Iron(II) acetate tetrahydrate is commonly used in the textile industry as a mordant in dyeing processes. It helps fix dyes to fabrics, ensuring vibrant and long-lasting colors. In the field of chemistry, it serves as a precursor for synthesizing other iron compounds and catalysts. Additionally, it is utilized in water treatment to remove phosphates and other impurities. In agriculture, it acts as a micronutrient supplement to address iron deficiencies in soil, promoting healthy plant growth. Its applications also extend to the production of pigments and inks.