6. The cost of cleaning boilers from incrustation, and loss of time
caused by cleaning, is entirely done with. Old incrustations, which
could not be cleaned out before, get decomposed and break off in soft
pieces.
7. The cost of this purification is covered sufficiently by the above
advantages, and besides this, the method is cheaper and surer than any
other.
The chemical factory, Eisenbuettel, furnishes pure carbonate of soda in
single packages, which exactly correspond with the quantity, stated by
the analysis, of ten cubic meters of a certain water. The determination
of the quantities of lime and carbonate of soda necessary for a certain
kind of water, after sending in a sample, will be done without extra
charge.--_Neue Zeitung fur Ruebenzucker Industrie_.
* * * * *