History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c36.s7.14
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c36.s7.14
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c36.s7.14
The salt has a reddish-brown colour and consists mainly of sodium chloride with traces of sodium sulphate, alumina, magnesia, ferric oxide and sulphide of iron. During the fusion, a portion of the sodium sulphate is probably reduced to sulphide by the organic matter (*T. chebula*). This then reacts with the traces of iron salt present to form the sulphide of iron.