Chemical Composition

% Composition of RHA at 500˚C Calcinating Temperature

% Composition of RHA at 600˚C Calcinating Temperature

% Composition of RHA at 700˚C Calcinating Temperature

Silicon Oxide

71.80

74.50

74.48

Aluminum Oxide

3.28

2.34

3.47

Ferric oxide

1.72

1.08

1.82

Titanium oxide

0.30

0.29

0.31

Calcium oxide

4.84

2.84

3.62

Lead oxide

9.61

7.63

8.03

Magnesium oxide

0.58

0.62

2.10

Manganese oxide

0.16

0.51

0.81

Chromium oxide

0.41

0.32

0.32

Sodium Oxide

0.11

-

0.03

Potassium Oxide

5.20

3.65

3.67

Sulphide

0.18

0.38

0.18

Loss on Ignition

-

0.82

3.24