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Standard:GB/T 2093-1993
Uses: mainly used in rubber, printing-dyeing, leather, drug.
Technical requirements:
Appearance: colorless transparent liquid, without suspension .
| Item |
Index |
| Top-grade |
First grade |
Qualified product |
| Chroma (Pt-Co) ≤ |
10 |
20 |
-- |
| Assay, % ≥ |
90.0 |
85.0 |
85.0 |
| Diluted test(acid=water=1+3) ≤ |
non-cloudy |
ok |
-- |
| Chloride(as Cl-), % ≤ |
0.003 |
0.005 |
0.020 |
| Sulfate (as SO42-), % ≤ |
0.001 |
0.002 |
0.050 |
| Fe(as Fe3+), % ≤ |
0.0001 |
0.0005 |
0.0010 |
| Residue on evaporation , % ≤ |
0.006 |
0.020 |
0.080 |
Molecular formula:HCOOH
Relative molecular mass :46.03
Properties: colorless irritating Odor liquid.
Packing & Storage: plastic drum, glass bottle or plastic drum(jar) lined open steel barrel; transport in the regulation of railway ministry of China. Do not mix with oxidant, alkali, active metal powder, food chemicals. Avoid insolation, rain and high temp..
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