Science And Fruit Growing Being An Account of the Results Obtained At the Wobur
Science And Fruit Growing Being An Account of the Results Obtained At the Wobur
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To quickly assess the difficulty of the text, read a short excerpt:
It is somewhat remarkable that, in spite of the large amount of work which had been done on Bordeaux spraying, both in France and America, no attempt had been made to obtain information on the point of most fundamental importance, 172 INSECTICIDES, FUNGICIDES, ETC. 173 namely, the compound present in it. This question was attacked at Woburn, 1 and was found to be one of great complexity.
The addition of lime, preferably in the form of clear lime- water, to a solution of copper sulphate, forms a... series of different compounds (basic sulphates) according to the proportions taken. The simplified chemical formulae of these, and the proportions of sulphate (CuSO 4, 5H 2 O) and lime required for their formation, are as follows Proportions required. Sulphate. Lime.
A. IoCuO, 2-5SO 3 (or 4CuO, SO 3 ) . I : 0-169 B. IoCuO, 2SO 3 . . . . I : 0-18 C. IoCuO, SO 3 . . . . I : 0-203 D. IoCuO, SO 3, 3CaO . I : 0-270 F. IoCuO, aoCaO . . . . I : 0-674 The compound A is formed when the lime is just sufficient to precipitate the whole of the copper; C is the product when the proportion of lime is increased up to the point when any further addition would make the liquid alkaline, and F is the product finally obtained with excess of lime.
What to read after Science And Fruit Growing Being An Account of the Results Obtained At the Wobur?
You can find similar books in the "Read Also" column, or choose other free books by Herbrand Arthur Russell Bedford to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It is somewhat remarkable that, in spite of the large amount of work which had been done on Bordeaux spraying, both in France and America, no attempt had been made to obtain information on the point of most fundamental importance, 172 INSECTICIDES, FUNGICIDES, ETC. 173 namely, the compound present in it. This question was attacked at Woburn, 1 and was found to be one of great complexity.
The addition of lime, preferably in the form of clear lime- water, to a solution of copper sulphate, forms a... series of different compounds (basic sulphates) according to the proportions taken. The simplified chemical formulae of these, and the proportions of sulphate (CuSO 4, 5H 2 O) and lime required for their formation, are as follows Proportions required. Sulphate. Lime.
A. IoCuO, 2-5SO 3 (or 4CuO, SO 3 ) . I : 0-169 B. IoCuO, 2SO 3 . . . . I : 0-18 C. IoCuO, SO 3 . . . . I : 0-203 D. IoCuO, SO 3, 3CaO . I : 0-270 F. IoCuO, aoCaO . . . . I : 0-674 The compound A is formed when the lime is just sufficient to precipitate the whole of the copper; C is the product when the proportion of lime is increased up to the point when any further addition would make the liquid alkaline, and F is the product finally obtained with excess of lime.
What to read after Science And Fruit Growing Being An Account of the Results Obtained At the Wobur?
You can find similar books in the "Read Also" column, or choose other free books by Herbrand Arthur Russell Bedford to read onlineMoreLess
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