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                                    ZAL R. KOTHAVALLA, J. S. BHALLA & N. D. LAVANGIA                                       9

                                                                              TABLE VI

             Freezing point value as affected by presence in milk of saturated solution of mercuric chloride

Amount
of
HgCl2 per
100 ml. of
milk

Fresh
milk

1st
day

2nd
day

3rd
day

4th
day

5th
day

6th
day

7th
day

8th
day

9th
day

10th
day

11th
day

12th
day

13th
day

14th
day

15th
day

16th
day

Min.
temp.

72

71

74

72

70

68

70

70

69

71

72

72

72

73

74

73

Max.
temp.

86

89

87

84

83

82

80

82

82

89

82

80

78

80

80

78

F. P. °C

2 drops .

.535
(.16)

.535
(.16)

..
(.44)

4 drops .

.535
(.16)

.535
(.16)

.535
(.17)

.535
(.18)

...
(.36)

½ c.c. .

.535
(.16)

.535
(.17)

.535
(.18)

.585
(.18)

.540
(.19)

.545
(.20)

.545
(.20)

...
(.31)

¾ c.c. .

.535
(.16)

.535
(.18)

.540
(.19)

.540
(.19)

.540
(.19)

.545
(.20)

.545
(.20)

.545
(.20)

.545
(.20)

.545
(.20)

.545
(.20)

...
(.35)

1 c.c. .

.535
(.16)

.540
(.19)

.540
(.20)

.540
(.20)

.540
(.20)

.540
(.20)

.540
(.20)

.540
(.20)

.540
(.20)

.540
(.20)

.545
(.21)

.550
(.22)

...
(.30)

2 c.c. .

.535
(.16)

.540
(.23)

.540
(.23)

.540
(.24)

.540
(.24)

.540
(.25)

.540
(.25)

.540
(.25)

.540
(.25)

.540
(.22)

.540
(.22)

.540
(.28)

.540
(.24)

.540
(.24)

.540
(.25)

...
(.27)

...
(.30)

3 c.c. .

.535
(.16)

.540
(.24)

.540
(.24)

.540
(.25)

.540
(.25)

.540
(.26)

.540
(.26)

.540
(.24)

.540
(.24)

.540
(.22)

.540
(.23)

.540
(.24)

.540
(.24)

.540
(.25)

.540
(.25)

.540
(.25)

.540
(.28)

5 c.c. .

.540
(.11)

.545
(.27)

.545
(.27)

.545
(.27)

.545
(.27)

N. B.—Results in brackets are the actual acidities as percentages of lactic acid.

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