Water
Water (H₂O) is a polar, protic solvent known for its high dielectric constant, hydrogen-bonding ability, and capacity to dissolve a wide range of polar and ionic substances. Often called the "universal solvent," it plays a fundamental role in both natural and laboratory systems.
In the lab, water is essential as a solvent, diluent, and cleaning agent. Deionized and ultrapure water are used in sensitive applications such as HPLC, LC-MS, and biological assays, while purified water supports reagent preparation, rinsing, and sterilization.
Water ASTM Type II, deionized distilled, Supelco®
Supplier: MilliporeSigma
Water, Deionized Distilled, ASTM Type II
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Water, HARLECO®, deionized distilled ASTM Type II, Sigma-Aldrich®
Supplier: MilliporeSigma
Deionized, Distilled Water, ASTM Type II
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Water ≥99.9% PFAS solvent tested according to EPA methods 533, 537.1 and 1633, LiChrosolv®, Supelco®
Supplier: MilliporeSigma
Water tested for 533, 537.1 and 1633 PFAS Methods LiChrosolv®
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Eau, clear, colorless, OmniSolv®, gradient grade, Supelco®
Supplier: MilliporeSigma
Meets reagent specifications for testing USP/NF monographs.
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Eau, Tracepur® for inorganic trace analysis, Supelco®
Supplier: MilliporeSigma
Eau, Tracepur® for inorganic trace analysis, Supelco®
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Eau, Ultrapur for trace metal analysis, Supelco®
Supplier: MilliporeSigma
Eau, Ultrapur for trace metal analysis, Supelco®
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Water, OmniSolv® LC-MS for LC-MS, Supelco®
Supplier: MilliporeSigma
Clear liquid. For use in HPLC gradient analysis, GC, and spectrophotometry. Filtered through a 0.2µm element for purity.
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Eau, OmniTrace Ultra™ for trace metal analysis, Supelco®
Supplier: MilliporeSigma
For low level trace metal analysis. Double-distilled and packaged in ISO Class 5 (FED-STD-209E Class 100/M3.5) cleanroom conditions. Meets ACS specifications for ultratrace purity. Product is double-distilled and packed in class 100 clean room conditions into preleached LDPE bottles. Certificate of Analysis supplied with each shipment.
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Eau, SupraSolv® for headspace gas chromatography, Supelco®
Supplier: MilliporeSigma
SupraSolv® solvents for headspace gas chromatography are developed particularly for the analysis of residual solvents in drug substances, excipients and drug products according to ICH, Ph Eur, and USP - SupraSolv® headspace solvents are tested for all residual solvents defined by the ICH.
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Eau, deionised
Supplier: Hach
Hach deionized (DI) water, which has had its minieral ions removed, is an essential ingredient in hundreds of applications.
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Water buffered (concentrate), pillow for dilution
Supplier: Hach
Buffered Dilution Water Pillows (magnesium chloride and potassium dihydrogen phosphate, makes 25 L dilution water; 1 liter per pillow).
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Water for molecular biology nuclease-, protease-free, low endotoxin, deionized, sterile
Supplier: QUALITY BIOLOGICAL, INC.
Molecular Biology Water is prepared by reverse osmosis, passed through fine carbon, deionized through two resin beds, and serially filtered through 0.1 µm positively charged membranes.
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Water DNase-, RNase-free
Supplier: Thermo Scientific Chemicals
High quality. RNase/DNase-free water is used in all molecular biology applications like PCR, DNA. Diethylpyrocarbonate (DEPC)-treated water is guaranteed nuclease-free (tested for both DNase and RNase) and is suitable for all RNA work.



