Product Overview

Nitric Acid 69.5% ACIPUR For Trace Metal Analysis (CAS No. 7697-37-2) is a concentrated aqueous mineral acid with strong proton-donating and oxidising behaviour. Its effectiveness in dissolving compatible metals, oxides, mineral matrices, and other inorganic materials makes it particularly valuable for converting samples into homogeneous acidic solutions before elemental measurement.

The ACIPUR grade is intended for trace metal analysis and related procedures where contamination introduced by the acid can affect analytical accuracy. Its controlled elemental impurity profile supports sample digestion, preparation of calibration and blank solutions, and acidification of samples for sensitive instrumental techniques used to determine metals at low concentrations.

Typical Applications

• Digestion of environmental, mineral, metallic, and industrial samples
• Preparation of samples for ICP-MS and ICP-OES analysis
• Acidification of solutions for atomic absorption spectrometry
• Preparation of reagent blanks, standards, and calibration solutions
• Preservation and stabilisation of aqueous samples before elemental analysis
• Cleaning and conditioning of compatible laboratory vessels used for trace-metal work

Common Synonyms

• Nitric Acid
• Hydrogen Nitrate
• Aqua Fortis

Storage Conditions

Store in the original, tightly closed, chemically compatible container in a cool, clean, and well-ventilated location. Protect the solution from direct light, excessive heat, and environmental contamination. Use clean, dedicated dispensing equipment and reseal the container immediately after use to preserve concentration and trace-metal purity.