It is decomposed by water, and with a solution of yellow phosphorus in carbon bisulphide it gives a red powder of composition PBI 2, which sublimes in vacuo at 210° C. to red crystals, and when heated in a current of hydrogen loses its iodine and leaves a residue of boron phosphide PB. [Please select]
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1) consists of a mixture of sulphide of copper, phosphide of copper, chlorate of potash, and No. [Please select]
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