CAS Number 7732-18-5 Molecular Formula H2O Formula Weight 18.02 Synonyms Aqua, Deionized Water, Dihydrogen Oxide, Dihydrogen Monoxide, Purified water PubChem CID 962 Grade Laboratory Grade Percent Purity 100% Chemical Name or Material Water Description Deionized or DI water is free from dissolved minerals such as mineral salts, including iron, calcium, and sulfate. It is also termed ASTM D 1193 Type IV water and differs from distilled water in terms of purification methods and composition. It is safe for human use but is unfit for drinking purposes because of the absence of essential nutrients required by the human body. Our premium quality Deionized Water is highly recommended for educational and research labs to obtain consistent and repetitive results. Due to the presence of impurities, it is not recommended for use in foods, drugs, and medicines. Assuming the source water was tap
CAS Number
7732-18-5
Molecular Formula
H2O
Formula Weight
18.02
Synonyms
Aqua, Deionized Water, Dihydrogen Oxide, Dihydrogen Monoxide, Purified water
PubChem CID
962
Grade
Laboratory Grade
Percent Purity
100%
Chemical Name or Material
Water
Description
Deionized or DI water is free from dissolved minerals such as mineral salts, including iron, calcium, and sulfate. It is also termed ASTM D 1193 Type IV water and differs from distilled water in terms of purification methods and composition. It is safe for human use but is unfit for drinking purposes because of the absence of essential nutrients required by the human body. Our premium quality Deionized Water is highly recommended for educational and research labs to obtain consistent and repetitive results. Due to the presence of impurities, it is not recommended for use in foods, drugs, and medicines.
Assuming the source water was tap or spring water, distilled water is pure enough for nearly all lab applications. It is used for:
a solvent to prepare a solution
analytical blank
calibration standard
cleaning glassware
equipment sterilization
making high purity water
The purity of deionized water depends on the source water. Deionized water is used when a soft solvent is needed. It is used for:
cooling applications where it's important to avoid depositing minerals
microbiology autoclaves
many chemistry experiments involving ionic compounds
washing glassware, especially the final rinse
solvent preparation
analytical blanks
calibration standards
in batteries
As you can see, in some situations either distilled or deionized water is fine to use. Because it is corrosive, deionized water is not used in situations involving long-term contact with metals.
Specifications
Deionized Water, Lab Grade Features:
Appearance
Colorless liquid
Pass
Electrical Conductivity
Max 5 µS/cm @25°C
<5
Electrical Resistivity
Min 0.2 MΩ.cm @25°C
<0.2
pH
5 - 8 @25°C
Pass
Sodium
Max 50 µg/L
<50
Chlorides
Max 50 µg/L
<50
Applications
Common Uses
Solvent
Buffer solution
pH solution
Commercial/Industrial Applications
Batteries
Automobile engine coolant
Safety and Handling
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If you have questions about ordering deionized water in bulk online here at or would like to place an order, call 512-668-9918 or email customerservice@ to talk with a Deionized Water Specialist. Lab Alley is a wholesale supplier and distributor of deionized water based in Austin, Texas.
Biotechnology-grade Deionized Water is treated to remove all dissolved mineral salt ions. It comes in a 1 liter bottle. Often used where very pure
Deionized Water, 1L - Biotechnology (Reagent) Grade - Demineralized - The Curated Chemical Collection by Innovating Science
Deionized Water, 3.8L (1 Gallon) - Biotechnology (Reagent) Grade - Demineralized - IS13000 - The Curated Chemical Collection by Innovating Science: : Industrial & Scientific
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Deionized Water, 3.8L (1 Gallon) - Biotechnology (Reagent) Grade - Demineralized - IS13000 - The Curated Chemical Collection by Innovating Science: : Industrial & Scientific
Deionized Water, 3.8L (1 Gallon) - Biotechnology (Reagent) Grade - Demineralized - IS13000 - The Curated Chemical Collection by Innovating Science: : Industrial & Scientific
Deionized Water for Sale Buy Deionized Water Gallons & Bulk
Syn: Hydrogen oxide Formula: H2O F.W.: 18.01 CAS: 7732-18-5 Characteristic: Clear, colorless liquid Notes: Ideal for making aqueous solutions Storage
Water, Deionized, Reagent Grade, 3.8 L
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