Page 355 - Corrosion Engineering Principles and Practice

Brucite Silica A b A b Observation T a No scale observed 0.25 0.20 <0.001 Basin buildup 0.09 0.06 0.02 Heavy scale 0.12 0.10 0.12 Valve scale 0.16 0.13 0.55 Condenser tube scale 0.35 0.21 0.46 No scale observed 0.49 0.35 0.73 No scale observed 0.52 0.40 0.17 No scale observe

<0.001
T a 0.82 2.4 1.3 3.0 5.3 10 53 10 7.4 4.6 254 7.6

0.02
A b 5.4 611 50 72 51 28 26 6.5 62 74 37 65 Theoretical vs. Actual Recirculating Water Saturation Level
Calcite

T a 0.03 49 89 106 240 540 598 794 809 1198 1670 3420 7634

System (Category) 1 (1) 2 (2) 3 (2) 4 (2) 5 (3) 6 (3) 7 (3) 8 (3) 9 (3) 10 (3) 11 (3) 12 (3) 13 (3) T a = theoretical (ppm) A b = actual (ppm) TABLE 8.20

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