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[Chemical Knowledge]:Analysis of the difference between the use of mercuric chloride and calomel

Mercury and calomel are two common chemical raw materials, they have different characteristics and uses in practical applications. Mercury is a colorless gas, easy to liquefy at high temperature, with strong toxicity and volatility; and calomel is a solid powder, high stability, not volatile. In use, mercuric chloride is mainly used for the measurement of thermometers, pressure gauges and other instruments, while calomel is mainly used in casting, alloy manufacturing and other industrial fields. In addition, mercuric is also commonly used in medicine and agriculture, while calomel is more widely used in electronics, chemical and other fields. In general, mercuric chloride has more uses in precision instruments and medicine, while calomel is more common in industrial production and chemical industry.

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