Used primarily in agriculture as a sulfur and potassium fertilizer, especially in high-value crops like fruits, vegetables, nuts, potatoes, wheat, and legumes. It is highly soluble and compatible with many fertigation systems, making it ideal for drip and sprinkler applications without causing clogging. Also serves as an effective alternative to sulfate-based fertilizers in sensitive crops due to its low salt index. Commonly used in greenhouse and hydroponic systems to improve nutrient uptake and promote plant growth, yield, and quality.

Additionally, employed in industrial processes such as metal treatment, leather tanning to reduce chromium levels, as a chlorine neutralizer in water treatment, and in laboratory chemical analysis, such as measuring chlorine content.