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Examples

  • "We must get back of the furnace," Polder continued, indicating a narrow opening between brick walls through the unstopped chinks of which seethed the scorifying blaze.

    The Three Black Pennys A Novel

  • Since it contains combined water it is not suited for scorifying; therefore the determination of silver and gold (fine metal) is made by pot assay.

    A Text-book of Assaying: For the Use of Those Connected with Mines.

  • The assay of gold-zinc slimes, which is the precipitate formed by zinc acting on cyanide solutions of gold, may be made by wrapping 2 or 3 grams in 40 grams of sheet lead and scorifying, cupelling, &c. The amount of impurity in the stuff varies greatly; it is usually calcined and mixed thoroughly with soda 40 per cent., borax 30 per cent., and sand 10 per cent., and melted in graphite pots.

    A Text-book of Assaying: For the Use of Those Connected with Mines.

  • This property is taken advantage of in the operation of calcining, scorifying, cupelling, &c. The importance of a free access of air in all such work is seen when it is remembered that 1 litre of air contains 0.2975 gram of oxygen, and this quantity will only oxidise 0.1115 gram of carbon, 0.2975 gram of sulphur, or 3.849 grams of lead.

    A Text-book of Assaying: For the Use of Those Connected with Mines.

  • In scorification the proportion of lead required for scorifying 1 gram of ore is in average cases from 10 to 15 grams, sinking in the case of galena to 2 grams, and rising with earthy and refractory substances to from 30 to 40 grams.

    A Text-book of Assaying: For the Use of Those Connected with Mines.

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