A Practical Treatise on Pure Fertilizers; And the Chemical Conversion of Rock Guanos, Marlstones, Coprolites, and the Crude Phosphates of Lime and Alumina Generally, Into Various Valuable Products
A Practical Treatise on Pure Fertilizers; And the Chemical Conversion of Rock Guanos, Marlstones, Coprolites, and the Crude Phosphates of Lime and Alumina Generally, Into Various Valuable Products
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 Excerpt: ...this process, I dissolve the crude phosphate of lime in hydrochloric acid diluted with the smallest possible quantity of water, so as to avoid unnecessary evaporation. I dry down the solution in pans or ordinary evaporating furnaces, taking care to arrange for the collection and condensation of the acid fumes which ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 Excerpt: ...this process, I dissolve the crude phosphate of lime in hydrochloric acid diluted with the smallest possible quantity of water, so as to avoid unnecessary evaporation. I dry down the solution in pans or ordinary evaporating furnaces, taking care to arrange for the collection and condensation of the acid fumes which will be driven off; the heat should not exceed 3500 Fahrenheit; otherwise, tri-phosphate of lime may be produced. The materials should be frequently stirred; and, in order to complete the decomposition, the dry products, after removal from the furnaces, may be powdered, mixed, and again heated. I wash the diphosphate with or without addition of chalk, according to the amount of acid phosphate undecomposed, and dry the di-phosphate as in the previous processes. I precipitate any phosphate in the wash-water with caustic lime. "5. I find, that when a solution of phosphate of lime in hydrochloric acid is precipitated by milk of lime or lime water, as is well known, a small part of this precipitate may be produced in the state of di-phosphate, and special precautions will be necessary, as hereinafter described, to prevent the greater part being produced in the state of ordinary tri-phosphate of lime. When preparing the di-phosphate of lime in this manner, I add the lime very gradually, and stop short in the addition of lime some time before the liquid becomes alkaline; that is to say, whilst the mixture is still strongly acid with the acid mono-phosphate of lime and remains so. After continued stirring I run off the liquor, and, having washed away the chloride of calcium, I dry the residue, which is the di-phosphate. I am careful to add to the liquor which is run off, and to the water with which I wash away the chloride of calcium from the di-pho...
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Add this copy of A Practical Treatise On Pure Fertilizers: And The to cart. $61.07, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2015 by Arkose Press.
Add this copy of A Practical Treatise on Pure Fertilizers: and the to cart. $78.19, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2015 by Arkose Press.
