Sentence Examples with the word animal charcoal

The most common varieties met with are lampblack, gas carbon, wood charcoal, animal charcoal and coke.

From the centrifugal the sugar is either turned out without washing as raw sugar, only fit for the refinery, or else it is well washed with a spray of water and air until white and dry, and it is then offered in the market as refined sugar, although it has never passed through animal charcoal (bone-black).

The residue is then dissolved in water, decolorized by animal charcoal and saturated at 50 C. with oxalic acid.

View more

A variety of animal charcoal is sometimes prepared by calcining fresh blood with potassium carbonate in large cylinders, the mass being purified by boiling out with dilute hydrochloric acid and subsequent reheating.