Water purity is critical in laboratories, healthcare, and industrial processes. While both distilled water and deionized water are purified, they’re not identical. Distilled water is created through boiling and condensation, removing most impurities including bacteria. Deionized water, on the other hand, passes through ion-exchange resins that remove mineral ions like calcium, magnesium, and chloride.

• How Distilled Water Is Made — The distillation process and purity level
• How Deionized Water Is Made — Ion exchange and conductivity levels
• Key Differences in Usage — When to use each type in labs or industries
• Which Type Is Right for You? — Guidance for lab and industrial applications

For labs and facilities that depend on consistent water quality, UN Chemicals Network offers reliable distilled and deionized water solutions meeting international purity standards.