Ammonium sulfide

Ammonium sulfide (CAS 12135-76-1, EC 235-223-4), also known as diammonium sulfide or ammonium monosulfide and listed under FEMA 2053, is an inorganic sulfur-containing salt. It carries no assigned E-code and is commercially handled primarily as a liquid solution due to its instability in solid form.

In food and flavoring applications, ammonium sulfide functions as a flavoring agent and acidulant, contributing sulfurous, savory notes to processed food systems by releasing hydrogen sulfide under controlled conditions. In agriculture, it serves as a sulfur and nitrogen source in soil amendment formulations, where microbial activity converts it into plant-available nutrients.

Ammonium sulfide is sourced in solution grade suitable for food and agricultural use, with compliance assessed against FCC specifications where applicable. It falls under REACH registration requirements for EU supply. Packaging is typically in corrosion-resistant containers given its reactive nature; buyers should confirm grade and concentration with the supplier prior to ordering.