Ultrasol® micro FeQ48 is a product developed for the correction and prevention of Iron deficiency in a wide range of agricultural and horticultural crops, particularly in alkaline and calcareous soil conditions, since it has 4.8% Iron as ortho-ortho isomer. Ultrasol® micro Rexene® FeQ48 has as chelating agent EDDHA as a richness of 6.0% of which 4.8% is in ortho-ortho position. Ultrasol® micro Rexene® FeQ48 is a stable product and keeps iron available in a soil pH range of 3.5 to 12., "This product falls into the category of plant nutrients and is not classified as toxic according to NMX-R-019-SCIFI-2011. Read the safety data sheet carefully before using this product."