The Farmer's magazine . to burn at the present moment: if deprivedof oxygen, it would be extinguished ; but if the supplybe augmented, its brilliancy will be much will immerse the lighted candle in this jar of a moment you see the flame becomes brilliant, andburns with so much splendour as to dazzle the eyes. A similar increase in the intensity of the action isseen, when other combustible substances, such assulphur and phosphorus, previously ignited in the air,are brought into contact with pure oxygen gas. I willI put some sulphur in this copper spoon, and will theni igni
The Farmer's magazine . to burn at the present moment: if deprivedof oxygen, it would be extinguished ; but if the supplybe augmented, its brilliancy will be much will immerse the lighted candle in this jar of a moment you see the flame becomes brilliant, andburns with so much splendour as to dazzle the eyes. A similar increase in the intensity of the action isseen, when other combustible substances, such assulphur and phosphorus, previously ignited in the air,are brought into contact with pure oxygen gas. I willI put some sulphur in this copper spoon, and will theni ignite it over the spirit lamp. The combustion in theI air is only slow; you will see the difference the mo-ment I immerse the spoon in this jar of oxygen. Youperceive the intensity of the beautiful blue flame of thesulphur is much i^cretl^e?l, and that it tinges all thesm rnuiuling objects. Fig. 2 reprtsonts the method ofpcrrorniing this experiment, and also shows the beau-tiful ctiect produced. THE FARMERS MAGAZINE. 621. The burning of phosphorus in oxygen giis, is perhapsone of the most brilliant experiments tliat chemistrycan j)roduce. Piiosphorus (the base of bones) is wellknown as the powerful slbstance used in tlie manufac-ture of lucifer matches. It burns with great velie-mence in common air ; but when introduced into oxy-gen its eombustion is increased to such an extentthat it is quite impossible to behold the beauty ofthe flame with unshaded eyes. I will put thispiece of phosphorus, which I have previously driedbetween folds of blotting-paper, into a cold cop-per spoon, ignite it with a hot wire, and thenquickly introduce it into the jar of oxygen. Thebrilliant light produced is such as to iUuminatc thewhole room as if by the light of the sun. Fig. 2 willrepresent also the manner of performing this experi-ment. Phosphorus ought always to be carefullyhandled, and it must be kept in a bottle filled withwater. It has so great an attraction for oxygen thatit takes fire on the
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Keywords: ., bookcentury1800, bookidfarmersmagazine21, booksubjectagriculture
