We offer high-quality Ferrous Sulphate crystals with 100% purity for lab experiments. Our GCML brand product features a thickness of 3-5mm, durable composition, and a light green appearance. With a water insoluble percentage of 0.50% and a ferrous content of 19%, our FeSO4 formula is ideal for various applications. As a leading Manufacturer, Exporter, and Supplier, we ensure top-notch quality and consistency in every batch of Ferrous Sulphate we provide.