used in purifying proteins
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Nature communications, 5, 4961-4961 (2014-09-24)
The PIK3CA gene is frequently mutated in human cancers. Here we carry out a SILAC-based quantitative phosphoproteomic analysis using isogenic knockin cell lines containing 'driver' oncogenic mutations of PIK3CA to dissect the signalling mechanisms responsible for oncogenic phenotypes induced by
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Journal of the American College of Cardiology, 64(19), 2013-2023 (2014-12-03)
Obstructive sleep apnea (OSA) importantly contributes to the occurrence of atrial fibrillation (AF) in humans, but the mechanisms are poorly understood. Experimental research has provided insights into AF promotion by acute OSA episodes. However, patients with OSA usually have frequent nocturnal episodes
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Disease models & mechanisms, 7(6), 635-648 (2014-05-09)
A point mutation in the Drosophila gene that codes for the major adult isoform of adenine nuclear translocase (ANT) represents a model for human diseases that are associated with ANT insufficiency [stress-sensitive B(1) (sesB(1))]. We characterized the organismal, bioenergetic and

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