Bicarbonate Ion → HCID 22936102, compound

Participants

Reaction Steps

In general, the composite particles are formed by mixing particles of sodium bicarbonate in an aqueous solution of sodium carbonate. The sodium bicarbonate reacts with the sodium carbonate in the aqueous binder solution to form the sesquicarbonate. More specifically, during the agglomeration of the sodium bicarbonate particles with the aqueous binder solution of the sodium carbonate, particles of the bicarbonate stick together upon being wetted by the binder solution. The surfaces of the sodium bicarbonate particles being wetted by the aqueous solution react with sodium carbonate in-situ to form sodium sesquicarbonate. The sesquicarbonate crystal forms especially upon cooling. Agglomeration of the sodium bicarbonate particles with the sodium carbonate solution, thus, yields composite particles comprised of two or more particles of sodium bicarbonate joined together by precipitated sesquicarbonate bridges and this formed composite comprises the bulk of the agglomeration product. As well, individual sodium bicarbonate particles can be coated with the sesquicarbonate if high levels of binder solution are utilized.

Provenance & Evidence