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CAS No. | 1310-58-3 |
Chemical Name: | Potassium hydroxide |
Synonyms: | KOH;LYE;POTASH;Potassa;Potassio;POTASH LYE;KOH/CH63857;Causicpotash;potassium lye;normanal0,1-N |
CBNumber: | CB3107908 |
Molecular Formula: | HKO |
Formula Weight: | 56.11 |
MOL File: | 1310-58-3.mol |
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Potassium hydroxide Property |
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density : |
1.450 g/mL at 20 °C
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vapor pressure : |
1 mm Hg ( 719 °C)
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refractive index : |
n20/D 1.421
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solubility : |
H2O: 1 M at 20 °C, clear, colorless
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Water Solubility : |
soluble |
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Sensitive : |
Air Sensitive & Hygroscopic |
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Stability:: |
Stable, but very hygroscopic. Dissolves exothermically in water. Incompatible with most metals, strong acids, acid chlorides, organic materials, zinc, aluminium, nitroalkanes, nitrobenzene, chlorine dioxide. Reacts vigorously with a wide variety of other materials. Readily absorbs water and carbon dioxide from the air. |
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Potassium hydroxide Chemical Properties,Usage,Production |
Chemical Properties
white crystals, flakes, sticks or pellets |
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General Description
A white solid. Corrosive to metals and tissue. Used in soap manufacture, bleach, as an electrolyte in alkaline batteries, and as a food additive. |
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Air & Water Reactions
Hydrolysis generates enough heat to ignite adjacent combustible material [Haz. Chem. Data 1966]. Dissolves in water (with liberation of heat, may steam and spatter. Solution is basic (alkaline). Deliquescent |
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Reactivity Profile
POTASSIUM HYDROXIDE absorbs moisture readily forming caustic solution that attacks aluminum and zinc. A piece of potassium hydroxide causes liquid chlorine dioxide to explode [Mellor 2:289. 1946-47]. 1,2-dichloroethylene and potassium hydroxide forms chloroacetylene, which is explosive and spontaneously flammable in air. Potassium hydroxide is highly toxic [Rutledge 1968. p. 134]. A reaction between n-nitrosomethylurea and potassium hydroxide in n-butyl ether resulted in an explosion due to the formation of diazomethane [Schwab 1972]. Potassium persulfate and a little potassium hydroxide and water ignited a polythene (polyethylene) liner of a container by release of heat and oxygen [MCA Case History 1155. 1955]. Using potassium hydroxide to dry impure tetrahydrofuran, which contains peroxides, may be hazardous. Explosions have occurred in the past. Sodium hydroxide behaves in a similar way as potassium hydroxide [NSC Newsletter Chem. Soc. 1967]. A strong base. Forms caustic solution in water. [Merck 11th ed. 1989]. |
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Health Hazard
Causes severe burns of eyes, skin, and mucous membranes. |
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Fire Hazard
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. |
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Potassium hydroxide Suppliers Global( 315)Suppliers |
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POTASH
POTASH CAUSTIC
POTASH LYE
POTASSIUM HYDRATE
POTASSIUM HYDROXIDE STANDARD
POTASSIUM HYDROXIDE
POTASSIUM HYDROXIDE ETHANOLIC
POTASSIUM OXIDE HYDRATE
Alphabetic
META - METH
Mass Spectrometry
Reagents for Protein Sequencing
Proteomics and Protein Expression
Protein Analysis
Protein Sequencing
Stable Isotopes
Solvents and Solutions for Mass Spectrometry
Solvents
Western Blotting
Causicpotash
causticpotashsolutions
Hydroxyde de potassium
hydroxydedepotassium
hydroxydedepotassium(french)
hydroxydedepotassium(solide)
hydroxydedepotassium(solutions)
Kaliumhydroxid
Kaliumhydroxyde
Potassa
Potasse caustique
potassecaustique
potassecaustique(french)
Potassio
potassio(idrossidodi)
Potassium hydroxide (K(OH))
potassium(hydroxydede)
potassium(hydroxydede)(french)
potassiumhydratesolutions
potassiumhydroxide(k(oh))
potassiumhydroxide(non-specificname)
potassiumhydroxide,[containingcorrosiveliquid]
potassiumhydroxide,[drysolid,flake,bead,orgranular]
potassiumhydroxidesolid
potassiumhydroxidesolutions
Vegetable alkali
KALII HYDROXIDUM
KOH
CAUSTIC POTASH
LYE
1310-58-3
Buffers and Reagents
Buffers, Reagents, & Stains
Analytical Standards
BioChemical
Analytical Chromatography Product Catalog
Alphabetical Listings
caustic potash, in aqueous solution
caustic potash, solid
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