Table showing the analyses of the most important ores and iron of Sweden-Continued. Percentages of constituents. Percentages of constituents of earthy matters. Sulphur. Natorp* 1860 A. F. Groth.. 47. 1 65. 1 34.9 0.016 (0.07) 57.5 2.8 32.1 7.1 0.5 31.2-12. 1-2.6 Other matter. Silica. Alumina, 47. 1 18.5 1.9 11.6 0.5 Ti: 20 4 a The parenthesis signifies that the analysis for the per cent. of sulphur or phosphorus is made with the regulus of cast-iron, obtained in the small crucible of Sefstrom's furnace. b Other specimens contain more manganese. Lime. Magnesia. Manganese. and alumina divided by oxygen of the bases. Oxygen of silicic acid of lime or of quartz for the fusion in per Quantity of carbonate cent. of the ore. |