COMPOSITION OF LIME-SULPHUR ANIMAL DIPS. 5 



Table 2. — Composition in grams per 100 c. c. (" per cent ") and ratios of stored 

 concentrates prepared under varying formulas and conditions. 



6 



1 

 S 

 ft 

 X 



H 



d 

 J 



p. 

 © 



3° ' 



Bod 



£l o3 



a 



'8 



a 



Eh 



o3 . 



Si 



3 ft 



3 



Eh 



1 

 ft 



m 

 W 



1 



o 



11 



03 



"S 



Eh 



1 



f 



"o 

 Ph 



2 

 ft • 



HI 



r- ft 



o 

 Eh 



3 

 ft 

 "3 



o 



Eh 



PI 



%P 



<s 

 o 



EH 



So 



02 

 "oS 



o 





03 

 03 CO 



d 



02 



a 



3 



4 



5 



f A 



B 



\ c 



I E 



u 

 {? 



40:100:513 

 45:100:514 



47.5:100:515 

 50:100:516 

 60:100:519 

 45:100:514 

 45:100:514 



45:100:1014 

 45:100:264 



Hours. 



1 



1 



1 



1 



1 



. 5 

 .25 

 . 75 

 .5+ 



3.02 

 3.26 

 3.52 

 3.54 

 3.56 

 3.29 

 3.01 

 1.77 

 2.38 



0.04 

 .05 

 .02 

 .02 

 .02 

 .02 

 .00 

 .05 

 .03 



2.73 

 3.04 

 3.16 

 3.33 

 3.22 

 3.01 

 2.73 

 1.61 

 5.63 



10.43 

 11.67 

 11. 39 

 11.20 

 10.73 

 11.75 

 10.40 

 6.10 

 21.20 



13.16 

 14.71 



14.55 

 14.53 

 13.95 

 14.76 

 13.13 

 7.71 

 26.83 



16,18 



17.97 

 18.07 

 18.07 

 17.51 

 18.05 

 16.14 

 9.48 

 29.21 



7.35 

 8.09 

 8.57 

 8.89 

 8.70 

 8.12 

 7.41 

 4.37 

 11.94 



0.454 

 .450 

 .474 

 .492 

 .508 

 .450 

 .459 

 .461 

 .409 



4.82 

 4.84 

 4.60 

 4.36 

 4.33 

 4.90 

 4.81 

 4.79 

 4.77 



1.81 

 1.86 

 1.80 

 1.88 

 1.80 

 1.83 

 1.81 

 1.82 

 4.74 



a Estimated by calculation from the results .for the various forms of sulphur — not by direct deter- 

 mination. 



The figures for hydrogen sulphid sulphur in themselves possess 

 little significance from a quantitative point of view, the exact amount 

 present depending upon variable factors. But the figures can be 

 .utilized to obtain a nearer approximation to the value of x in CaS x 

 than given in the table for the value in M 2 S X . If this form, of sul- 

 phur is present only as free hydrogen sulphid, then the value for x in 

 CaS x of Preparation B becomes 4.92, while if all hydrogen sulphid 

 is present as calcium hydrosulphid the value of x is raised to exactly 

 5.00. All the other preparations under Experiment 1 naturally give 

 lower values. 



The next undertaking was to determine the effect of varying the 

 period of boiling. 



EFFECT OF VARYING PERIOD OF BOILING. 



EXPERIMENT 4. 



Using the formula 45 : 100 : 514, which had shown the best utilization of both 

 lime and sulphur in Experiment 3, concentrates were prepared, diluted, and 

 analyzed exactly as described under Experiment 3, except in the period of 

 boiling. The results are given in Table 2. With Preparations F and G is also 

 to be included Preparation B, under Experiment 3, as the first member of the 

 series. 



Under the conditions of Experiment 4, boiling for D.5 hour and for 

 one hour produced practically identical results; that is, boiling for 

 the shorter period appeared to produce as complete and perfect a 

 reaction as possible, while boiling for a further half hour seemed to 

 effect no material injury. The higher value for x in M 2 S X shown 

 after 0.5 hour boiling is chiefly due to the less amount of hydrogen 

 sulphid which happened to be present. Assuming free H 2 S the value 

 of x in CaS x is 4.94, and assuming Ca(SH) 2 it is 4.98. 



