373. The system oxalic acid–sodium hydroxide–water

Condensation of leuco-5-hydroxyquinizarin with aldehydes under Marschalk conditions (sodium hydroxide – water) gives 2-alkyl-5-hydroxyquinizarins with high regioselectivity, while the 3-alkyl compounds are obtained under Lewis conditions (piperidinium acetate – isopropanol). Reaction of the quinone with nitronate anions in methanol yields 2-alkyl derivatives exclusively.

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Determination and Modeling of the Solubilities of Oleanolic Acid and Ursolic Acid in Ethanol + Sodium Hydroxide + Water Mixed Solvents from T = 283.2 to 323.2 K

Journal of Chemical & Engineering Data ◽

10.1021/acs.jced.7b00686 ◽

2017 ◽

Vol 62 (11) ◽

pp. 3991-3997 ◽

Cited By ~ 10

Author(s):

Jie-Ping Fan ◽

Ya-Hui Cao ◽

Xue-Hong Zhang ◽

Dai-Quan Jiang ◽

Jia-Xin Yu

Keyword(s):

Sodium Hydroxide ◽

Ursolic Acid ◽

Oleanolic Acid ◽

Mixed Solvents ◽

Hydroxide Water

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713. The heat of solution of halides, sulphuric acid, oxalic acid, sodium hydroxide, and urea in ethyl alcohol–water mixtures

Journal of the Chemical Society (Resumed) ◽

10.1039/jr9500003612 ◽

1950 ◽

Vol 0 (0) ◽

pp. 3612-3615 ◽

Cited By ~ 9

Author(s):

M. Bobtelsky ◽

R. D. Larisch

Keyword(s):

Oxalic Acid ◽

Sodium Hydroxide ◽

Sulphuric Acid ◽

Ethyl Alcohol ◽

Heat Of Solution ◽

Alcohol Water

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A Study of the Inosine–Sodium Hydroxide–Water and Inosine–Potassium Hydroxide–Water Systems

Bulletin of the Chemical Society of Japan ◽

10.1246/bcsj.47.2556 ◽

1974 ◽

Vol 47 (10) ◽

pp. 2556-2558 ◽

Cited By ~ 2

Author(s):

Yoshihisa Suzuki ◽

Tadao Toki

Keyword(s):

Sodium Hydroxide ◽

Potassium Hydroxide ◽

Water Systems ◽

Hydroxide Water

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THE HEATS OF ADSORPTION AND WETTING OF MERCERIZED CELLULOSES BY SODIUM HYDROXIDE SOLUTIONS, WATER, AND METHYL ALCOHOL

Canadian Journal of Research ◽

10.1139/cjr40b-022 ◽

1940 ◽

Vol 18b (6) ◽

pp. 168-179 ◽

Cited By ~ 9

Author(s):

J. L. Morrison ◽

W. Boyd Campbell ◽

O. Maass

Keyword(s):

Crystal Lattice ◽

Sodium Hydroxide ◽

Methyl Alcohol ◽

Internal Surface ◽

Aqueous Sodium Hydroxide ◽

Aqueous Sodium ◽

Heats Of Adsorption ◽

Heat Of Wetting ◽

Irreversible Effects ◽

Hydroxide Water

The heats of adsorption and wetting by aqueous sodium hydroxide, water, and methyl alcohol have been determined for celluloses mercerized at several different alkali concentrations. A quantity named the "heat of mercerization" has been determined, and it is considered to be a measure of the irreversible effects that distinguish mercerized from standard cotton cellulose, such as changed crystal lattice and enhanced internal surface. The extent of the latter change for the various mercerized celluloses has been shown by the heat of wetting measurements with water and methyl alcohol.

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