Bromine burns, treatment

This compound is formed as a white precipitate from the interaction of ammonium aci-nitro-acetate and mercuric chloride in aqueous solution. It sublimes when carefully heated, detonates when strongly heated, and when ignited burns with a luminous flame,. In bases it dissolves readily, but is almost insoluble in boiling water. Treatment with bromine in potassium bromide solution forms ethyl dibromonitro-acetate, and potassium iodide removes the mercury from the anhydride as mercuric iodide. 

Compound A (C7H14O) burned with a yellow, nonsooty flame and did not decolorize a bromine-methylene chloride solution. It did give a positive 2,4-dinitrophenylhydrazine test, but a negative Tollens test. Treatment of the compound with lithium aluminum hydride followed by neutralization with acid, produced compound B, which gave a positive Lucas test in about 5 min. Compound B also gave a positive ceric nitrate test. The NMR spectrum for compoimd A... 

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