A History of Hindu Chemistry From the Earliest Times to the Middle of the Sixtee
A History of Hindu Chemistry From the Earliest Times to the Middle of the Sixtee
Prafulla Chandra Ray
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' (i) Secondly, the unstable nitrous acid that is formed acts on another molecule of HC1, producing a compound known as nitrosyl chloride and water, thus : HNO a + HCl=NOCl + H a 6... (ii) The reactions (i) and (ii) when expressed by a single equation may be written as follows : NO 2 OH + 3HC1=NOC1 + 2H 2 O + C1 2 (iii) Now, here, instead of free nitric and hydrochloric acids, we have saturated solutions of a nitrate and a chloride, and an action similar to the above may take place under the in...fluence of heat only, instead of water, the hydrates of the metals present in the n-itrate and the chloride are formed. Thus, instead of equation (iii) we may have the following action : NO 2 . OK+ 3 NaCI -f 2H 2 O == NOCI +3NaOH + KOH + CI 2 . When the solution boils and these actions set 214 HINDU CHEMISTRY in, the rungwala puts the golden articles in it. The chlorine liberated as well as the chlorine in the nytrosyl chloride attacks the gold and reduces it to the form of a soluble chloride, which mixes with the mass of the fluid.
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