五氧化二磷

工业级（化学纯） Industrial Grade (chemically pure)

分析纯

Analyticall purity

特定纯

Specific purity

1

含量(P₂O₅)%

P2O5 content

≥99%

≥99.5%

≥99.5%

2

活性R值

Active R value

1.2

1.7

2.0

3

还原物(以P₂O₃计)%  Reduzate (as P₂O₃)

≤0.01

≤0.008

≤0.005

4

澄清度试验clarity test

合格 Qualified

合格Qualified

合格Qualified

5

水不溶物%

Water insoluble

≤0.02

≤0.01

≤0.01

6

总氮量(N)% N content

≤0.01

≤0.002

≤0.001

7

重金属以(Pb计)% Heave metals (as Pb)

≤0.01

≤0.002

≤0.001

8

铁含量(Fe)%

Ferum (as Fe)

≤0.01

≤0.002

≤0.001

9

砷含量(As)%

Arsenic (as As)

≤0.01

≤0.007

≤0.0025