Formic Acid
|
Index item
|
Qualified grade
|
Excellent grade
|
|
formic acid , %≥
|
85
|
90
|
|
acetic acid,%
|
0.6
|
0.4
|
|
Chroma (as platinum and cobalt) ,%≤
|
10
|
10
|
|
Dilution experiment (acid+water=1+3)
|
clear
|
clear
|
|
Chloride (as CL),%≤
|
0.005
|
0.003
|
|
Sulfate (as SO4),% ≤
|
0.002
|
0.001
|
|
Iron (as Fe ),%≤
|
0.0005
|
0.0001
|
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