Product Overview

Potassium Nitrite Crystals 96% AR/ACS (CAS No. 7758-09-0) is crystalline potassium nitrite, an inorganic source of nitrite ion for analytical and controlled reaction systems. Nitrite undergoes characteristic diazotisation, nitrosation and redox chemistry and may be quantified or used as a reagent through spectrophotometric and other conventional analytical procedures. The crystalline designation identifies the physical form of this catalogue entry without implying a different chemical identity.

The AR/ACS grade is intended for analytical reagent preparation, non-certified nitrite working solutions, method development and laboratory QC.

Typical Applications

• Preparation of non-certified nitrite reagent and working solutions.
• Analytical nitrate/nitrite procedure development using potassium nitrite solutions.
• Diazotisation-based colorimetric and spectrophotometric chemistry.
• Redox and reaction-kinetic studies involving nitrite ions.
• Preparation of nitrite-containing solutions for specialised analytical procedures.
• Laboratory QC and verification of nitrite-sensitive analytical methods.

Common Synonyms

• Nitrous acid potassium salt
• Potassium nitrite(III)

Storage Conditions

Store the crystals tightly closed and dry, minimising prolonged atmospheric exposure and contamination. Use clean dispensing tools for analytical work so that extraneous nitrate, oxidants, reductants or other ionic contaminants do not alter reagent blanks or nitrite response.