Synthesis of Copper(I) Bromide without Refluxing

Dissolve 88 g of sodium bromide in 500 mL of 40°C water with stirring, then add 150 g of copper sulfate pentahydrate. Then over the course of 5 minutes add 38 g of sodium metabisulfite and cool the mixture down in a freezer, filter and wash with 100 mL of cold water. Dry in a vacuum.

CuSO+ 2 NaBr = CuBr2 + Na2SO4

2 CuBr2 + H2O + Na2SO3 = 2 CuBr + 2 HBr + Na2SO4

Source

kupferbromid1-big

The bromide sulfate solution

kupferbromid2-big

Addition of the sodium metabisulfite

kupferbromid3

Filtering the mixture with washing

kupferbromid4

The dry product

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