氢氧化钾，Potassium hydroxide；BioXtra, ≥85% KOH basis

图片 氢氧化钾，Potassium hydroxide；BioXtra, ≥85% KOH basis
别名: 苛性钾 线性分子式: KOH CAS号: 1310-58-3 分子量: 56.11 EC 号: 215-181-3 MDL编号: MFCD00003553 eCl@ss: 38100303 PubChem化学物质编号: 329820239 NACRES: NA.21
制造商品牌: 西格玛 Sigma-Aldrich
货号（SKU）: P5958
CAS号: 1310-58-3
MDL号: MFCD00003553
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说明

一般描述

Potassium hydroxide is an inorganic compound commonly known as caustic potash. It is a strong alkali, readily reacts with acids. It can be used in various reactions such as nucleophilic substitution, hydrolysis, and addition reactions. Sometimes it can also be used as a catalyst for aldol-type reactions.
 

应用

Potassium hydroxide can be used to adjust the pH of the solution.
It can also be used:
  • As a catalyst in the alkynylation of heteroaromatic N-oxides to synthesize corresponding C2-alkynylheterocycles.
  • As a superbase medium with dimethyl sulfoxide (KOH/DMSO medium) for the synthesis of cross-coupling products under transition metal-free conditions from reactions between aryl halides and various sulfur, oxygen and nitrogen-based nucleophiles.
  • In the synthesis and thermodynamic study of Na-based zeolites.

 

属性

蒸汽压

1 mmHg ( 719 °C)

质量水平

200

产品线

BioXtra

测定

≥85% KOH basis

形式

pellets

杂质

≤0.0005% Phosphorus (P)
≤0.1% Insoluble matter
≤2.0% K2CO3

pH值（酸碱度）

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

溶解性

H2O: 1 M, clear, colorless

痕量阴离子

chloride (Cl-): ≤0.01%
sulfate (SO42-): ≤0.003%

痕量阳离子

Al: ≤0.0005%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Na: ≤0.05%
Pb: ≤0.001%
Zn: ≤0.0005%

SMILES string

[OH-].[K+]

InChI

1S/K.H2O/h;1H2/q+1;/p-1

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

 

安全信息

象形图

CorrosionExclamation mark
GHS05,GHS07

警示用语：

Danger

危险声明

H290 - H302 - H314

危险分类

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

储存分类代码

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 50 | 欧洲Eur. ≥ 12 | 東京Tokyo ≥ 20 | 香港与北京 ≥ 50
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