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NH₃

Ammonia

Ammonia, a kind of inorganic substance with chemical formula of NH3 and molecular weight of 17.031, is colorless and has a strong irritating odor.

High-purity ammonia is mainly used in the field of new optoelectronic materials and is an important basic material for the preparation of GAN by MOCVD technology. High-purity ammonia is also the basic material for the preparation of nitrogen trifluoride, silicon nitride, and the raw gas for the production of super high-grade nitrogen. In addition, liquid ammonia is widely used in the semiconductor industry, metallurgical industry, and other industries and scientific research that require a protective atmosphere.

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Ammonia
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Process

Ammonia is manufactured by the Haber-Bosch process, consisting of a direct reaction between hydrogen and nitrogen, in the molar proportions 3:1.

Ammonia is manufactured by the Haber-Bosch process, consisting of a direct reaction between hydrogen and nitrogen, in the molar proportions 3:1.

Industrial ammonia is purified by a filter into the electronic grade ultra-high purity ammonia.

The annual output of ultra-high purity ammonia gas in Jinhong is over 10,000 tons.

GasAmmonia
CAS No.7664-41-7
Purity≥99%
Applications
  • Metal Treating
    Metal Treating

    Ammonia is used in suchmetal treating operations as nitriding, carbo-nitriding,bright annealing, furnace brazing, sintering, etc. It is used in extracting such metals as copper, nickel, and molybdenum from their ores. It is also used to reduce atmosphere in heat treatment of metals and for the fabrication of silicium nitride.

  • Semiconductors
    Semiconductors

    Ammonia is widely used in the semiconductor industry.

  • LED
    LED

    Ammonia is used in the production of blue and white LEDs(Light Emitting Diods).

  • Chemical
    Chemical

    Dissociated ammonia is also used as a convenient sourceof hydrogen for the hydrogenation of fats and oils. High-purity ammonia provides nitric acid through the Ostwald process. Ammonia is also used in the production of hydrogen cyanide.

  • Energy
    Energy

    The petroleum industry utilizes anhydrous ammonia inneutralizing the acid constituents of crude oil and in pro-tecting equipment such as bubble plate towers, heat ex-jw changers, condensers, and storage tanks from corrosion.

  • Manufacturing
    Manufacturing

    As a processing agent, ammonia is used in the manufac-turing of alkalis, ammonium salts, dyes, pharmaceuticals, cuprammonium rayon, and nylon.

  • Rubber Industry
    Rubber Industry

    Ammonia is used in the rubber industry for stabilization ofraw latex to prevent coagulation during transportationand storage.

  • Environment
    Environment

    Ammonia can be used to neutralize nitric oxides emittedby diesel engines by selective catalytic reduction.

Frequently Asked Question
  • What is the formula (chemical formula) of ammonia?

    NH3

  • What the molar mass of ammonia?

    17g/mol

  • Is ammonia a base?

    NH3 is not a base, it cannot be ionized, it is a non-electrolyte, but it is an alkaline gas.

  • Is ammonia a compound?

    Ammonia is a compound, because ammonia is synthesized from N atoms and H atoms to form molecules, and it is also a gas. After being dissolved in water, it reacts with water to generate ammonium and hydroxide. At this time, there are more hydroxides in water than hydrogen ions. So the solution is alkaline. Ammonia has a strong irritating odor, is soluble in water, ethanol and ether, decomposes into nitrogen and hydrogen at high temperature, has a reducing effect, and can be oxidized to nitric oxide in the presence of a catalyst.

  • Is ammonia toxic?

    Ammonia is toxic and can burn the skin, eyes, and mucous membranes of the respiratory organs. Excessive inhalation can cause lung swelling and even death.

  • Is ammonia flammable?

    Ammonia cannot be combusted in air, but can be combusted in pure oxygen, so ammonia is not a flammable gas.

  • Is ammonia polar or nonpolar?

    Ammonia is polar molecule.

  • What is the melting point of ammonia?

    Ammonia density 0.7710 g/L (standard condition), melting point -77.7°C, boiling point -33.35°C, critical temperature 132.9°C, critical pressure 11342.3kPa (112.3 atmospheres)

  • What are the hazards of ammonia?

    1. The vaporized liquid ammonia is highly volatile and highly irritating, and irritation of the nasal mucosa can cause suffocation. It can cause redness and swelling of the throat, causing coughing and hoarseness.
    2. Long-term exposure to high-concentration ammonia can cause emphysema and pneumonia, stimulate the nervous system, and destroy respiratory function and blood circulation.
    3. Skin contact with high concentration of ammonia gas will absorb its tissue moisture, alkalize fat, and cause dissolved tissue necrosis.
    4. The sensitivity of the olfactory organs will change with a long exposure time.
    5. The vaporized ammonia gas is also explosive, and its explosion range in the air is 16.0-25.0%, which is easy to pose a threat to personal safety.

  • How does ammonia refrigeration work?

    After the liquid ammonia absorbs the heat of the object to be cooled in the evaporator, it is vaporized into low-pressure and low-temperature ammonia gas, which is inhaled by the compressor, compressed into high-pressure and high-temperature ammonia gas, and then discharged into the condenser. It is then condensed into high-pressure ammonia liquid in the condenser, throttled by the throttle valve to low-pressure and low-temperature ammonia liquid, and then enters the evaporator again to absorb heat and vaporize to achieve the purpose of circulating ammonia refrigeration.

  • Q: What is the melting point of ammonia?

    Ammonia density 0.7710 g/L (standard condition), melting point -77.7°C, boiling point -33.35°C, critical temperature 132.9°C, critical pressure 11342.3kPa (112.3 atmospheres)

  • Q: What are the uses of ammonia?

    1. Ammonia is used to manufacture ammonia water, nitrogen fertilizer, compound fertilizer, nitric acid, ammonium salt, soda ash, etc.
    2. Widely used in chemical, light industry, fertilizer, pharmaceutical, synthetic fiber and other fields.
    3. Nitrogen-containing inorganic salts and organic intermediates, sulfonamides, polyurethanes, polyamide fibers and nitrile rubbers all need to use ammonia as raw materials directly.
    4. In addition, liquid ammonia is often used as a refrigerant, and ammonia can also be used as a biofuel to provide energy.

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