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Nitric acid is a liquid with an acrid, pungent and suffocating odor. There are different concentrations of nitric acid available, and they are colorless, yellow or red accordingly. The industrial
grade is about 68% in water, commercial grade is between 52% and 68%, fuming nitric acid is 86% or higher, while concentrations above 95% are called white fuming or red fuming nitric acid.
Assay 69.0 - 70.5 %
Vapor Pressure 8 mmHg ( 20 °C)
Boiling point 122 °C
Freezing point -38 °C
Density (D 20/4) 1.390 - 1.415
Silver (Ag) max. 0.5 ppb
Aluminium (Al) max. 5 ppb