A brittle potassium alloy of silver-white colour and lamellar fracture is obtained by calcining 20 parts of bismuth with 16 of cream of tartar at a strong red heat. [Please select]
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After calcining the bones, I treated the white ash with various acids and alkaloids, and with fire and water, returning again and again to the trials when I had time. [Please select]
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The time occupied in calcining will depend of course upon the quality of the guhr being operated upon. [Please select]
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It is made by calcining and grinding a limestone rock containing naturally enough clayey matter (silica and alumina) to make a cement that will harden under water. [Please select]
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