Paint Making And Color Grinding a Practical Treatise for Paint Manufacturers An
The book Paint Making And Color Grinding a Practical Treatise for Paint Manufacturers An was written by author Charles Ludwig Uebele Here you can read free online of Paint Making And Color Grinding a Practical Treatise for Paint Manufacturers An book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Paint Making And Color Grinding a Practical Treatise for Paint Manufacturers An a good or bad book?
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, etc. There never has been a standard for purity as to Venetian red, and up to twenty years, ago any extended pigment owing its color to red oxide of iron could be placed on the market under that designation. Before the crusade for pure colors in oil began in this country in 1892, it was no uncommon occurrence that Venetian red paint was applied to iron structures that was found on analysis to consist of less than 10 per cent, sesquioxide of iron (Fe 2 O 3 ), the balance of pigment being baryt...es and whiting. Venetian Red. Venetian Red was originally made by grinding native red oxide or red hematite, but as the use of paint de- veloped the name was transferred by English dry color 206 PAINT MAKING AND COLOR GRINDING manufacturers to the artificial product made by calcin- ing green copperas with more or less limestone that gave a red pigment consisting of about 28 per cent, ferric oxide and 72 per cent, of sulphate of lime (terra alba or gypsum). Large quantities of this sort of English Venetian red were exported to this country, but since the American manufacturers made great progress in the production of oxide of iron paints, imports have been reduced to quite an extent.
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