nitric acid

CAS No.: 7697-37-2
Formula: HNO3
Exact Mass: 62.99560
Molecular Weight: 63.01280
PSA: 66.05000
LogP: 0.17550
Description Feedback
Nitric acid (HNO3), also known as aqua fortis and spirit of niter, is a highly corrosive mineral acid.
The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. Most commercially available nitric acid has a concentration of 68% in water. When the solution contains more than 86% HNO3, it is referred to as fuming nitric acid. Depending on the amount of nitrogen dioxide present, fuming nitric acid is further characterized as white fuming nitric acid or red fuming nitric acid, at concentrations above 95%.
Nitric acid is the primary reagent used for nitration – the addition of a nitro group, typically to an organic molecule. While some resulting nitro compounds are shock- and thermally-sensitive explosives, a few are stable enough to be used in munitions and demolition, while others are still more stable and used as pigments in inks and dyes. Nitric acid is also commonly used as a strong oxidizing agent.

Properties Feedback
Appearance & Physical State:Colourless clear liquid
Melting Point:-42ºC
Boiling Point:122ºC
Flash Point:120.5ºC
Water Solubility:>100 g/100 mL (20 ºC)
Storage Condition:2-8ºC
Vapor Pressure:8 mm Hg ( 20 °C)
Vapor Density:1 (vs air)

Safety Info Feedback


hazard declaration:H272; H290; H311 + H331; H314
hazard declaration add:Corrosive to the respiratory tract.
waring notice:P210; P220; P280; P303 + P361 + P353; P304 + P340 + P310; P305 + P351 + P338
Hazard Class:8
Safety Statements:S23-S26-S36-S45
HS Code:2808000090
Packing Group:II
WGK Germany:1
RIDADR:UN 3264 8/PG 3
Risk Statements:R8; R35
Hazard Codes:C


Precursor and Product