what is the share of Argon in the open air ?what are its salient features?
Answers
Answer:
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Gas monitoring system allows to lower and keep oxygen on the level of tens of ppm
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Gas type and purity, L-PBF hardware and alloy type determine pick-up of oxygen and nitrogen
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316 L is a robust material whose chemistry and properties are not affected by O2 levels between 20 and 1000 ppm
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Only slightly higher nitrogen pick-up of about 50 ppm is observed when N2 is used in L-PBF
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Atmosphere of lower purity result in early powder degradation
Explanation:
Answer:
Although blood invariably contains a small amount of dissolved nitrogen, it appears that with animals no absorption of that gas takes place save what is due to its solubility in the serum of the blood. Nor is nitrogen eliminated from the system in the elementary state. At Professor Ramsay’s suggestion, experiments have been made on the comparative amount of argon in ordinary air, and in air which had been frequently breathed, with the view of ascertaining whether, if the proportion of oxygen and carbon dioxide in air be very much altered, argon would either enter into, or be expelled from, the respiratory system.