6$6
DYEING AND CALICO PRINTING.
temperature, at which ioo parts of phenol yield, in six hours, 26 parts ofcorallin. From the mother-liquor 72 per cent of the oxalic acid employed canbe recovered, whilst the sulphuric acid is found to have totally disappeared.Commaille considers that yellow corallin is not, as commonly supposed, anacid, and that red corallin is not the amid of the yellow. The proportion ofoxalic acid employed is far too large. Corallin does not form definite metalliccompounds.
Hydrometer Tables.
Baume’s scale for liquids heavier than water is graduated from 0° to 72 0 . Itsrelation to diredt specific gravity is shown in the following table:—
0°
= 1-000
39 °
= I- 345
3
1-020
42
1-382
6
1-041
45
1-421
9
1-063
48
1-462
12
I- 086
51
1-505
15
1-109
54
I ' 55 I
18
i'i 34
57
i-600
21
i-160
60
1-652
24
I-I88
63
1-708
27
1-216
66
1-767
3 °
1-246
69
1-831
33
1-277
72
rgoo
36
1-310
The scale for liquids lighter than water extends from io° to 40°, the lowestnumber representing the specific gravity of water, and the higher ones thoseof lighter liquids.
10°
= I-000
n
°"993
12
0-986
13
0-980
14
0-973
15
0-967
16
0-960
17
°"954
18
0-948
19
0-942
20
0-936
21
0-930
22
0^924
23
0*918
24
0 * 9 I 3
25
0*907
26°
= o-goi
27
0'8g6
28
o-8go
29
0-885
30
o-88o
3 i
0-874
32
0'86g
33
0-864
34
0-859
35
0-854
36
0-849
37
0-844
38
0-839
39
0-834
40
0-830
Beck’s scale, for liquids heavier than water, runs from 1°, which is slightlyabove the specific gravity of water, to 70°. It is a most inconvenient scale.
i° = 1-0059
2 i-ong
3 i-oiSo
4 1-0241
1-03031-03661-04291 '°494
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