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Boiler Water.pdf - The Jamaican Sugar Industry

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Scale/Deposit Formation<br />

• <strong>The</strong> primary reason for deposit and scale formation in steam generating systems<br />

is the fact that the solubility of many of the deposit forming salts decreases with<br />

an increase in temperature and concentrations. <strong>The</strong> water constituents usually<br />

responsible for these deposits are:<br />

Calcium (Ca)<br />

Bicarbonate (HCO3)<br />

Sulfate (SO4)<br />

Silicate (SiO2)<br />

Magnesium (Mg)<br />

Iron (Fe)<br />

Carbonate (CO3)<br />

Phosphate (PO4)<br />

Confidential and proprietary to Garratt-Callahan Company<br />

38

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