Sulfur storage tanks are usually made of carbon steel, are insulated, and have systems to keep the temperature above 125 °C. Corrosion in sulfur storage tanks is a complex process and preventing corrosion involves paying attention to detail and proper system operation. The paper entitled "Preventing Corrosion in Sulfur Storage Tanks" by Peter D. Clark of Alberta Sulphur Research Ltd. and Department of Chemistry, The University of Calgary and David R. Hornbaker and Thomas C. Willingham of Controls Southeast, Inc. discusses this subject in detail.