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searching for Potassium hydroxide 80 found (538 total)

alternate case: potassium hydroxide

Fatty acid methyl ester (407 words) [view diff] exact match in snippet view article find links to article

the presence of base such as sodium hydroxide, sodium methoxide or potassium hydroxide. One of the reasons for FAME use in biodiesel instead of free fatty
Pycnoporus cinnabarinus (49 words) [view diff] exact match in snippet view article find links to article
common in many areas and is widely distributed throughout the world. The stipe and the pore surface had a positive reaction with potassium hydroxide.
Dehydrohalogenation (575 words) [view diff] exact match in snippet view article find links to article
{Propene}{CH3-CH=CH2}}+ {KCl}+ H2O}}\end{aligned}}} Here ethyl chloride reacts with potassium hydroxide dissolved in ethanol, giving ethylene. Likewise, 1-chloropropane
Potassium ethoxide (226 words) [view diff] exact match in snippet view article find links to article
this compounds strongly basic. It hydrolyzes to yield ethanol and potassium hydroxide. Potassium ethoxide is used as a strong base, similar to sodium and
Potash pit (399 words) [view diff] exact match in snippet view article find links to article
contains water-soluble potassium salts such as potassium carbonate and potassium hydroxide. The potash pit was a basic stone lined ashery in which hardwoods
Atromentic acid (145 words) [view diff] exact match in snippet view article find links to article
neutralized with acid the red atromentic acid crystallises. Concentrated potassium hydroxide breaks up the compound to p-hydroxyphenylacetic acid and oxalic acid
Aluminium battery (464 words) [view diff] exact match in snippet view article find links to article
Produces a high voltage of 1.9 volts. Another variation uses a base (potassium hydroxide) as the anolyte and sulfuric acid as the catholyte. The two parts
Imide (846 words) [view diff] exact match in snippet view article find links to article
metal salts of imides can be prepared by conventional bases such as potassium hydroxide. The conjugate base of phthalimide is potassium phthalimide. These
Cortinarius erythraeus (349 words) [view diff] exact match in snippet view article find links to article
mushroom has no particular taste or smell, and stains red-purple when potassium hydroxide is applied to it. The spore print is rust-brown, and the oval warty
Cortinarius kioloensis (459 words) [view diff] exact match in snippet view article find links to article
The flesh is dark purple to black. All mushroom parts stain red in potassium hydroxide. The thick wide dark blue gills are sinuate. The pale violet stipe
List of medical abbreviations: K (0 words) [view diff] exact match in snippet view article find links to article
keep in view KLS kidney, liver, spleen Km Michaelis constant KOH potassium hydroxide KS Kaposi's sarcoma; Kartagener syndrome KSHV Kaposi's sarcoma-associated
Alkahest (403 words) [view diff] exact match in snippet view article find links to article
Paracelsus' recipe is popular with chemists even today; a bath of potassium hydroxide in ethanol leaves laboratory glassware sparkling clean Philalethes
Beta-alumina solid electrolyte (775 words) [view diff] exact match in snippet view article find links to article
electrolytes used in conventional battery systems such as sulfuric acid and potassium hydroxide. The crystal structure of the Na-Al2O3 provides an essential rigid
Silver-cadmium battery (470 words) [view diff] exact match in snippet view article find links to article
electrode is formed of a pasted grid. Electrolytes are solutions of potassium hydroxide in water. Cells are provide with vent caps to prevent reaction of
Propionic acid (2,211 words) [view diff] exact match in snippet view article find links to article
Rohrzucker, Gummi, Stärkmehl und Mannit" (On the effect of molten potassium hydroxide on raw sugar, rubber, starch powder, and mannitol), Annalen der Chemie
Electromotive force (5,534 words) [view diff] exact match in snippet view article find links to article
1.2 V Cadmium Water, potassium hydroxide NiO(OH) nickel-cadmium 1.2 V Mischmetal (hydrogen absorbing) Water, potassium hydroxide Nickel nickel–metal hydride
Diacetylene (255 words) [view diff] exact match in snippet view article find links to article
may be made by the dehydrohalogenation of 1,4-dichloro-2-butyne by potassium hydroxide (in alcoholic medium) at ~70°C: ClCH2C≡CCH2Cl + 2 KOH → HC≡C−C≡CH
Onychomycosis (2,857 words) [view diff] exact match in snippet view article find links to article
appearance and confirmed by laboratory testing. The four main tests are a potassium hydroxide smear, culture, histology examination, and polymerase chain reaction
Vulvitis (945 words) [view diff] exact match in snippet view article find links to article
are diagnosed by microscopically examining a sample treated with potassium hydroxide for hyphae. They are treated with topical butoconazole, clotrimazole
Potassium humate (330 words) [view diff] exact match in snippet view article find links to article
