Product Overview

Sulphuric Acid ⅔N Solution (CAS No. 7664-93-9) is a prepared sulphuric-acid solution supplied at the stated two-thirds-normal acid-equivalent concentration. The defined normality provides a controlled source of acidity for titration, neutralisation, sample treatment and reagent preparation. Because the catalogue product is a formulated solution, its identity includes the stated normality rather than only the chemical identity of sulphuric acid.

The ⅔N solution is intended for analytical acidification, titrimetric procedures, reagent preparation and laboratory methods requiring sulphuric acid at the stated normality. Its prepared solution form supports reproducible use in routine wet chemistry and quality-control work.

Typical Applications

• Acid–base titration procedures specifying ⅔N sulphuric acid.
• Neutralisation of compatible alkaline samples and reagents.
• Preparation of defined acidic analytical media.
• Sample acidification and wet-chemical treatment.
• Laboratory reagent formulation requiring the stated normality.
• Method development and QC involving controlled acid equivalents.

Common Synonyms

• Two-thirds normal sulphuric acid
• ⅔ N sulfuric acid solution

Storage Conditions

Keep tightly closed to minimise evaporation, contamination and concentration drift during storage. Use clean analytical dispensing practices to maintain reproducible acid-equivalent concentration.