Nitric Acid
Nitric Acid / CAS : 7697-37-2
Appearance | Colorless Transparent Liquid | UN | 3264 |
HS | 28080000 | DG Class | 8 |
Synonyms | Azotic Acid; Nitro-Alcohol; Acidonitrico; Trans-Nitro Alcohol; Nitric acid 70%; Nitric acid Cas no 7697-37-2; HNO3; HONO2; Rfna; Natric acid 3L; HNO3 60% 68%; Nitric |
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Overview
Benefits
We have the leading product nitric acid with the 100000t double pressure nitric acid unit is the first nitric acid unit with a self-produced steam balance in China, and its technical level is in the leading position in China.
Specification
Composition | Standard | Analysis |
HNO3, % | ≥68 | 68.56 |
HNO2, % | ≤0.1 | 0.02 |
Ignition Residue | ≤0.01 | 0.001 |
CI | ≤4 ppm | <0.1 |
Fe | ≤4 ppm | 0.3 |
Pb | ≤0.1 ppm | 0.01 |
Arsenic | ≤3 ppm | 0.01 |
Gravity(2℃, Sp.Gr) | ≥1.405 | 1.408 |
Uses
Fertilizer industry: nitric acid is mainly used to make ammonium nitrate, calcium ammonium nitrate, phosphate nitrate fertilizer, nitrogen phosphorus potassium and other composite fertilizers.
Dye industry: nitric acid can be used in the synthesis of dye intermediates such as p-nitroanisole, 4,4 '- Dinitrodiphenyl ether, p-nitrophenol, and 2,5-dichloronitrobenzene.
Pharmaceutical industry: nitric acid can be used in the manufacture of Nitroacetophenone.
Electronic industry: nitric acid can be used to clean carbon steel, stainless steel, copper, carbon steel stainless steel, copper stainless steel welding combination equipment, etc.
Metallurgical Industry: nitric acid can be used to refine metals, i.e. to oxidize impure metals first to nitrate and exclude impurities before reduction. Nitric acid is corrosive to most metals, high concentrations of nitric acid blunt metals, and α- Fe2O3 and magnetic Fe3O4 have good solubility. Nitric acid is also used as an etching agent and strong acidic cleaning corrosion agent, which can be used in combination with glacial acetic acid, hydroxide, etc.
Area of water treatment: nitric acid can be used as a cleaning and rust remover for carbonaceous steels, stainless steel equipment, and during redox treatment of sewage, wastewater; Nitric acid can be used as a nitrogen source in microbial nutrients and so on during the biological process treatment of sewage.