Product name: Formaldehyde solution Level: AR / CP
Implementation of the standards: GB / T 685-2013
Molecular formula: HCHO
Properties: This reagent is transparent colorless liquid with a pungent odor, corrosion resistance, can be optionally mixed with water. This reagent containing 8% to 14% methanol in order to prevent polymerization, methanol content was measured according to Appendix A, may be used for further polymerization inhibitor.
Hazardous characteristics: its vapor and air can form explosive mixtures. In case of fire, high-heat combustion caused the explosion. Violent reaction with oxidants.
Incompatibility: Strong oxidizing agents, acids, alkalis.
Items | