項目

Iterms

工業(yè)級

Industrial Grade

食品級

Food Grade

主含量（以(NH4)2HPO4計）    %

Main Content

≥98

≥98

五氧化二磷（以P2O5計）     %

Phosphorus pentoxide         

≥53

≥53

氮（以N計）                %

Nitrogen, as N

≥20.8

≥20.8

PH 值

PH Value of 1% water solution

7.8-8.2

7.8-8.2

水份                       %

Moisture

≤0.2

≤0.2

重金屬                     %

Heavy metals, as Pb

≤0.001

砷（以As計）                %

Arsenic, as As

≤0.0003

氟化物（以F計）             %

Fluoride, as F

≤0.005

水不溶物                   %

Water insoluble

≤0.10

≤0.10

外觀

Appearance

白色顆粒晶體

White Granular Crystal, easily soluble in water

白色顆粒晶體

White Granular Crystal, easily soluble in water