【Daily Question】Chemical Analysis Version 2020.1.18

2020-01-18View Original

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This post was last edited by zjp on 2020-1-18 09:18. Multiple-choice question: When cement plants determine the silicon dioxide content in samples of cement raw materials, limestone, etc., what method is generally used to decompose these samples? A. Dissolution in sulfuric acid B. Dissolution in hydrochloric acid C. Dissolution in mixed acid aqua regia D. Semi-melting dissolution using sodium carbonate as a flux D

Reply #22020-01-18

D. Sodium carbonate as a flux, semi-molten dissolution

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【Daily Question】Chemical Analysis Version 2020.1.18

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