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What is the range of reagent temperatures used for chemical dissolution in CHM?

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What is the range of reagent temperatures used for chemical dissolution in CHM?

(a) 12ᵒC to 35ᵒC

(b) 37ᵒC to 85ᵒC

(c) 90ᵒC to 101ᵒC

(d) 121ᵒC to 142ᵒC

This question was posed to me in final exam.

Asked question is from Chemical Milling in chapter Chemical Processes of Advanced Machining

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Best answer
Right choice is (b) 37ᵒC to 85ᵒC

The explanation: The optimum temperature of reagent used should range between 37ᵒC to 85ᵒC.

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