Dictionary SubstancesChemical CompoundDemi Water Demi Water Last updated: August 28, 2016 What Does Demi Water Mean? Demi water is an abbreviated name for demineralized water, which is water that has had all minerals, salts and ions removed. Demi water is also known as demineralized water. Advertisement Corrosionpedia Explains Demi Water Demi water is useful for applications where water with low salt and conductivity properties are required. Due to the significantly low rate of conductivity, demi water is ideal for use in metallic equipment applications that are prone to corrosion. The lack of ions prevent oxygen from reacting with the metal surface to form corrosion or rust. Advertisement Share This Term> Related Terms Rust Rust Spotting Demineralization Oxygen Concentration Cell Corrosion Inhibitor Distilled Water Related Reading An Introduction to the Galvanic Series: Galvanic Compatibility and Corrosion Corrosion Costs & Recommended Practices for the Water Industry An Expert Guide To Accurate Cathodic Protection Measurements Leveraging AI for Enhanced Corrosion Control in Oil Pipelines Corrosion Jobs: How to Become a Corrosion Technician in 2023 The 6 Corrosive Components That Can Be Found in Crude Oil Tags Materials Selection Corrosion Markets Corrosion Inhibitors Scientific Properties Substances Substances Chemical Property Chemical Compound Inorganic Compound Water and Wastewater Trending Articles Corrosion An Introduction to the Galvanic Series: Galvanic Compatibility and Corrosion Chemical Compound 5 Most Common Types of Metal Coatings that Everyone Should Know About Asset Management Understanding Aluminum Corrosion Asset Management If Copper is a Noble Metal then Why Are My Pipes Corroding?