|
Index |
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 |
|
Evaporation residue% ≤ |
0.020 |
0.006 | |
|
Properties: At normal temperature, it is a kind of clear, colorless liquid with characteristic of pungent odor. Its density is 1.2201(20/4°C), melting point is 8.3°C,boiling point is 100.8°C, flash point in open cup is 68.9°C and auto-ignition temperature is 601.1°C.It can be mutually dissolved with water, ethanol and glycerol. It is corrodible and reducible. Quality standard: GB/T2093-93 Applications: Formic acid is one of basic organic chemical raw material, widely used in pesticide, leather, dye, pharmaceutical and rubber industries. Packing: In 25kg plastic drum. In 35kg plastic drum In 250kg plastic drum |