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Updated: May 2, 2025
Thus 250 pounds of phosphorus in a ton of finely ground natural rock phosphate can be purchased at the mines in Tennessee and delivered at the farmer's railway station in the heart of the Corn Belt for $8. Or the ton of raw phosphate may be mixed with a ton of sulfuric acid in the fertilizer factory, and the two tons of acid phosphate may be sold to the same farmer for $32.
The scenery is lovely and the air healthy, but this is nothing compared to the wondrous waters and hot mire which oozes out of the earth in the vicinity of the river Vág. Hot sulfuric water, which contains radium, bubbles up in all parts of Pöstyén, and even the bed of the cold river is full of steaming hot mud.
We effect the move between us. What I am after is oxygen, the gas which I once saw fail so lamentably. I thought it all out at my leisure, with the help of a book. I will do this, I will do that, I will go to work in this or the other fashion. Above all, we will run no risks, perhaps of blinding ourselves; for it is once more a question of heating manganese dioxide with sulfuric acid.
When, through the low windows overlooking the garden of the school, my eye glanced at the laboratory, where the madder vats were steaming; when, in the sanctuary itself, I was present, by way of a first and last chemistry lesson, at the explosion of the retort of sulfuric acid that nearly disfigured every one of us, I was far indeed from suspecting the part which I was destined to play under that same vaulted roof.
In ten minutes my mind was made up, and taking my hat I set out for home, where I bathed, ate, and gave by telephone an order for a pickax, a spade, a military gas-mask, and six carboys of sulfuric acid, all to be delivered the next morning at the cellar door of the shunned house in Benefit Street.
Acid phosphate was also used in direct comparison; and, in answer to the question whether the general farmer should apply liberal amounts of finely ground natural rock phosphate, or whether he should pay four times as much for phosphorus after the fertilizer manufacturer has mixed one part of the raw rock with one of sulfuric acid and thus produced two parts of acid phosphate, these Pennsylvania experiments tell us that the yearly average for the twelve years gave a gain per year of $2.45 from the raw phosphate and 48 cents from the acid phosphate, at the prices used by the Pennsylvania Experiment Station.
A little farther south two rough and barren chains of hills encompass with their dark steeps a long basin formed in a clay soil mixed with bitumen and rock-salt. The water contained in this hollow is impregnated with a solution of different saline substances, having lime, magnesia, and soda for their base, partially neutralized with muriatic and sulfuric acid.
If Sorensen had something new and Thorn was almost totally convinced that he did then he was playing it smart by not trying to patent it. "Now then," Sorensen went on, "let's suppose that my battery is made up of lead and lead dioxide plates in a sulfuric acid solution, except that I've added a couple of trifling things and made a few small changes in the physical structure of the plates.
In the manufacture of acidulated fertilizers, one ton of raw phosphate, containing about two hundred and fifty pounds of the element phosphorus, is mixed with one ton of sulfuric acid to make two tons of acid phosphate; and, as a rule, these two tons of acid phosphate are mixed with two tons of filler to make four tons of complete fertilizer.
It contains in abundance, in a condensed state and retained by combination with the metal, the gas which we propose to obtain. An oily looking liquid, sulfuric acid, an excessively powerful agent, will set it at liberty. Thus filled, the retort is placed on a lighted stove. A glass tube brings it into communication with a bell jar full of water on the shelf of the pneumatic trough.
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