We introduce ourselves as a reputed manufacturer and exporter of phosphate chemicals, located in Sichuan, China. We are an ISO 9001:2008 certified company with core competence in phosphate chemicals. We would like to offer you Monopotassium phosphate (DAP 21-53-0) . Maybe you already have some steady suppliers in China. But as an old Chinese saying goes, shop around and you can get a good buy. Following is our MKP specifications: Items Tech Grade Food Grade Main contents (as (NH4)2HPO4) 99.0 99.0 Phosphorus pentoxide (as P2O5) %â?¥ 53.0 53.0 Nitrogen (as N) %â?¥ 20.8 20.8 PH of 1% water solution 7.7-8.2 7.7-8.2 Moisture %â?¤ 0.2 0.2 Heavy metals (as Pb) %â?¤ 0.001 Arsenic (as As) %â?¤ 0.0003 Fluoride (as F) %â?¤ 0.001 Water insoluble %â?¤ 0.10 0.10