The Bridgeport evening farmer., 1915-05-07
MAKING LIME-sULPHUR CO1
 CENTRATE.
Directions for Preparing This Spray Material at Home-Cost and Meth cd Of Mixing Concentrated Solution Described.

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 Washington, May 7-Investig gations for the purpose of encouraging or chardists in. tn C, preparation of lime sulphur concentrates for their own use or in the neighborhood have led to the wide use of this spray material, says the U. $. Department of Agricul- l ture Bulletin No 197. @Homennade Lime Sulphur rConcentrate.'' It is of relatively little importance except for economy in storage space how dense or heavy a. concentrated solution is made because it can be readily dilut- ed in conformity with the purpose for which it is to be used. To do this a Baume hydrometer Is used, the stem of which has a graduated scale When
 the hydr ro1neter is introduced into the concentrated lirne-su1pflur it sinks to varying depths according to the dens- ity of the liquid. In the experi-
 ments conducted. it was found the
 Baune hydrometer should register 33 to 34 degrees in the highly concen- trated solution, as later here describ- ed. A great variation in density, l from 25 to 31 degrees, of the ordin- l ary homemade product was recorded lin the experiments, where the usual 50-100-50 formula was used. The l amount of sediment left from the l lime and sulphur varied widely 3 5 to I 50 per cent. ! Making Concentrated Lime Sulphur on Small Scale.
 One of the homemade cooking 1 plants used in tpe experiments con- sisted of a. 12-horsepower boiler from j which steam was conducted into two l gallon barrels. No coils were used .l in the bottoms of the barrels, the steam being emitted through the open I end Of a straight pipe extending with I in a few inches Of the bottom of the 1 barrel. Small patches of the 50- l 1O0-50 formula, amounting to .25 gal 1 Ions of the finished product, were 'i cooked at a time. About 20 gallons I of water were put into the barrel, the T brought to the boiling point. The lI lime was then put in and after it had begun to slake the sulphur-was add l ed. The mixture was stirred thor
 ough1y throughout the time of cook ing which lasted an hour. It was then the clear solution was siphoned
 off. The s1udge or sediment was iput into a cider press and the clear solution pressed out using 1o-ounce
 canvas cloth for filter. In these ex-
 periments commercial ground sulphur
 and a good grade of lime was used
 The 50-1O0-50 formula, meaning 1 50 pounds of lime, 100 pounds of sul-
 phur and water to make 50 gallons of
 the concentrated solution, has gen.
 orally been recommended for the
 preparation of horne-boiied concen-
 trated 1ine-su1phur, solution. A
 good grade of fresh limestone, con- Il taining not less than 90 per cent. caI- l cium oxide, is necessary for the best results. Hydrated lime is sometimes
 used but it is necessary to obtain a
 good grade and at least 20 per cent
 more of this form of lime, as it con
 tains a high percentage of moisture Highly Concentrated Solution.
 A highly Concentrated solution may l be made, continues the bulletin, by
 using the lime and sulphur at the
 ratio of 1 to 2, but with reduced
 quantities of water. The fornu1a
 used in some of the commercial lime sulphur manufacturing plants is 8f | pounds of fresh stone-lime 16( pounds of commercial ground sulphur and water to make 0 gallons of the finished product. Solutions prepar. ed by this formula should test on ar average 8 to 34 degrees Baume, as , explained above, and there is about 5( } per cent. in volume of sfudge after allowing the solution to settle for 2z 5 hours. There is only about pei ! cent. to 10 per cent. in volume of in , soluble materials.
 Commercial ground sulphur may bt purchased in car lots for about $1.5t
 per 100 pounds and lime at abou ! oO CSHlS per pdFT91s making InS COS : of the highly concentrated solution estimating labor and fuel at TO cents
 about $3.30 per barrel of 50 gallons
 This does not include wear on outf1 : and cost of containers for storing. . At the prices of the ingredient U mentioned above, the high test con t centrate would cost about 98 cent e more per barrel than the low test con = centrate made by the 50-1Oe-50 for g muIa.
 $ Delegates from more than a dozel = states gathered At Louisville for tn g annual convention of the Amalganat lad ciati Irc, i,