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Nitric Acid (China Origin)

Nitric Acid (China Origin)
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Country Origin : China Appearence : Colorless transparent liquid
CAS No. : 7697-37-2 H.S. Code : 2808.00
Formula : HNO3 Common Names : Aqua Fortis
IUPAC Name : Nitric acid
Packaging : 640 @ 35 kg HM/HDPE Carbuoys, 22.4 MT / 20'FCL
  • Description
  • Application
Brief Overview

 

Nitric acid (HNO3) is a colourless, highly corrosive, poisonous liquid that gives off choking red or yellow fumes in moist air. It is miscible with water in all proportions. Nitric acid of commerce is typically a solution of 52% to 68% nitric acid in water. Solutions containing over 86% nitric acid are commonly called fuming nitric acid. White fuming nitric acid (WFNA) is similar to the anhydrous variety, and red fuming nitric acid (RFNA) has a reddish brown colour from dissolved nitrogen oxides. When treated with hydrogen fluoride, both varieties form inhibited fuming nitric acid, which has increased corrosion resistance in metal tanks.

 

Manufacturing Process

 Nitric acid is made by reaction of nitrogen dioxide (NO2) with water.

3 NO2 + H2O à 2 HNO3 + NO

Normally, the oxygen in air to produce additional nitrogen dioxide re-oxidizes the nitric oxide produced by the reaction. Bubbling nitrogen dioxide through hydrogen peroxide can help to improve acid yield.

2 NO2 + H2O2 à 2 HNO3



Agricultural Industry

Nitric acid is mainly used in the production of fertilizers. Nitric acid is neutralized with ammonia to give ammonium nitrate. 

 

Oil Industry

Nitric acid can be used to manufacture components of trinitrotoluene (TNT) and also the ubiquitous and so-called plastic explosive “Semtex”. It can be used as an oxidizing agent in the production of some solid fuels for rocket propulsion;

 

Construction Industry

As an ageing agent in woodworking where it can be used in very dilute forms (typically below 10%) to change the appearance of some woods and to produce a colour similar to that of oiled or waxed surfaces old.

 

Metallurgy Industry

Higher concentration nitric acid is used for some specialist applications like metallurgy, and is generally produced by concentrating weak acid rather than by producing it directly.