Dictionary of Chemicals and Raw Products Used in the Manufacture of Paints, Colours, Varnishes and Allied Preparations, |
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Dictionary of Chemicals and Raw Products: Used in the Manufacture of Paints ... George H (George Henry) Hurst No preview available - 2021 |
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acetic acid added alcohol alkali alum alumina ammonia ammonium analysis antimony barium chloride barium sulphate barytes basic body boiling brown calcium carbonic acid caustic potash caustic soda cent chemical chromate chrome yellow coal-tar colouring matter colouring power commercial composition compounds contains copal copper covering power crystallisation crystals decomposed dilute dissolves distillation drying dyeing employed ether ferric oxide filter formula gives grammes green heated hydrochloric acid hydroxide insoluble known lake pigments lead sulphate lime linseed oil liquid manganese melts metal methyl mineral mixed mixture naphtha nitric acid obtained ochres odour orange oxide of iron oxygen paint paraffin petroleum spirit potassium prepared present properties proportion Prussian blue quantity residue resin rosin salts sample silica sodium carbonate soluble in water solution solvent specific gravity substance sulphide sulphuric acid temperature tests tint tree turpentine ultramarine usually variety varnishes weight white lead white precipitate zinc
Popular passages
Page 378 - ... Colours, Enamel, Soot and Metallic Pigments. A Text-book for Manufacturers, Merchants, Artists and Painters. By Dr. JOSEF BERSCH. Translated by AC WRIGHT, MA (Oxon.), B.Sc. (Lond.). Forty-three Illustrations. 476 pp., demy 8vo. Price 12s. 6d. net. (Post free, 13s.
Page 202 - Unverdorben found in shell-lac are the following : — i, a resin soluble in alcohol and ether ; 2, a resin soluble in alcohol, insoluble in ether ; 3, a resinous body, little soluble in cold alcohol ; 4, a crystallisable resin; 5, a resin soluble in alcohol and...
Page 207 - Pb., equiv. 1037, spec. grav. 11-4) is a bluish-white metal of considerable brilliancy, which soon disappears on exposure to the air, owing to the formation of a thin film of oxide. It is so soft that it may be readily cut with a knife, or may be made to take impressions, and it leaves a streak upon paper. It may be cut or beaten into thin sheets, but in ductility and tenacity it is low in the scale of metals. It is readily fusible at a temperature of about 625°, and at a higher temperature...
Page 202 - ... import duty. The following memorandum submitted in opposition thereto Is designed to show conclusively the absence of any justification for such action and the unwisdom of such a step. WHAT IS BLEACHED SHELLAC? Bleached shellac is obtained by bleaching the Indian sticklac or seedlac or flake shellac in several ways. One method is to boil ordinary shellac in a weak solution of carbonate of potash until it is dissolved ; then to pass chlorine gas through the solution. When the lac is thrown down...
Page 202 - ... Bleached shellac is obtained by bleaching the Indian sticklac or seedlac or flake shellac in several ways. One method is to boil ordinary shellac in a weak solution of carbonate of potash until it is dissolved ; then to pass chlorine gas through the solution. When the lac is thrown down free from color the resin is collected, washed with warm water, melted over water, and, by working with the hands, made into the form of more or less twisted cylindrical pieces having a marked fibrous structure....
Page 326 - THE TESTING AND VALUATION OF RAW MATERIALS USED IN PAINT AND COLOUR MANUFACTURE. By MW JONES, FCS A Book for the Laboratories of Colour Works. 88 pp. Crown 8vo.
Page 212 - It is formed as a white precipitate when sulphuric acid or a soluble sulphate is added to a solution of a lead salt.
Page 198 - It is collected twice a year, from about the middle of October to January, and from the middle of May to the middle of July. In the Scinde State it is found abundantly in the forests.
Page 23 - Sulphate of zinc is insoluble in alcohol, but it dissolves in two and one-third parts of cold water and in less than its own weight of boiling water.