DENSITY AND STRENGTH OF SULPHURIC ACID (SIDERSKY).

Degrees Twaddell.	Sp. Gr. at 15° C.	% of pure acid (H₂SO₄).	Equivalent (in cc.) of a kilo of pure acid.	Equivalent (in cc.) of a liter of pure acid.
1	1.007	1.9	52.620	96.930
3	1.014	2.8	35.710	66.450
4	1.022	3.8	25.650	47.230
6	1.029	4.8	20.410	37.582
8	1.037	5.8	16.670	30.690
9	1.045	6.8	14.085	25.938
10	1.052	7.8	12.198	22.460
12	1.062	8.8	10.755	19.803
13	1.067	9.8	9.524	17.540
15	1.075	10.9	8.547	15.740
17	1.083	11.9	7.752	14.278
18	1.091	13.0	7.042	12.969
20	1.100	14.1	6.452	11.882
22	1.108	15.2	5.953	10.962
23	1.116	16.2	5.526	10.177
25	1.125	17.3	5.405	9.954
27	1.134	18.5	4.76	8.770
29	1.142	19.6	4.465	8.223
30	1.152	20.8	4.184	7.723
32	1.162	22.2	3.876	7.138
34	1.171	23.3	3.663	6.745
36	1.180	24.5	3.541	6.521
38	1.190	25.8	3.258	5.999
40	1.200	27.1	3.077	5.666
42	1.210	28.4	2.907	5.353
44	1.220	29.6	2.770	5.102
46	1.231	31.0	2.618	4.865
48	1.241	32.2	2.500	4.604
50	1.252	33.4	2.392	4.406
53	1.263	34.7	2.283	4.205
55	1.274	36.0	2.179	4.012
57	1.285	37.4	2.079	3.829
60	1.297	38.8	1.988	3.661
62	1.308	40.2	1.905	3.508
64	1.320	41.6	1.821	3.354
66	1.332	43.0	1.745	3.214
69	1.345	44.4	1.665	3.085
71	1.357	45.5	1.621	2.985
74	1.370	46.9	1.558	2.869
77	1.383	48.3	1.497	2.757
80	1.397	49.8	1.436	2.646
82	1.410	51.2	1.386	2.551
85	1.424	52.6	1.335	2.459
88	1.438	54.0	1.287	2.370
91	1.453	55.4	1.237	2.270
94	1.468	56.9	1.195	2.200
97	1.483	58.3	1.156	2.130
100	1.498	59.6	1.116	2.050
103	1.514	61.0	1.080	1.980
106	1.530	62.5	1.045	1.930
108	1.540	64.0	1.010	1.860
113	1.563	65.5	0.975	1.800
116	1.580	67.0	0.950	1.740
120	1.597	68.6	0.917	1.690
123	1.615	70.0	0.888	1.630
127	1.634	71.6	0.855	1.570
130	1.652	73.2	0.845	1.520
134	1.671	74.7	0.800	1.470
138	1.691	76.4	0.774	1.430
142	1.711	78.1	0.749	1.390
146	1.732	79.9	0.722	1.320
151	1.753	81.7	0.705	1.280
155	1.774	84.1	0.672	1.235
160	1.798	86.5	0.639	1.190
164	1.819	89.7	0.609	1.120
168	1.842	100.0	0.544	1.000