conditioner. The extraction is performed in water with the addition of potassium hydroxide (KOH), sequestering agents and hydrotropic surfactants. Heat is used
Halohydrin (665 words) [view diff] exact match in snippet view article find links to article
Industrially, the base is calcium hydroxide, whereas in the laboratory, potassium hydroxide is often used. This reaction is the reverse of the formation reaction
Tinea corporis (1,131 words) [view diff] exact match in snippet view article find links to article
skin scrapings are placed on a slide and immersed on a dropful of potassium hydroxide solution to dissolve the keratin on the skin scrappings thus leaving
Crocodilian armor (1,039 words) [view diff] exact match in snippet view article find links to article
united, without visible intercellular substance. Treatment with potassium hydroxide and then with water will show sometimes, though not always, fine
Poison Prevention Packaging Act of 1970 (1,168 words) [view diff] exact match in snippet view article find links to article
in a dosage form intended for oral administration. Sodium and/or potassium hydroxide. Household substances in dry forms such as granules, powder, and
Dumas method (422 words) [view diff] exact match in snippet view article find links to article
nitrogen. The gases are then passed over special columns(such as potassium hydroxide aqueous solution) that absorb the carbon dioxide and water. A column
Hypobromite (468 words) [view diff] exact match in snippet view article find links to article
form upon treating bromine with aqueous alkali, such as sodium or potassium hydroxide. At 20 °C the reaction is rapid. Br2 + 2 OH−(aq) → Br− + BrO− + H2O
Hexanitrodiphenylamine (302 words) [view diff] exact match in snippet view article find links to article
warm glacial acetic acid, nitric acid, or aqueous alkalies except potassium hydroxide. Explosive data Detonation velocity 7100 m/s Except where otherwise
Cortinarius orellanus (573 words) [view diff] exact match in snippet view article find links to article
scales but become smooth with age. The cap surface turns black with potassium hydroxide. The thick gills are light ochre-coloured, changing to a rust-brown
Sable Chemicals (861 words) [view diff] exact match in snippet view article find links to article
(95 °F) and 30 bar (3,000 kPa). An electrolyte consisting of 25% wt/wt potassium hydroxide, the other part being demineralised water, is used as feed to the
Biuret test (893 words) [view diff] exact match in snippet view article find links to article
sample is treated with an equal volume of 1% strong base (sodium or potassium hydroxide) followed by a few drops of aqueous copper(II) sulfate. If the solution
Noryl (469 words) [view diff] exact match in snippet view article find links to article
expensive rare elements. It is highly resistant against the alkaline potassium hydroxide. For conductivity, the plastic is sprayed with a nickel-based catalyst
Potassium thioacetate (182 words) [view diff] exact match in snippet view article find links to article
H2S It arises also by the neutralization of thioacetic acid with potassium hydroxide. In a common application, potassium thioacetate is combined with
Doctor sweetening process (664 words) [view diff] exact match in snippet view article find links to article
dissolves in reasonably concentrated solutions of sodium hydroxide or potassium hydroxide owing to formation of a soluble compound, sodium plumbite: PbO +
Nickel(II) hydroxide (669 words) [view diff] exact match in snippet view article
synthesis entails treating aqueous solutions of nickel(II) salts with potassium hydroxide. The Ni2+ ion is a known carcinogen. Toxicity and related safety
Potassium ethyl xanthate (261 words) [view diff] exact match in snippet view article find links to article
on carbon disulfide. The alkoxide is often generated in situ from potassium hydroxide: CH3CH2OH + CS2 + KOH → CH3CH2OCS2K + H2O Potassium ethyl xanthate
Sterigmatocystin (875 words) [view diff] exact match in snippet view article find links to article
and chloroform. Sterigmatocystin reacts with a hot solution of potassium hydroxide and ethanol and is easily methylated by methyl iodide. Treatment
Water softening (1,486 words) [view diff] exact match in snippet view article find links to article
regeneration typically uses a solution of sodium hydroxide (lye) or potassium hydroxide. The waste waters eluted from the ion-exchange column containing
Potassium tert-butoxide (640 words) [view diff] exact match in snippet view article find links to article
as amide bases, e.g. lithium diisopropylamide, but stronger than potassium hydroxide. Its steric bulk inhibits the group from participating in nucleophilic
French submarine Gymnote (Q1) (1,000 words) [view diff] exact match in snippet view article
alkaline cells which used Zinc and copper oxide electrodes with potassium hydroxide electrolyte, manufactured by Coumelin, Desmazures et Baillache. These
Basic oxide (950 words) [view diff] exact match in snippet view article find links to article
