Definitions
from The Century Dictionary.
- noun Bichromate of potassium or sodium: a workman's term.
from the GNU version of the Collaborative International Dictionary of English.
- adjective having two colors.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Having
two colors
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective having two colors
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The bichrome mosaic in the northern room part of which has clearly gone down slope
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He also was the first to manufacture bichrome; and for many years, he and his partners, the Messrs. Turnbull, made "Turnbull's blue".
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In some cases the methods of mordanting, dyeing and saddening are combined together in the dyeing of wool, thus, for instance, a brown can be dyed by first mordanting with bichrome, then dyeing with camwood and saddening in the same bath with copperas.
The Dyeing of Woollen Fabrics Franklin Beech
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The saddening may be and is commonly done in the same bath, that is, after the wool has been stuffed it is lifted, the mordant -- copperas, bluestone, bichrome, or alum -- is added, and the wool is re-entered into the bath.
The Dyeing of Woollen Fabrics Franklin Beech
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Yellow, Alizarine Yellow, or Gambine Yellow, which will resist the action of the bichrome in the developing bath.
The Dyeing of Woollen Fabrics Franklin Beech
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When sulphuric acid is used as the assistant along with the bichrome, then there is formed on the wool fibre a deposit of chromic acid and chromium oxide, and this exerts an oxidising effect on the colouring matter or dye-stuff, which in some cases, as the Alizarine Blue,
The Dyeing of Woollen Fabrics Franklin Beech
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This method can be carried out in, for instance, dyeing a cochineal scarlet with tin crystals, a yellow from fustic and alum, a black from logwood and copperas and bluestone, a red from madder and bichrome, and the dyeing of the Alizarine colours by the use of chrome fluoride, etc.
The Dyeing of Woollen Fabrics Franklin Beech
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Other dye-stuffs, such as fustic, Persian berries and Alizarine yellow, are best dyed on a basic chrome mordant, which is effected when tartar or oxalic acid is the assistant mordant used, or when some other form of chrome compound than bichrome is employed.
The Dyeing of Woollen Fabrics Franklin Beech
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The older style is simple compared with the later style of bichrome (two-colored).
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The former seems more likely in that the emergence of bichrome pottery is dated to approximately 1550 B.C., or roughtly four centuries prior to the documented arrival of the Peleset ( "Sea-people").
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