Nitric acid is an inorganic acid, chemical formula HNO3, it is a colorless or yellow fuming liquid, pungent odor, gaseous yellow to brownish-red, soluble in water, due to its unstable physical properties, heat will decompose to release nitrogen dioxide, at this time it will appear as a yellow aerosol. Nitric acid is also a kind of strong oxidant, which will cause combustion in case of organic matter, wood chips, etc. Concentrated nitric acid, which contains trace oxides, reacts with almost all metals except aluminum and chromium-containing special steels, which can be passivated by concentrated nitric acid. The reaction with ethanol, turpentine, coke, organic residue is very violent.
Nitric acid is very unstable in terms of safety, contact with combustibles may cause fire, contact with skin can cause severe burns, is a dangerous chemical. Therefore, when storing nitric acid, it should be placed in a cool and ventilated warehouse, and the other party away from combustible sources and heat sources should be strictly observed, and the temperature of the stored warehouse should be lower than 30 °C, and the relative humidity should not exceed 80%. Keep the container tightly sealed. It should be stored separately from reducing agents, alkalis, alcohols, alkali metals, etc., and mixed storage should not be avoided. Storage should be equipped with emergency equipment for leakage and suitable containment materials. When transporting nitric acid, there should be professionally trained operators to operate, strictly abide by the operating rules and regulations, it is recommended that the transport personnel wear self-priming filter type gas masks or full face masks, wear rubber acid and alkali resistant clothing, and wear gloves.
Nitric acid is the main chemical raw material, mainly used in the manufacture of ammonium nitrate, calcium ammonium nitrate, phosphorus nitrate fertilizer, nitrogen, phosphorus and potassium and other compound fertilizers. As an essential raw material for the preparation of nitrate nitrogen fertilizer (such as ammonium nitrate, potassium nitrate, etc.), aqua regia, nitroglycerin, nitrocellulose, nitrobenzene, picric acid and nitrate,
Nitric acid is also a strong oxidizing acid and has a corrosive effect on most metals. High concentration of nitric acid has a passivation effect on metals. Nitric acid is used to clean equipment composed of carbon steel, stainless steel, copper, brass, carbon steel and stainless steel, which can remove scale and rust, and has good solubility for A-Fez 03 and magnetic Fe3 04. In the biological sewage treatment process, it can be used as a nitrogen source in microbial nutrients. In addition, nitric acid is widely used in the manufacture of fertilizers, chemical fibers, medicines, dyes, rubber, etc., and is also an indispensable and important analytical chemical reagent in the national defense industry, metallurgical industry, printing and dyeing industry and other industrial sectors.
Nitric acid is mainly used in the manufacture of solutions, generally used in organic industry, fuel industry, coating industry, pharmaceutical industry, water treatment and other industries.
Due to the wide range of nitric acid application industries, various industries for nitric acid solution concentration value requirements are not the same, the required process level is not the same, so the nitric acid solution concentration value demand is also different, in order to use nitric acid to ensure the temperature and concentration value of the solution is stable, the process flow to use the current more mainstream application of nitric acid online concentration meter.
CYR-G-NA nitric acid concentration online detector is an in-situ online detection concentration instrument, the equipment integrates a variety of functions such as detection and data display, composed of optical detection components and electronic components, 2-3 seconds can produce detection results, high detection accuracy, with alarm and cleaner. The installation method is often used for pipeline bypass installation method or small pipe diameter circulation pool installation, and the pipeline installation accessories can also be selected chuck, flange, immersion type and other suitable installation methods, and can also increase the certification qualification explosion-proof box according to the demand, suitable for various working conditions, to solve the process problems of modern industrial upgrading.
Main parameters of nitric acid concentration online detector:
Measuring range: 0.0 – 60.0% Resolution: 0.01%
Measurement accuracy: ± 0.1% Temperature compensation: 5-60°C
Input power: 24V DC protection level display part: IP65
Process pressure: < 1 MPa Wetted material: Hastelloy C-276, 2205
Post time: Aug-17-2022