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The trimer 1,3,5-trioxane, (CH 2 O) 3, is a typical oligomer. Many cyclic oligomers of other sizes have been isolated. Similarly, formaldehyde hydrates to give the geminal diol methanediol, which condenses further to form hydroxy-terminated oligomers HO(CH 2 O) n H. The polymer is called paraformaldehyde. The higher concentration of ...
Lange's Handbook of Chemistry (15th ed.). McGraw-Hill. Section 3; Table 3.2 Physical Constants of Inorganic Compounds. ... "Estimation Chemical Form Boiling Point ...
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
The compound is closely related and convertible to the industrially significant derivatives paraformaldehyde ((CH 2 O) n), formaldehyde (H 2 C=O), and 1,3,5-trioxane ((CH 2 O) 3). [3] Methanediol is a product of the hydration of formaldehyde. The equilibrium constant for hydration is estimated to be 10 3, [4] CH 2 (OH) 2 predominates in dilute ...
Water boiling at 99.3 °C (210.8 °F) at 215 m (705 ft) elevation. The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid [1] [2] and the liquid changes into a vapor. The boiling point of a liquid varies depending upon the surrounding environmental pressure.
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
Vanillin is an organic compound with the molecular formula C 8 H 8 O 3.It is a phenolic aldehyde.Its functional groups include aldehyde, hydroxyl, and ether.It is the primary component of the extract of the vanilla bean.
In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula −OH and composed of one oxygen atom covalently bonded to one hydrogen atom. In organic chemistry , alcohols and carboxylic acids contain one or more hydroxy groups.