Ngày cập nhật:26 Apr, 2019

Đặc tính:Colorless gas with a characteristic sharp pungent odor, lighter than air, easily liquefied, and highly soluble in water.

Lĩnh vực ứng dụng:Industrial refrigeration (R717 refrigerant), fertilizer production (Urea), flue gas treatment (SCR/SNCR), and metal surface treatment.

Các dòng sản phẩm:Khí NH3 công nghiệp/tinh khiết (chai 40L–50L), NH3 lỏng (bình LGC, xe bồn ISOTANK) và dung dịch Amoniac (NH4OH).

Ammonia

LIQUID AMMONIA (NH₃) & INDUSTRIAL APPLICATIONS

Liquid Ammonia is an inorganic compound with the chemical formula NH₃. Under standard conditions, it is a toxic gas with a pungent odor, highly soluble in water. In aqueous solution (NH₄OH), it acts as a weak base that decomposes into NH₃ gas and water.

Ammonia boils at -33.34°C under 1 atm pressure, requiring storage under pressure or low temperatures. It freezes at -77.7°C into white crystals. Industrial liquid ammonia typically contains 28% NH₃ in water and is transported via tank trucks or cylinders.

🧪 Key Chemical Properties

Weak Base: Turns damp red litmus paper blue and phenolphthalein solution pink.
Decomposition: Readily decomposes in solution to release ammonia gas.
Reaction with Acids: Neutralizes acids easily to form ammonium salts.
Reaction with Salt Solutions: Precipitates various metal hydroxides when reacting with salt solutions.

💡 Major Applications of Liquid Ammonia

1. Fertilizers: About 83% of liquid ammonia is used as fertilizer (essential nitrogen source for crops like corn and wheat).
2. Cleaning Agent: Household and industrial cleaner for glass, porcelain, stainless steel, and ovens.
3. Textiles: Treats cotton materials, gives alkaline luster to fibers, and washes wool.
4. Environmental Treatment: Removes NOₓ and SOₓ pollutants from fossil fuel emissions.
5. Antimicrobial in Food: Commercial anhydrous ammonia is used to reduce microbial contamination in beef.
6. Wood Processing: Reacts with natural tannins in wood to darken and enrich wood tone.