項目

Item

工業級 

Industrial Grade

食品級 

Food Grade

主含量（以Na₅P₃O₁₀計）            %

Main content (as Na₅P₃O₁₀)

≥94

≥95

五氧化二磷      %

Phosphorus pentoxide

≥57

≥57

水不溶物        %

Water insoluble

≤0.15

≤0.05

鐵（Fe）         %

Ferrum

——

≤0.01

PH值（1%水溶物） 

Ph value (1% aqueous solution)

9.2-10.0

9.5-10.0

重金屬(以Pb計)  %

Heavy metal (as Pb)

——

≤0.001

砷(以As計)      %

Arsenic (as As)

——

≤0.0003

氟化物(以F計)   %

Fluoride (as F)

——

≤0.003

粒度 Fineness   

16目過篩量      % 

Through 16 mesh

35目過篩量      % 

Through 35 mesh

100目過篩量     %

Through 100 mesh

 細粉Fines

100目過篩量     %

Through 100 mesh

≥95

≥90

≥40

——

≥95

≥90

≥40

≥90.0

白度            %

Whiteness

≥90

≥90.0

外觀 

Appearance

白色粉末 

White power 

白色粉末 

White power