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60220

Sigma-Aldrich

磷酸钾 一元

buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5%

同義詞:

prim.-磷酸钾, 磷酸二氢钾

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About This Item

線性公式:
KH2PO4
CAS號碼:
分子量::
136.09
EC號碼:
MDL號碼:
分類程式碼代碼:
12352300
PubChem物質ID:
NACRES:
NA.21

等級

ACS reagent
anhydrous
puriss. p.a.

品質等級

agency

reag. ISO
reag. Ph. Eur.

化驗

99.5-100.5%

形狀

crystalline

雜質

≤0.001% total nitrogen (N)

損耗

≤0.2% loss on drying, 105 °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

water: 0.5 g/10 mL, clear, colorless to light yellow

密度

2.338 g/mL at 25 °C (lit.)

負離子痕跡

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤30 mg/kg

正離子痕跡

As: ≤0.5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤15 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤0.001% (by ICP)

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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相關類別

一般說明

磷酸二氢钾广泛用于配制缓冲液,以制备生物样本和研究生物相互作用。

應用

磷酸二氢钾已用于:
  • 制备鲁米诺工作液,研究化学发光系统鲁米诺-H2O2的助氧化剂活性
  • 配制磷酸缓冲液(PBS)培养胚胎干细胞(ESC)并生成胚状体
  • 溶于PBS制备聚二甲基硅氧烷(PDMS)基底

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


分析證明 (COA)

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Journal of colloid and interface science, 552, 247-257 (2019-05-28)
Many materials used in the medical settings such as catheters and contact lenses as well as most biological tissues are not purely elastic, but rather viscoelastic. While substrate elasticity has been investigated for its influence on bacterial adhesion, the impact
Xinyan Wu et al.
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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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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This application illustrate how Rutin can be determined in skin cream samples using a monolithic Chromolith® HighResolution RP-18 endcapped column with UV detection.

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