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Origin of colcothar
Words nearby colcothar
Example sentences from the Web for colcothar
The wooden disc is also employed for this purpose with putty, colcothar, or washed tripoli.
When this Colcothar hath undergone a violent fire, as in the experiment now related, scarce any Acid remains therein.Elements of the Theory and Practice of Chymistry, 5th ed.|Pierre Joseph Macquer
When the cork or wooden disc edged with hat felt is used for polishing, putty or colcothar is applied to it.
Emery with oil is used for grinding down, and tin-putty or colcothar for polishing.
A factitious article is prepared by calcining a mixture of colcothar and red ochre.Cooley's Practical Receipts, Volume II|Arnold Cooley