2. Ammonium nitrate. Agriculture(GOST 2-85) Ammonium nitrate (NH4NH3) is a granulated product of white colour yellowish hue. It is used for production of ammonites, nitric oxide and in agriculture - as mineral fertilizer. As mineral fertilizer it is effective in all zones and almost for all agricultural crops. Ammonium nitrate is used as presowing-appllied fertilizer as well as for early spring feeding of plants.SpecificationCharacteristic description Grade standard A B Higher grade First grade1. Total mass portion of nitrate and ammonium nitrogen based on: - NH4NO3 in dry matter, %, not less than 98 no standard- nitrogen in dry matter, %, not less than no standard 34,4 34,42. Water mass portion, %, not more than: - with sulphate and phosphate additives 0,2 0,2 0,2- with calcium / magnesium nitrate additives 0,3 0,3 0,33. Ph of 10% water solution, not less than 5,0 5,0 5,0- with sulphate-phosphate additives 4,0 4,0 4,04. Mass portion of substances insoluble in 10% nitric acid solution, %, not more than 0,2 no standard5. Grain size distribution: - mass portion og granule size from 1 to 3 mm, %, not less than 93 no standard- ma t