Sulphuric Acid on the WebTM	Technology Manual	DKL Engineering, Inc.

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Knowledge for the Sulphuric Acid Industry

Introduction
General
Definitions
Instrumentation
Plant Safety
Metallurgial Processes
Metallurgical
Sulphur Burning
Acid Regeneration
Lead Chamber
Technology
Gas Cleaning
Contact
Strong Acid
Acid Storage
Loading/Unloading
Transportation
Sulphur Systems
Liquid SO₂
Boiler Feed Water
Steam Systems
Cooling Water
Effluent Treatment
Utilities
Construction
Maintenance
Inspection
Analytical Procedures
Materials of Construction
Corrosion
Properties
Vendor Data

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Corrosion - Hastelloy D-205
September 29, 2004

Corrosion Rates
Reagent Grade Sulphuric Acid at 93°C Corrosion Rates 20% to 60% H2SO4
Commercial Grade Sulphuric Acid at 130°C Corrosion Rates 96% to 99% H2SO4

Other Data

99% H₂SO₄, 130°C: 0.7 mpy corrosion rate

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