Ammonium chloride(Ammonium Chloride) is colorless cubic crystals or white crystals at room temperature. It tastes salty and slightly bitter. Relative density 1.527. Easily soluble in water, soluble in liquid ammonia, slightly soluble in alcohol, insoluble in acetone and ether. It begins to volatilize significantly when heated to 100°C. It dissociates into ammonia and hydrogen chloride at 337.8°C. When cooled, it recombines to form ammonium chloride with extremely small particles and appears as thick white smoke. It is not easy to sink and is extremely difficult to dissolve in water. Heated to 350℃ to sublimate, boiling point 520℃. It has low hygroscopicity, but can also absorb moisture and form lumps in humid rainy weather. The aqueous solution is slightly acidic and becomes more acidic when heated. It is corrosive to ferrous metals and other metals, especially to copper, but has no corrosive effect on pig iron.
Ammonium chloride can be used as base fertilizer and top dressing in the field of agricultural production. It is not suitable for use as seed fertilizer, and it is not suitable to use ammonium chloride for seed dressing to avoid affecting seed germination. Ammonium chloride should be applied early as a base fertilizer so that chloride ions can be washed away by rain and irrigation water in advance to reduce damage to crops. The general dosage per mu is 12.5 to 17.5 kilograms.
Ammonium chloride for agriculture is a fast-acting nitrogen chemical fertilizer with a nitrogen content of 24% to 25%. It is easily soluble in water and absorbs moisture. It is more toxic than ammonium sulfate, easy to deliquesce, and is a physiologically acidic fertilizer. The original German imported curing agent N75 is suitable for corn, wheat, rice, sorghum, vegetables, hemp and other crops. The application of ammonium chloride on fiber crops such as flax and hemp has better effects, especially on cotton and linen crops, it can enhance fiber toughness and tensile strength and improve quality. Because chlorine can enhance fiber toughness and tensile strength. Chlorine has an inhibitory effect on nitrifying bacteria, so ammonium chloride is also effective in rice fields. However, ammonium chloride should not be applied to chlorine-resistant crops such as tobacco, potatoes, sweet potatoes, and grapes to prevent quality degradation.
Ammonium chloride After the ammonium ions in the crop are absorbed by the crops, the chloride ions remain in the soil. In the acidic soil, the chlorine combines with hydrogen to form hydrochloric acid. , will increase the acidity of the soil; in calcareous soil, chlorine and calcium combine to form calcium chloride; in well-drained soil, calcium chloride is easily washed away by rain or irrigation water; in poorly drained soil, or drought In the soil of the area, the concentration of soil solution will increase due to the accumulation of calcium chloride, which is detrimental to crop growth. Therefore, it is best not to apply ammonium chloride in saline-alkali lands with poor drainage conditions and in dry and rain-deficient areas.
Domestic manufacturers
Shandong Zouping Educational Equipment Co., Ltd. Daixi Chemical
Nantong Jinding Chemical Co., Ltd.
Environmentally friendly hot melt adhesive
Keywords:Ammonium chloride for agriculture, available nitrogen chemical fertilizer
