ANFO of Shijiazhuang, China, on 16 March 2001. A total of 108 people were killed, and 38 others injured when, within a short time, several ANFO bombs exploded near four apartment buildings. Improvised bombs made with agricultural-grade AN are less sensitive and less efficient than the explosive-grade variety. In November 2009, a ban on ammonium sulfate, ammonium nitrate, and calcium ammonium nitrate fertilizers was imposed in the former Malakand Division – comprising the Upper Dir, Lower Dir, Swat, Chitral and Malakand districts of the North West Frontier Province (NWFP) of Pakistan – by the NWFP government, following reports that those chemicals
Monocalcium phosphate the slow acting acid sodium acid pyrophosphate (SAPP). Monocalcium phosphate Monocalcium phosphate is an inorganic compound with the chemical formula Ca(HPO) ("AMCP" or "CMP-A" for anhydrous monocalcium phosphate). It is commonly found as the monohydrate ("MCP" or "MCP-M"), Ca(HPO)·HO. Both salts are colourless solids. They are used mainly as superphosphate fertilizers and are also popular leavening agents. Material of relatively high purity, as required for baking, is produced by treating calcium hydroxide with phosphoric acid: Samples of Ca(HPO) tend to convert to dicalcium phosphate: Superphosphate fertilizers are produced by treatment of "phosphate rock" with acids. Using phosphoric acid, fluorapatite is