NH42SO4

NH42SO4 most commonly refers to ammonium sulfate, with the conventional formula (NH4)2SO4. It is an inorganic salt composed of ammonium cations (NH4+) and sulfate anions (SO4^2-).

Production and origins: Ammonium sulfate is produced industrially by the neutralization of ammonia (NH3) with sulfuric acid (H2SO4), giving 2 NH3 + H2SO4 → (NH4)2SO4. It can also be recovered as a byproduct from various industrial processes and refined for use as a fertilizer or chemical feedstock.

Properties: In solid form at room temperature, it appears as a white crystalline solid. It is highly soluble in water, and its solutions are mildly acidic due to hydrolysis of the ammonium ion. The compound is stable under ordinary storage conditions but can decompose upon strong heating.

Uses: The principal use of ammonium sulfate is as a fertilizer, providing both nitrogen and sulfur to crops and helping improve nutrient availability in acidic soils. It is also used in certain industrial processes as a source of ammonium and sulfate for chemical manufacturing and wastewater treatment applications.

Safety and handling: Ammonium sulfate is of relatively low toxicity, but dust can irritate the eyes, skin, and respiratory tract. It should be stored in a dry area, handled with appropriate protective equipment, and kept away from incompatible materials such as strong bases and oxidizers.