Table 1. Chemical composition of raw...

Table 1.

Chemical composition of raw clays

Clay	SiO₂	Al₂O₃	TiO₂	MnO₂	Fe₂O₃	CaO	MgO	K₂O	Na₂O	SO₃	P₂O₅	LOI
B1	45.38	33.37	1.6	0.01	1.16	1.23	0.33	1.28	0.24	0.16	0.58	13.85
B2	33.95	30.84	2.06	0.06	16	0.32	1.04	0	0.73	0.01	0.1	14.69
C1	25.13	27.69	2.66	0.14	25.12	0.27	1.13	0	0.66	0.02	0.09	16.72
C2	47.90	25.47	1.12	0.04	8.44	0.59	1.82	1.1	0.77	1	0	10.18
C3	48.08	31.32	0.54	0.04	5.79	0.20	1.44	1.35	0.83	0.08	0.04	10.02
C4	54.79	28.4	1.75	0	2.31	0.25	1.34	1.3	0.88	0.12	0	8.5
D1	63.78	21.12	1.15	0.03	3.79	0.50	1.47	1.08	0	0.06	0	6.83

Clay	SiO₂	Al₂O₃	TiO₂	MnO₂	Fe₂O₃	CaO	MgO	K₂O	Na₂O	SO₃	P₂O₅	LOI
B1	45.38	33.37	1.6	0.01	1.16	1.23	0.33	1.28	0.24	0.16	0.58	13.85
B2	33.95	30.84	2.06	0.06	16	0.32	1.04	0	0.73	0.01	0.1	14.69
C1	25.13	27.69	2.66	0.14	25.12	0.27	1.13	0	0.66	0.02	0.09	16.72
C2	47.90	25.47	1.12	0.04	8.44	0.59	1.82	1.1	0.77	1	0	10.18
C3	48.08	31.32	0.54	0.04	5.79	0.20	1.44	1.35	0.83	0.08	0.04	10.02
C4	54.79	28.4	1.75	0	2.31	0.25	1.34	1.3	0.88	0.12	0	8.5
D1	63.78	21.12	1.15	0.03	3.79	0.50	1.47	1.08	0	0.06	0	6.83

Note:

SiO₂, silicon dioxide; Al₂O₃, aluminium oxide; TiO₂, titanium dioxide; MnO₂, manganese dioxide; Fe₂O₃, iron (III) oxide; CaO, calcium oxide; MgO, magnesium oxide; K₂O, potassium oxide; Na₂O, sodium oxide; SO₃, sulfur trioxide; P₂O₅, phosphorus pentoxide; LOI, loss on ignition

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