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The Preparation and Composition of Lime-Sulphur Sprays

Published online by Cambridge University Press:  27 March 2009

A. A. Ramsay
A. A. Ramsay
Affiliation:
(Chemical Laboratory, Department of Agriculture, Sydney, New South Wales.)
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Extract

In the preparation of lime-sulphur solutions used for spraying purposes by boiling together lime, sulphur and water, the following equations represent reactions which might occur primarily:

(1) 3CaH2O2 + S4 = 2CaS + CaS2O3 + 3H2O,

(2) 3CaH2O2 + S12 = 2CaS5 + CaS2O3 + 3H3O.

According to the above equations 3 molecules slaked lime CaH2O2 or 3 molecules of quick lime CaO may combine with 4 to 12 atoms sulphur; or 1 part of quick lime (by weight) should combine with ·7619 to 2·2857 parts of sulphur.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 6 , Issue 2 , May 1914 , pp. 194 - 202
Copyright
Copyright © Cambridge University Press 1914

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References

page 195 note 1 Dhnique-Mayer, F., Rev. génér. Chim. pure appl., 1908, XI. pp. 273, 274Google Scholar; Analyst, 1908, p. 484.

page 195 note 2 Podreschetuikoff, E., Zeit. Farben Ind., 1907, VI. p. 388Google Scholar; Analyst, 1908, p. 141.

page 195 note 3 Dusserre, O. and Vuilleumier, V., Chem. Zeit., 1909, XXXIII. p. 1129Google Scholar; Analyst, 1909, p. 545.

page 195 note 4 Harris, Jas. E., Technical Bulletin, No. 6, Michigan Agric. College, 1911.Google Scholar

page 195 note 5 Modrakowski, G., Zeit. Physiol. Chem. 1903, XXXVIII. p. 562CrossRefGoogle Scholar; Analyst, XXVIII. p. 321.

page 195 note 6 Pringsheim, H. H., Berichte, 1903, XXXIII. 4244–4246Google Scholar; Analyst, XXIX. p. 97.