NaOH(aq) Potassium oxide Potassium oxide react with water to produce Potassium hydroxide K2O(s) + H2O(l) → 2 KOH(aq) Rubidium oxide Rubidium oxide react with
Huang Minlon (841 words) [view diff] exact match in snippet view article find links to article
procedure calls for first heating the carbonyl compound, sodium or potassium hydroxide, and hydrazine hydrate (85% hydrazine) together in ethylene glycol
Diazomethane (1,167 words) [view diff] exact match in snippet view article find links to article
continuous point-of-use synthesis from N-methyl-N-nitrosourea and 0.93M potassium hydroxide in water was followed by point-of-use conversion with benzoic acid
Abundisporus (535 words) [view diff] exact match in snippet view article find links to article
slightly thick walls. The tissues of Abundisporus turn brown in potassium hydroxide. As of June 2017[update], Index Fungorum accepts seven species of
4,7-Dihydroisoindole (379 words) [view diff] exact match in snippet view article find links to article
does not take when either strong bases (potassium tert-butoxide, potassium hydroxide) or acids (trifluoroacetic acid, p-toluenesulfonic acid) are involved
Stanislao Cannizzaro (896 words) [view diff] exact match in snippet view article find links to article
that aromatic aldehydes are decomposed by an alcoholic solution of potassium hydroxide into a mixture of the corresponding acid and alcohol. For example
Boletus vinaceobasis (430 words) [view diff] case mismatch in snippet view article find links to article
dull yellow in color when stained with either Melzer's reagent or Potassium Hydroxide (KOH) solution. Spore bearing basadia contain 4 spores, and are scattered
Cannabis drug testing (2,000 words) [view diff] exact match in snippet view article find links to article
and typically involves placing the test sample in a solution of 5% potassium hydroxide and 95% ethanol. After approximately ten minutes, samples with CBD
Phthalic anhydride (1,159 words) [view diff] exact match in snippet view article find links to article
prepared by adding a hot solution of phthalimide to a solution of potassium hydroxide; the desired product precipitates. Phthalic anhydride is used to
Trichophyton concentricum (1,147 words) [view diff] exact match in snippet view article find links to article
clinical presentations. Scrapings from lesions can be stained with 10% potassium hydroxide for visualization under microscope. The medium Sabouraud's dextrose
Fuel cell (13,436 words) [view diff] exact match in snippet view article find links to article
was demonstrated across the U.S. at state fairs. This system used potassium hydroxide as the electrolyte and compressed hydrogen and oxygen as the reactants
Pears (soap) (2,305 words) [view diff] exact match in snippet view article
acids, but a chemist reports that in the 1960s, caustic potash (potassium hydroxide) was used. It has not been possible to determine what was used in
Bismuth(III) oxide (1,987 words) [view diff] exact match in snippet view article
electrolyte of bismuth compounds that is also rich in sodium or potassium hydroxide so as to have a pH near 14. The α-phase exhibits p-type electronic
Pentafluorosulfur hypofluorite (490 words) [view diff] exact match in snippet view article find links to article
is 0.0. SOF6 + 2I− + H2O → SO2F2 + I2 + 2HF + 2F− Alkalis such as potassium hydroxide react 2SOF6 + 12OH− → O2 + 10F− + 5H2O + 2SO3F− Alkenes react to
Wolff–Kishner reduction (3,967 words) [view diff] exact match in snippet view article find links to article
1912. Kishner found that addition of pre-formed hydrazone to hot potassium hydroxide containing crushed platinized porous plate led to formation of the
Phosphorothioic chloride difluoride (534 words) [view diff] exact match in snippet view article find links to article
The gas is hydrolysed slowly by water vapour. It also reacts with potassium hydroxide solution. Heat of vapourization is 5703 cal/mol. Infrared bands in
Aconitine (3,197 words) [view diff] exact match in snippet view article find links to article
9 steps creates the enone-aldehyde 107. Heating in methanol with potassium hydroxide causes an aldol condensation to close the sixth and final ring in
Dermatophyte (2,828 words) [view diff] exact match in snippet view article find links to article
sample from the nail, skin, or scalp and transferring it to a slide. Potassium hydroxide (KOH) is added to the slide and the sample is examined with a microscope
Argon (4,388 words) [view diff] exact match in snippet view article find links to article
alkali solution (B), which in Canvendish's original experiment was potassium hydroxide, and conveyed a current through wires insulated by U-shaped glass
Nafion (2,290 words) [view diff] exact match in snippet view article find links to article
the most significant will be discussed below. Chlorine and sodium/potassium hydroxide are among the most produced commodity chemicals in the world. Modern
Osmium (4,700 words) [view diff] exact match in snippet view article find links to article
battery electrode. However, osmium is expensive and would react with potassium hydroxide, the most common battery electrolyte. Osmium has high reflectivity
