Acids & Salts Available to Source

Nitric Acid 67% 42 Baume Tech

HNO3
CAS 7697-37-2 · MF HNO3 · MW 63.013 g/mol · UN 2031 (NITRIC ACID, OTHER THAN RED FUMING)

Strong oxidizing acid used for etching and cleaning in industrial applications.

SDS / TDS Download
CAS Number
7697-37-2
Molecular Formula
HNO3
Molecular Weight
63.013 g/mol
Material Family
Acids & Salts
Functional Roles
Physical Properties
melting_point
-44 u00b0F (NIOSH, 2024)
boiling_point
181 u00b0F at 760 mmHg (NIOSH, 2024)
density
1.5 at 77 u00b0F (NIOSH, 2024) - Denser than water; will sink
solubility
Miscible (NIOSH, 2024)
vapor_pressure
48 mmHg (NIOSH, 2024)
GHS / SDS Safety Danger
Acute Toxic Environmental Hazard Oxidizer Health Hazard Corrosive
  • H331: Toxic if inhaled [Danger Acute toxicity, inhalation]
  • H314 (> 99.9%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
  • H272 (98.6%): May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]
  • H272: May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]
  • H290 (100%): May be corrosive to metals [Warning Corrosive to Metals]
  • H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
  • H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
  • H331 (11.9%): Toxic if inhaled [Danger Acute toxicity, inhalation]
  • H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
  • H290: May be corrosive to metals [Warning Corrosive to Metals]
  • H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H290 (18.9%): May be corrosive to metals [Warning Corrosive to Metals]
  • H318 (17.5%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
  • H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H304: May be fatal if swallowed and enters airways [Danger Aspiration hazard]
  • H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
Chemical Identity
CAS Number7697-37-2
IUPAC Namenitric acid
InChI KeyGRYLNZFGIOXLOG-UHFFFAOYSA-N
PubChem CID 944
Synonyms & Trade Names
NITRIC ACID Azotic acid Aqua fortis Salpetersaeure Nital Acide nitrique Acidum nitricum Nitricum acidum Nitrous fumes Nitryl hydroxide Engraver's acid Salpetersaure RFNA Acido nitrico
Full Description

Strong oxidizing acid used for etching and cleaning in industrial applications.