Molecular formula: FeSO4 7H2O
This is 200g - 5kg of Vital Minerals Iron (II) Sulphate heptahydrate supplied in aluminium doypack pouch or tub (NOT A PLASTIC BAG) with resealable zip grip and heat seal, packed in Ribble Valley UK
Ferrous Sulfate Heptahydrate, also called Copperas, is a blue-green, monoclinic crystals; soluble in water, melts at 64 C. It is commercially generated as a by-product during the manufacture of Titanium Dioxide, or as a by-product of the pickling of steel. It is used as a mordant in dyeing wool, in the manufacture of ink, in water purification as a substitute for aluminum sulfate, as a fertilizer, moss control and as a feed additive. It is used to produce magnetic ferric oxide.
A typical application for greening of grass would be 10-20g per Litre. Be aware that at dilutions of 30g per Litre and higher, undesired blackening of moss could occur. It is for this reason that Ferrous Sulfate is often included as an active ingredient in commercial lawn moss killing products. Over application of the product could also result in blackening of the grass itself.