60. Table for reducing the strength of Alcohol

60. Table for reducing the strength of Alcohol. The following Table given by Booth, shows the quantity of water that must be added to alcohol of a given strength, in order to produce an alcohol of inferior strength.

The upper horizontal column contains the percentage of strength of the stronger alcohol to be diluted; the vertical columns below, denote the volumes of water which must be added to 100 volumes of it, in order to produce a spirit of the strength indicated in the left hand column.

Desired strength in per cent.

90

85

80

75

70

65

60

55-

50

85

6.56

                

80

13.79

6.83

              

75

21.89

14.48

7.20

            

70

31.05

23.14

15.35

7.64

          

65

41.53

33.03

24.66

16-37

8.15

        

60

53.65

44.48

35.44

26-47

17.58

8.56

      

55

67.87

57.90

48.07

38.32

28.63

19.02

9.47

    

50

84.71

73.90

63.04

52.43

41.73

31.25

20.47

10.35

  

45

105.34

93.30

81.38

69.54

57.78

46.09

34.46

22.90

11.41

40

130.80

117.34

104.01

90.76

77.58

64.48

51.43

38.46

25.55

35

163.28

148.01

132.88

117.82

102.84

87.93

73.08

58.31

43.59

30

206.22

188.57

171.05

153.61

136.04

118.94

101.71

84.54

67.45

25

266.12

2-15-15

224.30

203.53

182.83

162.21

141.65

121.16

100.73

20

355.80

329.84

304.01

278.26

252.58

226.98

201.43

175.96

150.55

15

505.27

471.

436.85

402.81

368.83

334.91

301.07

267.29

233.64

10

804.54

753.65

702.89

752-21

| 601.60

551.06

500.59

450.19

399.85

Illustration. If we have alcohol of 70 per cent, strength, and desire to reduce its strength to 40 per cent. - we look for 40 in the left-hand column, and the figures on a line with it in the column headed 70, we find to be 77.58. This shows that we must add 77.58, or a trifle over 771/2 gallons of water to 100 gallons of our 70 per cent, alcohol, to produce a spirit of 40 per cent, strength.