APPENDIX D.
Reading edition
TABLE OF STRENGTH OF CAUSTIC POTASH SOLUTIONS AT 60° F.
Specific gravity. Degrees Twaddell. Per cent. KOH. Lb. of KOH per gal.
1.060 12 5.59 0.59
1.110 22 11.31 1.25
1.150 30 15.48 1.77
1.190 38 19.29 2.21
1.230 46 23.22 2.84
1.280 56 27.87 3.56
1.330 66 31.32 4.16
1.360 72 35.01 4.76
1.390 78 38.59 5.36
1.420 84 40.97 5.81
1.440 88 43.83 6.31
1.470 94 47.16 6.93
1.520 104 51.09 7.76
1.600 112 55.62 8.89
1.680 136 60.98 10.24
1.780 156 67.65 12.04
1.880 176 75.74 14.23
2.000 200 86.22 17.24
(From Soaps, by G. H. Hurst, published by Scott, Greenwood & Son.)