磷酸氢二铵Di-AmmoniumPhosphate(DAP)化学式：(NH4)2HPO4分子量：132.0执行标准：Q/74465717-9.1-2005（工业级）Q/74465717-9.2-2005（食品级）性状：白色粒状晶体，相对密度1.619,熔点155℃,易溶于水,不溶于醇,1%水溶液PH值为8.0,在空气中逐渐失去氨生成磷酸二氢铵。用途：主要用于木材、纸张、织物作防火剂,也用作防火涂料添加剂,还用于印刷制版和医药的制造等.在食品工业中用作发酵剂、营养剂等。在农业上作为无氯型N、P二元复合肥使用，其总养分（N+P2O5）为74%，是配制N、P、K三元复混肥的优质基础原料。包装：内塑外编袋、纸袋、PE袋，每袋净重25、50、1000Kg，贮于通风干燥处。技术指标序号指标名称工业级食品级1主含量（以(NH4)2HPO4计）%≥98.098.02***（以P2O5计）%≥53.053.03氮（以N计）%≥20.820.84PH值7.8-8.27.8-8.25水份%≤0.20.26***（以Pb计）%≤0.0017***（以As计）%≤0.00038氟化物（以F计）%≤0.0059水不溶物%≤0.100.10Di-AmmoniumPhosphate(DAP)Molecularformula:(NH4)2HPO4Molecularweight:132.0Standardexecuted:Q/744657170-9.1-2005(technicalgrade)Q/74465717-9.2-2005(foodgrade)CASNumber:7783-28-0Properties:Whitegranularcrystal,relativedensityat1.619g/cm3,meltingpointat155,easilysolubleinwater,insolubleinalcohol,PHvalueof1%solutionis8.0Uses:Asafire-preventionagentforfabric,timberandpaper.Forfoodgradeitismainlyusedasafermentationagent,nourishment,andsoon.Usedasahigheffectivenon-chlorideN,Pcompoundfertilizerinagriculture.Itcontainstotally74%fertilizerelements,usedasabasicrawmaterialforN,PandKcompoundfertilizer.Packingandstorage:In25kg,50kg,1000kgnetbags,storeatacool,dryandwellventilatedplace.GuaranteedTechnicalSpecificati***:No.Specificati***IndustrialGradeFoodGrade1Maincontent%≥98.098.02Phosphoruspentoxide%≥53.053.03Nitrogen,asN%≥20.820.84PHvalueof1%solution7.8-8.27.8-8.25Moisture%≤0.20.26He***ymetals,asPb%≤0.0017Arsenic,asAs%≤0.00038FluorideasF%≤0.0059Waterinsoluble%≤0.100.10)