CAS No. 7732-18-5
A distilled water reactivity data sheet or deionized water MSDS may seem unnecessary—after all, what could be more harmless than purified water? But, though it’s usually not hazardous on its own, water can react dangerously with other substances found in research and laboratory settings. In some cases, it can react violently or exothermically, and may produce flammable or toxic byproducts.
To help you keep track of what chemicals and compounds can and can’t be safely mixed with distilled water and/or deionized water, NuGenTec offers SDS (safety data sheet) and MSDS (material safety data sheet) downloads.
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Distilled Water vs. Deionized Water
Distillation and deionization both remove ionic impurities, but distilled water and deionized water are not interchangeable. The purification processes leave different impurities behind, making each type of water suitable for different laboratory applications.
Distillation is a process used to demineralize water. In distillation, water is boiled, and the steam is collected and then cooled to return it to its liquid state. Salt, particulates, and most other impurities are left behind as the water turns to vapor, but some impurities, such as volatile organics and mercury, will vaporize along with the water.
In laboratory settings, distilled water is commonly used for:
- Equipment sterilization
- Calibration standard
- Solution preparation
- Analytical blank
- Cleaning glassware
- and more
Deionized water is purified by running water through a form of electrically charged resin, usually a mixed ion exchange bed containing both positive and negative charged resins. Deionizatio