Industrially, ferrous sulfate is mainly used as a precursor to other iron compounds. It is a reducing agent, and as such is useful for the reduction of chromate in cement to less toxic Cr compounds. Historically ferrous sulfate was used in the textile industry for centuries as a dye fixative. It is used historically to blacken leather and as a constituent of ink. The preparation of sulfuric acid ('oil of vitriol') by the distillation of green vitriol Iron sulfate has been known for at least 700 years. Iron sulfate is sold as ferrous sulfate, a soil amendment for lowering the pH of a high alkaline soil so that plants can access the soil's nutrients. In horticulture it is used for treating iron chlorosis. Although not as rapid-acting as ferric EDTA, its effects are longer-lasting. It can be mixed with compost and dug into the soil to create a store which can last for years. It is also used as a lawn conditioner, and moss killer. Product Name: Billa Ferrous 13 % Chemical Properties : 1-(7% w/v) Coated Ferrous with Organic substances 2-(6% w/v) EDTA Ferrous Chemical Character: Chemical Trace Elements Easy to Be Absorbed Physical Properties Form : Powder Solubility Fully Water Soluble: Full soluble PH (1g /100ml ): 6-6.5 TDS 10 g / L: 515 ppm Color: White Package: Plastic Gallon Size: 1 kg, 20 kg, Custom demand Place of Origin: Egypt