Nitric Acid, Fuming

Name:
Nitric Acid, Fuming
Detailed information:
(1) White fuming nitric acid (WFNA) contains more than 97.5% nitric acid, less than 2% water, and less than 0.5% NO_x. It is a colorless or pale-yellow liquid that fumes strongly. It is decomposed by light or elevated temperatures, becoming red in color from nitrogen dioxide. (2) Red fuming nitric acid (RFNA) contains more than 85% nitric acid, approximately 6–15% NO_x (as nitrogen dioxide), and less than 5% water.

Derivation:

From dilute nitric acid, nitrogen dioxide, and oxygen.

Hazard:

Toxic by inhalation, corrosive to skin and mucous membranes. Strong oxidizing agent, may explode in contact with strong reducing agents. Dangerous fire risk.

Use:

Preparation of nitro compounds, rocket fuels, laboratory reagent.