Industrial Recipes a Span Classsearchtermspan Classsearchtermcollect
Industrial Recipes a Span Classsearchtermspan Classsearchtermcollect
John Phin
The book Industrial Recipes a Span Classsearchtermspan Classsearchtermcollect was written by author John Phin Here you can read free online of Industrial Recipes a Span Classsearchtermspan Classsearchtermcollect book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Industrial Recipes a Span Classsearchtermspan Classsearchtermcollect a good or bad book?
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Nitrate of potassa (saltpetre), 24 ; sulphur 7 ; charcoal, 1. 2. Nitre, 6 ; sulphur, 2 ; yellow sulphuret of arsenic, 1. [Note. — This light is a veiy brilliant one and a very pure white, but the fumes are highly poisonous. It should be used only in the open air and the wind should blow the vapors away from the spectators — not towards them. ] 3. Chlorate of potash, 10 ; nitre, 5 ; lycopodium, 3 ; char- coal 2. 4. Metallic magnesium in the form of ribbon or wire. This is the best and most easil...y used. It may be purchased of most dealers in chemicals. A few inches of magnesium rib- bon coiled into a spiral (like a spiral spring) and ignited by means of a spirit lamp, or even by a little tuft of cotton soaked in alcohol and fired with a lucifer match, makes a light of siTrpassiug brilliancy and power. It requires a slight knack to ignite the ribbon. Hold the end of it steadily in the oute?- edge of the flame and it will soon take fii'e. The light given out by a small ribbon of magnesium is clearly visible at a distance of thirty miles.
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