Ammonium Sulfate, Grade : Technical

Colorless crystal or white particles. Odorless. Above 280 ℃ decomposition. Solubility in water: 0 ℃ when 70.6g, 100 ℃ when 103.8g. Insoluble in ethanol and acetone. pH 0.1mol L aqueous solution was 5.5. The relative density of 1.77. Refractive index of 1.521. Ammonium sulfate fertilizer is mainly used for a variety of soils and crops. It can also be used aspects of textile, leather, medicine and other fields.
Chemical Properties：
Pure colorless transparent orthorhombic crystalline, acidic aqueous solution. Insoluble in alcohol, acetone and ammonia. Hygroscopic solid block form after moisture absorption. Heated to 513 ℃ completely decomposed to ammonia, nitrogen, sulfur dioxide, and water. And alkali action with the release of ammonia. Reaction with barium chloride, barium sulfate precipitation. It can also make the protein occurs salting.
Role and purpose
An excellent fertilizer (commonly known fertilize the soil powder), for general soil and crops, foliage make vigorous growth, improve fruit quality and yield, enhance crop resistance to disasters can be used for basic fertilizer, top dressing fertilizer and seed. With salt metathesis reaction was carried manufacturing ammonium chloride, ammonium alum and aluminum sulfate to generate action, together with boric acid and other manufacturing refractory materials. Added to the plating solution to increase conductivity. Food is also a catalyst of caramel, fresh yeast production in cultured yeast nitrogen, acid dyes help dyes, leather deliming agent. In addition, for brewing, chemical reagents and battery production. An important role is also rare earth mining, mining ammonium sulfate as raw materials, the use of ion exchange in the form of the mineral soil in the rare earth exchanged out, and then collect leachate impurity removal, sedimentation, pressing.