Co-fired ceramic (1,356 words) [view diff] exact match in snippet view article find links to article
Ulrich (2018). "Porosification behaviour of LTCC substrates with potassium hydroxide". Journal of the European Ceramic Society. 38 (5): 2369–2377. doi:10
Hygrophorus eburneus (1,774 words) [view diff] exact match in snippet view article find links to article
gills, and has a distinct sour odor; also, H. cossus does not have a potassium hydroxide reaction on the stem as does H. eburneus. The "white slime mushroom"
Diesel fuel (6,003 words) [view diff] exact match in snippet view article find links to article
The transesterification processes use catalysts, such as sodium or potassium hydroxide, to convert vegetable oil and methanol into FAME and the undesirable
Triatomic hydrogen (2,082 words) [view diff] exact match in snippet view article find links to article
about it. He stated that the easiest way to make it was to target potassium hydroxide with cathode rays. In 1913 Johannes Stark proposed that three hydrogen
Trichloroacetonitrile (1,516 words) [view diff] exact match in snippet view article find links to article
formed selectively, whereas with sodium hydride, cesium carbonate or potassium hydroxide and in the presence of phase transfer catalysts only α-trichloroacetimidates
David Hartley (philosopher) (2,668 words) [view diff] exact match in snippet view article
bladder stones rapidly dissolved in boiled soap-lye (caustic potash, potassium hydroxide). What was needed, then, was a safely ingestible preparation that
Sodium nitroprusside (3,943 words) [view diff] exact match in snippet view article find links to article
refined this method by the use of ammonia in place of sodium or potassium hydroxide. The reaction was now specific for methyl ketones. Addition of ammonium
Robert Spencer (doctor) (1,358 words) [view diff] exact match in snippet view article
he received an advertisement for Leunbach's Paste, consisting of "potassium hydroxide, sodium hydroxide, iodine and potassium iodide in an olive oil and
H. Lyman Saÿen (1,371 words) [view diff] exact match in snippet view article find links to article
harder (higher energy, more penetrating) x-rays. Saÿen used potash (potassium hydroxide, KOH) in the side bulb but other chemicals that would outgas when
Post-transition metal (14,921 words) [view diff] exact match in snippet view article find links to article
weak acid in warm, very concentrated KOH. It can also be fused with potassium hydroxide in air, resulting in a brown mass of potassium bismuthate. The solution
Allis-Chalmers (5,211 words) [view diff] exact match in snippet view article find links to article
US at state fairs. This was the first fuel-cell-powered vehicle. Potassium hydroxide served as the electrolyte. The original AC fuel cell tractor is currently
Chlorine (11,576 words) [view diff] no match in snippet view article find links to article
lower concentration. This method also produces very pure sodium (or potassium) hydroxide but has the disadvantage of requiring very pure brine at high concentrations
Micropump (3,450 words) [view diff] exact match in snippet view article find links to article
doublesided lithography and etched by silicon wet etching (using potassium hydroxide solution KOH). The connection between the structured wafer layers
Progesterone (8,935 words) [view diff] exact match in snippet view article find links to article
undergoes an intramolecular aldol condensation by treating with aqueous potassium hydroxide to produce progesterone. The hormonal action of progesterone was
Phosphaalkyne (2,823 words) [view diff] exact match in snippet view article find links to article
Fluoromethylidynephosphane (F-C≡P) can also be prepared via the potassium hydroxide promoted dehydrofluorination of trifluoromethylphosphine (CF3PH2)
Jatropha curcas (5,326 words) [view diff] exact match in snippet view article find links to article
a catalyst, usually sodium hydroxide (NaOH) or caustic soda and potassium hydroxide (KOH), which forms fatty esters (e.g., methyl or ethyl esters), commonly
Silsesquioxane (3,189 words) [view diff] exact match in snippet view article find links to article
phenyltrichlorosilane, (2) equilibration of this hydrolyzate with potassium hydroxide at a low concentration and temperature to give the prepolymer, and
Pediatric gynaecology (2,306 words) [view diff] exact match in snippet view article find links to article
are diagnosed by microscopically examining a sample treated with potassium hydroxide for hyphae. They are treated with topical butoconazole, clotrimazole
History of the electric vehicle (12,780 words) [view diff] exact match in snippet view article find links to article
DC drive motor in each wheel, and a pair of 36-volt silver-zinc potassium hydroxide non-rechargeable batteries. After years outside the limelight, the
Vertically aligned carbon nanotube arrays (7,231 words) [view diff] exact match in snippet view article find links to article
oxygen reduction in alkaline fuel cells. In air-saturated 0.1 molar potassium hydroxide, a steady-state output potential of –80 millivolts and a current