ANALYSIS OF SUBSTANCES 59 



KAINIT Average of 3 Analyses 



Moisture at 100 C 9.26 Magnesium oxide 8.97 



Potassium oxide 14.04 Sulfuric acid 21.05 



Sodium oxide 21.38 Chlorine 32.38 



Calcium oxide . . 1.12 Insoluble matter 0.89 



LAND-PLASTER OR GYPSUM 



Hydrated sulfate of lime 74.88 



Matters insoluble in acid 1.23 



Moisture 1.18 



Other matters, chiefly carbonate of lime 22.66 



ASHES (Woon), UNLEACHED 



Moisture at 100 C 15.72 



Calcium oxide 28.61 



Magnesium oxide 3.00 



Ferric oxide 1.03 



Potassium oxide 8.72 



Phosphoric acid 0.32 



Insoluble matter, before calcination 18.49 



Insoluble matter, after calcination 12.12 



ASHES (WOOD), LEACHED 



Moisture at 100 C * 13.72 



Calcium oxide 48.07 



Magnesium oxide 6.06 



Ferric oxide 0.68 



Potassium oxide 1.92 



Phosphoric acid . 1.79 



Insoluble matter, before calcination 5.49 



Insoluble matter, after calcination 2.57 



COAL ASHES, BITUMINOUS 



Water 5.0 Soda 0.4 



Organic substance 5.0 Magnesia 3.2 



Ash 95.0 Phosphoric acid 0.2 



Potash 0.4 Sulfuric acid 8.5 



COAL ASHES, ANTHRACITE 



Water 5.0 Soda 0.1 



Organic substance 5.0 Magnesia 3.0 



Ash 90.0 Phosphoric acid 0.1 



Potash 0.1 Sulfuric acid 5.0 



GAS-LIME Average of 4 Analyses 



Moisture at 100 C 22.28 Sulfur 20.73 



Calcium oxide 42.66 Insoluble matter 6.05 



