Beet

Soluble in water and alcohol. It is a very feeble base. It occurs in beets and mangolds and many other plants, and can conveniently be prepared from beet molasses. 

Crystallizes from water in large colourless prisms containing 2H2O. It is poisonous, causing paralysis of the nervous system m.p. 101 C (hydrate), 189°C (anhydrous), sublimes 157°C. It occurs as the free acid in beet leaves, and as potassium hydrogen oxalate in wood sorrel and rhubarb. Commercially, oxalic acid is made from sodium methanoate. This is obtained from anhydrous NaOH with CO at 150-200°C and 7-10 atm. At lower pressure sodium oxalate formed from the sodium salt the acid is readily liberated by sulphuric acid. Oxalic acid is also obtained as a by-product in the manufacture of citric acid and by the oxidation of carbohydrates with nitric acid in presence of V2O5. 

H02C(CH2)2C02H. Colourless prisms m.p. 182 C, b.p. 235°C. Occurs in amber, algae, lichens, sugar cane, beets and other plants, and is formed during the fermentation of sugar, tartrates, malates and other substances by a variety of yeasts, moulds and bacteria. Manufactured by the catalytic reduction of maleic acid or by heating 1,2-dicyanoethane with acids or alkalis. Forms an anhydride when heated at 235°C. Forms both acid and neutral salts and esters. Used in the manufacture of succinic anhydride and of polyesters with polyols. 

All the experimental teats described so far have been confined to binary mixtures, but of course it is also desirable to know whether flux relations adequate in binary mixtures are still successful in mixtures with more than two components. Even in the case of ternary mixtures the form of explicit flux relations is very complex, and a complete investigation of the various matrix elements, in their dependence on both pressure and composition, would be a forbidding undertaking. Nevertheless some progress in this direction has beet made by Hesse and Koder [55] and by Remick and Geankoplis [56]. 

Beet sugar molasses Beet-sugar syrup Behavior modification Behenic acid [112-85-6]... 

Spectral discrimination (9) and specific gas detection can be modeled if one assumes the gas absorbs photons of a specific wavelength exponentially with distance into the gas (Beet s law). When the absorption distance is x (cm), the incident it power density at the detector in the spectral band pass is J (W/cm ) and the power density incident on the gas is the gas concentration, C (ppm) is given by ... 

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