Description

Nitric Acid CAS NO 7697-37-2 is a highly corrosive and strong mineral acid with powerful oxidizing properties. It is a critical industrial chemical essential for the production of fertilizers, explosives, and a wide range of organic and inorganic compounds. This versatile reagent is indispensable in sectors including chemical manufacturing, metallurgy, electronics, and laboratory research for applications such as metal etching, nitration reactions, and analytical procedures.

Application

• Fertilizer Production: Primary raw material for manufacturing ammonium nitrate, a key nitrogen-based fertilizer.
• Chemical Synthesis & Nitration: Crucial reagent for producing nitro compounds, including explosives (e.g., TNT, nitroglycerin) and intermediates for dyes, pharmaceuticals, and plastics.
• Metallurgy & Metal Processing: Used for pickling, passivating, and etching metals like stainless steel, as well as in the purification and extraction of precious metals (e.g., gold, platinum).
• Electronics Industry: Essential for wafer cleaning and etching in semiconductor and printed circuit board (PCB) fabrication.
• Laboratory & Analytical Chemistry: Serves as a strong acid and oxidizing agent in digestions, titrations, and various analytical methods.
• Rocket Propellant: Used as an oxidizer in certain liquid-propellant rocket fuel formulations.
• Wastewater Treatment: Employed for pH adjustment and as an oxidizing agent in specific treatment processes.

Basic Information

Item	Details
Product Name	Nitric Acid
CAS No.	7697-37-2
Molecular Formula	HNO₃
Molecular Weight	63.01 g/mol
Synonyms	Aqua Fortis; Hydrogen Nitrate; Azotic Acid; Engraver's Acid; Nitryl Hydroxide; RFNA (Red Fuming Nitric Acid); WFNA (White Fuming Nitric Acid); Spirit of Niter
EINECS	231-714-2

Quality Control

Our Nitric Acid is manufactured under stringent quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for concentration, purity, and impurity profiles. Certificates of Analysis (COA) documenting key parameters such as assay, chloride, sulfate, and heavy metal content are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area, away from direct heat and incompatible materials such as organic compounds, strong reducing agents, and bases. Due to its nature as a strong acid and oxidizer, containers must be kept upright and segregated from other chemicals. Recommended storage temperature is between 15°C to 25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HNO₃)	≥ 68.0 % - 70.0 %
Chloride (Cl)	≤ 0.5 ppm
Sulfate (SO₄)	≤ 2.0 ppm
Heavy Metals (as Pb)	≤ 0.5 ppm
Iron (Fe)	≤ 0.2 ppm
Residue after Ignition	≤ 5 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.