蒸汽压
1 mmHg ( 719 °C)
质量水平
等级
technical
检测方案
≥85%
形式
powder
杂质
≤0.002% heavy metals (as Pb)
≤1.0% K2CO3
pH值（酸碱度）
~13.5 (25 °C, 5.6 g/L)
mp
361 °C (lit.)
痕量阴离子
chloride (Cl-): ≤1000 mg/kg
sulfate (SO42-): ≤50 mg/kg
痕量阳离子
Fe: ≤20 mg/kg
SMILES字符串
[OH-].[K+]
InChI
1S/K.H2O/h;1H2/q+1;/p-1
InChI key
KWYUFKZDYYNOTN-UHFFFAOYSA-M
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一般描述
氢氧化钾是一种无机化合物，化学式为 KOH。它是一种强碱，通常被称为苛性钾。苛性钾主要用于制造钾盐、酸碱滴定和有机合成。此外，KOH 还可用作一些燃料电池和碱性电池的电解质。氢氧化钾容易与酸反应。它用于各种反应，如亲核反应、加成反应和碱性水解反应。此外，它还被用作醛型反应的催化剂。
应用
氢氧化钾可用于：
- 制备经 KOH 处理的粉状活性炭，作为化学气相沉积（CVD）法合成碳纳米管（CNT）的催化剂。
- 作为尿素分子内 N-芳基化中的碱，以形成苯并咪唑-2-酮。
- 作为催化剂，通过一锅、三组分（Meldrum 酸、芳基醛和 5,7-二羟基苯并吡酮衍生物）反应合成烷内酯类化合物（10-芳基取代-9,10-二氢吡喃[2,3-h]苯并吡酮-8-酮）。
警示用语：
Danger
危险声明
危险分类
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
危险化学品
Yuewang Huang et al.
Optics express, 23(5), 6780-6786 (2015-04-04)
We demonstrate a novel technique to fabricate sub-micron silicon nitride waveguides using conventional contact lithography with MEMS-grade photomasks. Potassium hydroxide anisotropic etching of silicon facilitates line reduction and roughness smoothing and is key to the technique. The fabricated waveguides is
Rokas Drevinskas et al.
Optics express, 23(2), 1428-1437 (2015-04-04)
Surface texturing is demonstrated by the combination of wet etching and ultrafast laser nanostructuring of silica glass. Using potassium hydroxide (KOH) at room temperature as an etchant of laser modified glass, we show the polarization dependent linear increase in retardance
Aldol condensation in gaseous phase by zeolite catalysts.
Wierzchowski PT and Zatorski LW.
Catalysis Letters, 9(5-6), 411-414 (1991)
Ji-Tai Li et al.
Ultrasonics sonochemistry, 9(5), 237-239 (2002-10-10)
Claisen-Schmidt condensation of acetophenone with aromatic aldehydes catalyzed by pulverized KOH and KF-Al2O3 results chalcones in 52-97% and 83-98% yields respectively in alcoholic solvent under ultrasound irradiation.
A packed bed membrane reactor for production of biodiesel using activated carbon supported catalyst.
Saeid Baroutian et al.
Bioresource technology, 102(2), 1095-1102 (2010-10-05)
In this study, a novel continuous reactor has been developed to produce high quality methyl esters (biodiesel) from palm oil. A microporous TiO2/Al2O3 membrane was packed with potassium hydroxide catalyst supported on palm shell activated carbon. The central composite design
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