484016
Potassium hydroxide
reagent grade, 90%, flakes
Synonym(s):
Caustic potash
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About This Item
Linear Formula:
KOH
CAS Number:
Molecular Weight:
56.11
PubChem Substance ID:
eCl@ss:
38100303
UNSPSC Code:
12352106
NACRES:
NA.21
EC Number:
215-181-3
MDL number:
Assay:
90%
Grade:
reagent grade
Form:
flakes
Solubility:
water: soluble 1120 g/L
InChI key
KWYUFKZDYYNOTN-UHFFFAOYSA-M
InChI
1S/K.H2O/h;1H2/q+1;/p-1
SMILES string
[OH-].[K+]
grade
reagent grade
agency
suitable for EPA 1613, suitable for SM 5210
vapor pressure
1 mmHg ( 719 °C)
assay
90%
form
flakes
pH
~13.5 (25 °C, 5.6 g/L)
mp
361 °C (lit.)
solubility
water: soluble 1120 g/L
Quality Level
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General description
Potassium hydroxide (KOH) is a hygroscopic, water soluble base synthesized by the electrolysis of potassium chloride solution. It is the raw material for the synthesis of many potassium compounds. KOH reacts with CO2 to form potassium carbonate. This property can be utilized to absorb CO2. It participates as catalyst in aldol condensation reactions. KOH anisotropic etching of silicon is used for the fabrication of sub-micron silicon nitride waveguides using conventional contact lithography. Pulverized KOH may be used for the preparation of chalcones.
Application
Potassium hydroxide (KOH) was used in the following processes:
- Quantification of glutathione (GSH) and glutathione disulfide (GSSG) in biological samples by HPLC.
- Preparation of buffer for use in the Investigation of seed fatty acid (FA) composition, protein, oil and sugar content.
- Stable isotopic profiling study of Caenorhabditis elegans.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Storage Class
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Seed Storage Reserve Analysis
van Erp H, et al.
Bio-protocol, 4(20), e1263-e1263 (2014)
Marni J Falk et al.
Journal of visualized experiments : JoVE, (48)(48), doi:10-doi:10 (2011-03-16)
Stable isotopic profiling has long permitted sensitive investigations of the metabolic consequences of genetic mutations and/or pharmacologic therapies in cellular and mammalian models. Here, we describe detailed methods to perform stable isotopic profiling of intermediary metabolism and metabolic flux in
Eagleson M.
Concise Encyclopedia Chemistry, 888-888 (1994)
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
Khan, R.H. et al.
Synthetic Communications, 27, 2193-2193 (1997)
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