bone-ash

Add 14 lbs. of pure freshburnt lime to the wetted sand, and while beating it up together add, in successive portions, 14 lbs. of bone-ash.

Archive 2004-09-12 2004

Their quality differs very greatly, and depends, of course, on that of the bone-ash employed, which can rarely be obtained of quality sufficient to yield more than 30 or 35 per cent of soluble phosphates.

Elements of Agricultural Chemistry Thomas Anderson

Superphosphates from bone-ash, on the other hand, contain a mere trifle of ammonia, and when well made a very large quantity of biphosphate of lime.

Elements of Agricultural Chemistry Thomas Anderson

It is the principal inorganic constituent of bones, and hence of the "bone-ash" of commerce (see PHOSPHORUS); it occurs with fluorides in the mineral apatite (_q. v._); and the concretions known as coprolites

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Various

For all other manures, of which bones and bone-ash form the basis, £7 may be taken as a fair price, and it is that usually adopted, though £8 and £10 have sometimes been assumed as the average.

Elements of Agricultural Chemistry Thomas Anderson

_ -- These are purchased alone, chiefly in the form of coprolites and bone-ash, or the spent animal charcoal of the sugar refiners.

Elements of Agricultural Chemistry Thomas Anderson

We thus find that when made from bones alone, the cost of that substance is not unfrequently as high as £40 per ton, and when bone-ash alone is used it is sometimes as low as £20.

Elements of Agricultural Chemistry Thomas Anderson

Coprolites are seldom used alone for the manufacture of superphosphates, but are generally mixed with bone-ash and bone dust.

Elements of Agricultural Chemistry Thomas Anderson

It is easy to understand why bone-ash should sell at double the price of coprolites, but no good reason can be shewn why the phosphates in one kind of guano should be sold at a much higher price than another, and the difference would probably disappear if greater attention were paid to the results of field experiments.

Elements of Agricultural Chemistry Thomas Anderson

Peruvian guano; insoluble phosphates in coprolites; and soluble phosphates in superphosphates, made from bone-ash alone.

Elements of Agricultural Chemistry Thomas Anderson