項(xiàng)目

Iterms

工業(yè)級(jí)

Industrial Grade

食品級(jí)

Food Grade

主含量（以Na5P3O10計(jì)）       %        

Main Content Na5P3O10

≥94

≥94

五氧化二磷（以P2O5計(jì)）         %

Phosphorus pentoxide         

≥57

≥57

PH 值

PH Value of 1% water solution

9.2-10

9.5-10

鐵                            %

Iron (Fe)

0.01

0.01

重金屬                          %

Heavy metals, as Pb

≤0.001

砷（以As計(jì)）                   %

Arsenic, as As

≤0.0003

氟化物（以F計(jì)）                %

Fluoride, as F

≤0.003

水不溶物                        %

Water insoluble

≤0.15

≤0.05

普通粉末 100 目過篩量           %

Normal Power through 100 mesh sieve

≥40

≥40

普通粉末 35 目過篩量

Through 35 mesh sieve

≥90

≥90

普通粉末16 目過篩量

Through 16 mesh sieve

≥95

≥95

細(xì)粉末 100 目過篩量

Fine power through 100 mesh sieve

≥90

≥90

外觀

Appearance

白色粉末

White powder

白色粉末

White powder