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About 112 g of KOH dissolve in 100 mL water at room temperature, which contrasts with 100 g/100 mL for NaOH. [14] Thus on a molar basis, KOH is slightly more soluble than NaOH. Lower molecular-weight alcohols such as methanol, ethanol, and propanols are also excellent solvents. They participate in an acid-base equilibrium.
The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/100 ml), unless shown otherwise. The substances are listed in alphabetical order.
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
It can be prepared by treating a potassium-containing base such as potassium hydroxide or potassium carbonate with acetic acid: . CH 3 COOH + KOH → CH 3 COOK + H 2 O. This sort of reaction is known as an acid-base neutralization reaction.
Methanol (also called methyl alcohol and wood spirit, amongst other names) is an organic chemical compound and the simplest aliphatic alcohol, with the chemical formula C H 3 OH (a methyl group linked to a hydroxyl group, often abbreviated as MeOH).
Here is a similar formula from the 67th edition of the CRC handbook. Note that the form of this formula as given is a fit to the Clausius–Clapeyron equation, which is a good theoretical starting point for calculating saturation vapor pressures: log 10 (P) = −(0.05223)a/T + b, where P is in mmHg, T is in kelvins, a = 38324, and b = 8.8017.
Formula IUPAC Name Common name Monohydric alcohols: CH 3 OH: Methanol: Wood alcohol C 2 H 5 OH: Ethanol: Alcohol, Rubbing alcohol C 3 H 7 OH: Propan-2-ol: Isopropyl alcohol, Rubbing alcohol C 4 H 9 OH: Butan-1-ol: Butanol, Butyl alcohol C 5 H 11 OH: Pentan-1-ol: Pentanol, Amyl alcohol C 16 H 33 OH: Hexadecan-1-ol Cetyl alcohol: Polyhydric ...
Impurities of the resulting potassium methoxide in methanol with metallic mercury can be eliminated by ultrafiltration. [4] Solid potassium methoxide is obtained by distilling off the methanol. Because of their simpler production and better handling for chemical purposes solutions of potassium methanolate ( 25 to 32% by weight) are preferably ...