... 3,Water insoluble:0.1% 4,Appearance:yellow crystalline powder EDTA acid1, Chemical name: Ethylenediaminetetraacetic acid, ferric sodium complex 2 ... 4.0ppm max. 6, Appearance: yellow crystalline powder 7, Solubility;90g/1(20C) 120g/1(30C) 1700g/1(80C)8 ... fertilizer, Urea Phosphate UP fertilizer, NPK water soluble fertilizer, EDTA micronutrients fertilizer and Mono-Ammonium Phosphate MAP, tech grade, ...