Product Overview

Water AR (CAS No. 7732-18-5) is analytical-reagent water intended as a solvent and reagent medium for conventional laboratory chemistry. Water’s polarity, hydrogen-bonding capability and ability to solvate ions make it the principal medium for acid–base, precipitation, titrimetric and numerous other wet-chemical procedures. The AR designation indicates suitability for analytical reagent use but does not itself define unprovided numerical conductivity, resistivity, organic-carbon or trace-ion limits.

The AR grade is intended for conventional analytical reagent preparation, sample dilution, blanks and routine wet chemistry. Its role centres on providing a clean aqueous medium for acid–base, precipitation, titrimetric and general analytical laboratory procedures.

Typical Applications

• Preparation of analytical reagent solutions.
• Sample dilution in conventional wet chemistry.
• Acid–base, titrimetric and precipitation procedures.
• Preparation of laboratory blanks.
• Washing and final rinsing in analytical workflows where appropriate.
• General solution and reagent preparation.

Common Synonyms

• Aqua
• Dihydrogen monoxide
• Dihydrogen oxide
• Oxidane

Storage Conditions

Keep tightly closed and protect from ionic, particulate, organic and microbiological contamination during storage and dispensing. Use clean dedicated containers and dispensing practices appropriate to analytical work.