Ammonium Hydroxide
Dongguan Weiqi Chemical Co., Ltd. was established in March 2019, at a time when China's chemical industry was undergoing rapid growth, with increasing demand for chemical products across various sectors. Founded by industry veterans with extensive experience in chemistry, the company is located in Qiaotou Town, Dongguan City, Guangdong Province. Qiaotou's dynamic industrial ecosystem and convenient transportation facilitate raw material procurement and product distribution.
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High-Purity Caustic SodaHigh-Purity Caustic Soda for Manufacturing and Processing Caustic Soda (Sodium Hydroxide, NaOH) is a fundamental strong alkali widely used across modern industries due to its high chemical...read more
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Strict Quality Control
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- Hazardous Chemicals Business License
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Ether, Acetic Anhydride, Bromine)
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Acetone, Toluene, Sulfuric Acid, Potassium Permanganate)
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Ammonium hydroxide, also called Aqua Ammonia, solution of ammonia gas in water, a common commercial form of ammonia. It is a colourless liquid with a strong characteristic odour. In concentrated form, ammonium hydroxide can cause burns on contact with the skin; ordinary household ammonia, used as a cleanser, is dilute ammonium hydroxide.
Grade Standard
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Items |
Standard |
|
|
Industry grade |
Industry grade |
|
|
NH3 % |
20% |
25% |
|
Residue % |
0.3% |
0.3% |
|
Chromaticity |
80 |
80 |
- Used in manufacturing rayon and other textiles, pharmaceuticals, paper, rubber, detergents, inks, and other organic chemicals;
- Also used in photographic development, metal extracting, and water purification;
- Also used as a fertilizer for direct application to the soil, a household cleanser, and a food additive;
- Also used as a mordant in textile dyeing;

Ammonium Hydroxide Chemical Properties
Chemical formula: NH4OH
Molar mass: 35.04 g/mol-1
Density: 0.91 g/mL-1
Melting point: -57.5℃
Boiling point: 37℃
Appearance: Colorless liquid
Odor: Highly pungent
Solubility in water: Highly soluble
Storage
Ammonium Hydroxide should be stored in a closed container and kept cool, otherwise, the ammonia gas will come out of solution and the material strength will be reduced.
Properties of Ammonium Hydroxide
Alkalinity
It is a strong base with a pH typically ranging from 11 to 13, depending on the concentration. The high alkalinity makes it useful as a cleaning agent and for pH adjustment .
Volatility
Ammonium hydroxide is volatile, meaning it readily releases ammonia gas, giving it a characteristic pungent odor .
Solubility
It is highly soluble in water and can act as a solvent for various organic and inorganic compounds .
Reactivity
Ammonium hydroxide reacts with acids to form ammonium salts, and it can also act as a nucleophile in organic synthesis reactions .
Applications of Ammonium Hydroxide
Common Applications
Chemical Processing: Used as a hydroxide compound in modified treatment compositions for natural gas processing, due to its high vapor pressure providing more effect on the gas compared to other hydroxides
Cleaning Solutions: Used in cleaning solutions for steam generating systems to remove deposits like oxides, hydroxides, and complex sludges, alone or combined with organic acids, chelants, corrosion inhibitors, etc. It promotes effective cleaning while minimizing damage to metallic surfaces
Synthesis: Used as a reagent for synthesizing quaternary ammonium hydroxides, taking advantage of its water insolubility to isolate the product by precipitation
Other Applications
Vaccine Adjuvant: It is used as an adjuvant in vaccines to enhance the immune response
Antacid: It has also served as an antacid.
Biocide Formation: Its solutions can be used for biocide formation
Urea Synthesis: Its solutions are useful in urea synthesis
Application Cases
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Product/Project |
Technical Outcomes |
Application Scenarios |
|
Ammonium Hydroxide in Natural Gas Processing |
Its high vapour pressure allows more effective treatment of natural gas compared to other hydroxides, improving efficiency and reducing costs. |
Natural gas processing plants, where ammonium hydroxide is used in modified treatment compositions. |
|
Ammonium Hydroxide Cleaning Solutions |
Effectively removes deposits like oxides, hydroxides, and complex sludges from steam generating systems while minimising damage to metallic surfaces, improving system performance and lifespan. |
Industrial cleaning of steam generators, boilers, and other equipment in power plants and manufacturing facilities. |
|
Quaternary Ammonium Hydroxide Synthesis |
Its water insolubility allows for easy isolation of the product quaternary ammonium hydroxides, improving yield and purity. |
Chemical synthesis processes, particularly in the production of quaternary ammonium compounds used as surfactants, biocides, and phase transfer catalysts. |
|
Ammonium Hydroxide in Semiconductor Processing |
Its strong basicity and high purity enable effective removal of residues and contaminants from semiconductor wafers, improving device performance and yield. |
Semiconductor manufacturing processes, where ammonium hydroxide is used in cleaning solutions for wafer cleaning and surface preparation. |
|
Ammonium Hydroxide in Textile Processing |
Its strong alkalinity and high vapour pressure facilitate efficient mercerization of cotton fibres, improving dyeability, lustre, and strength of the treated textiles. |
Textile processing plants, where ammonium hydroxide is used in the mercerization of cotton fabrics and yarns. |
Certificates and Documents




As one of the leading ammonium hydroxide manufacturers and suppliers in China, we warmly welcome you to wholesale bulk ammonium hydroxide for sale here and get pricelist from our factory. All chemicals are with high quality and low price.
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