EDTA Solution N/10 (0.1N)

EDTA Solution N/10 (0.1N) is a standard laboratory reagent primarily used for complexometric titrations to determine concentrations of metal ions such as calcium and magnesium, commonly in water analysis and other chemical assays.​

Properties

Concentration: 0.1N (N/10), typically corresponding to 0.025M EDTA solution.​

Appearance: Clear, colorless, odorless liquid.​

pH of 5% aqueous solution: 4–5.​

Water miscible; stable under normal laboratory conditions; non-hazardous and not classified as a carcinogen.​

Uses

Used in volumetric (complexometric) analysis, especially with indicators like Eriochrome Black T to measure hardness (Ca²⁺ and Mg²⁺ ions) in water.​

Applied in analytical, environmental, clinical, and food chemistry for ion quantification.​

Handling and Storage

Should be kept tightly closed, away from direct sunlight to ensure solution stability.​

Considered safe under proper usage conditions for professional laboratory and industrial work.​

EDTA N/10 (0.1N) is essential for precise and reproducible metal ion analysis in diverse scientific and industrial laboratories.