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8 results for “Ethylene”

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Britannica 11th

Encyclopaedia Britannica · 11th edition

8 matches

Ethylene

Britannica 11th

ETHYLENE, or ETHENE, C2H<, or H2C:CH3, the first representative of the series of olefine hydrocarbons, is found in coal gas. It is usually prepared by healing a mixture of ethyl alcohol and sulphuric acid. G. S. Newth (Jour. Chem. Soc., 1901, 79, p. 915) obtai ...

Vol. 9, pp. 851-851 OCR text aligned to scanned pages Relevance 330.0

Ethyl

Britannica 11th

ETHYL, in chemistry, the name given to the alkyl radical CjHj. The compounds containing this radical are treated under other headings; the hydride is better known as ethane, the alcohol, CjHsOH, is the ordinary alcohol of commerce, and the oxide (CjH6)jO is or

Vol. 9, pp. 851-851 OCR text aligned to scanned pages Relevance 34.62

Anthracene

Britannica 11th

... minium chloride: — Br-CH Br C.H.+ I +C4H.=4HBr+C4H Br-CH-Br and similarly from methylene dibromide and benzene, and also when benzyl chloride is heated with aluminium chloride to 200° C. By condensing ortho-brombenzyl bromide with sodium, C. L. Jackson and J. ...

Vol. 2, pp. 105-105 OCR text aligned to scanned pages Relevance 12.0

Ether

Britannica 11th

... onate before the application of the test. When heated with zinc dust, it yields ethylene and water. Chromic acid oxidizes it to acetic acid and ozone oxidizes it to ethyl peroxide. In contact with hydriodic acid gas at o°C., it forms ethyl iodide (R. D. Silva, ...

Vol. 9, pp. 806-806 OCR text aligned to scanned pages Relevance 12.0

Ethnology And Ethnography

Britannica 11th

... rica and India and separating two distinct marine zoological provinces." ETHYL— ETHYLENE which it is most reasonable broadly to divide mankind they may be analysed as to their racial constituents and their habitats as follows: — 1. Caucasic or White Man is bes ...

Vol. 9, pp. 849-851 OCR text aligned to scanned pages Relevance 12.0

Sugar

Britannica 11th

... 861 Butlerow obtained a sugar-like substance, methylenitan, by digesting trioxymethylene, the solid polymer of formaldehyde, with lime. The work was repeated by O. Loew, who prepared in 1885 a sweet, unfermentable syrup, which he named formose, CeHiiOt and, la ...

Vol. 26, pp. 32-35 OCR text aligned to scanned pages Relevance 12.0

Thiazines

Britannica 11th

... class III., thiodiphenylamine, CtH*^ yCtHt, being the parent substance of the methylene blue series of dyestuffs. Thiodiphenylamine THIAZOLES— THIBAUT IV. miaire (5th October 1795) he opposed those Thennidorians who wished to postpone the dissolution of the C ...

Vol. 26, pp. 844-845 OCR text aligned to scanned pages Relevance 12.0

Thiophen

Britannica 11th

... istillate is finally rectified. It may be obtained in small quantity by passing ethylene or acetylene into boiling sulphur; by passing ethyl sulphide through a red-hot tube; by heating crotonic acid, butyric acid or erythrite with phosphorus pen tasulp hide; b ...

Vol. 26, pp. 850-850 OCR text aligned to scanned pages Relevance 12.0