Artists' Pigments: Their Chemical and Physical PropertiesD. Van Nostrand Company, 1923 - 228 σελίδες |
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Σελίδα 27
... considerably changing the translucency and deepening the hue of the pigment . The Siennas like Umbers doubtless orginally took their names from the localities in which they were first found . Analogous native earth pigments are obtained ...
... considerably changing the translucency and deepening the hue of the pigment . The Siennas like Umbers doubtless orginally took their names from the localities in which they were first found . Analogous native earth pigments are obtained ...
Σελίδα 31
... considerable amount of manganese oxides ( see Umbers ) . Cappah Brown was originally mined in Skibbereen , in the county of Cork about 1814 , but is today obtained from various sources , its composition varying consider- ably according ...
... considerable amount of manganese oxides ( see Umbers ) . Cappah Brown was originally mined in Skibbereen , in the county of Cork about 1814 , but is today obtained from various sources , its composition varying consider- ably according ...
Σελίδα 40
... considerably . If during precipitation of the lead chromate , addition of the proper quantity of sulphuric acid is made , paler lemon or citron hues will be obtained . Alum and Blanc Fixe ( BaSO4 ) are also employed in making the paler ...
... considerably . If during precipitation of the lead chromate , addition of the proper quantity of sulphuric acid is made , paler lemon or citron hues will be obtained . Alum and Blanc Fixe ( BaSO4 ) are also employed in making the paler ...
Σελίδα 43
... considerable mention of them . Coal - tar is a brownish - black , oily , viscous fluid , colored by suspended carbon and of exceedingly complex com- position . More than a hundred substances are more or less accurately known and ...
... considerable mention of them . Coal - tar is a brownish - black , oily , viscous fluid , colored by suspended carbon and of exceedingly complex com- position . More than a hundred substances are more or less accurately known and ...
Σελίδα 46
... considerable amount of green and violet light , in consequence of which it acquires a decided purplish hue when examined by artificial light , particularly by gas or candle light . The usual Cobalt Blues of violet hue , are compounds of ...
... considerable amount of green and violet light , in consequence of which it acquires a decided purplish hue when examined by artificial light , particularly by gas or candle light . The usual Cobalt Blues of violet hue , are compounds of ...
Συχνά εμφανιζόμενοι όροι και φράσεις
admixture alcohol Alizarin alkalies alumina aluminum ammonium artists atoms Barium Barium Chromate base brilliant Brown Cadmium Yellow calcined calcium carbon dioxide Carmine chemical and physical chloride chromate Chrome Greens Chrome Yellow clay coal-tar Cobalt Blue coloring matter coloring principle colorless compounds containing copper crystalline decompose dilute dissolved distillation durable elements ferric Gamboge grams gray gypsum H₂O heated hydrated hydrochloric acid hydrogen sulphide hydroxide impure Indigo insoluble known lake colors lake pigments Lamp Black Lithopone Madder Lakes manufacture ments metallic mineral mixture nitric acid obtained ochres oil color opaque organic oxygen painting Permalba permanent to light potassium powder precipitate principally produced Prussian Blue pure reaction Red Lead salts Sienna silicate sodium sulphide soluble in water substances sulphate sulphuric acid techniques temperature tinting strength transparent Ultramarine variety Vermilion violet washed water color water of crystallization water solution White Lead yellow lakes yield Zinc Oxide Zinc White
Δημοφιλή αποσπάσματα
Σελίδα 208 - CAPACITY. marked. 4 gills = 1 pint pt. 2 pints -. 1 quart i/f. 4 quarts = 1 gallon gal. 2 gallons = 1 peck pk, 4 pecks ~ 1 bushel /<».-„'• . 8 bushels = 1 quarter qr.
Σελίδα 207 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 206 - MEASURE 144 sq. in. = 1 sq. ft. 9 sq. ft. = 1 sq. yd.
Σελίδα 207 - APOTHECARIES' WEIGHT. 20 grains (gr.) = 1 scruple (3). 3 scruples = 1 dram (3). 8 drams = 1 ounce ( 5 ). 12 ounces = 1 pound (ft).
Σελίδα 208 - In counting many kinds of articles we use these measures : 12 things = 1 dozen (doz.) 12 dozen = 1 gross (gr.) 12 gross = 1 great gross (G. gr.) 20 things = 1 score...
Σελίδα 181 - Triclinic CHRYSOCOLLA, 383 CuSiO3.nH2O Amorphous The United States produces about 30 per cent of the world's copper. Copper is used most extensively for the transmission of electricity and in castings and alloys. Brass consists of copper and zinc; German silver of copper, zinc, and nickel; bronze and bell metal of copper, tin, and zinc.
Σελίδα 155 - An acid is a hydrogen compound whose water solution contains hydrogen ions.
Σελίδα 207 - Apothecaries' weight: 20 grains = 1 scruple; 3 scruples = 1 dram; 8 drams = 1 ounce; 12 ounces = 1 pound.
Σελίδα 58 - Soon after the discovery of Eosin dye, in 1876, many lake pigments were introduced having this powerful and brilliant, but exceedingly fugitive dye as the coloring principal on various bases. The Geranium Lakes used principally in the fine arts are precipitated on the transparent alumina hydrate base. This color when produced from fugitive dyes, such as Eosin, Erythrosine, etc., fades in, very short time and should not be used, even if only a fair amount of permanence is required.
Σελίδα 45 - Perkin discovered a beautiful violet compound, mauve, while experimenting with aniline. During the next few years he established the manufacture of mauve on a commercial basis. This proved to be the starting point for a great industry for the preparation of thousands of different colors of almost every conceivable hue by synthetic processes.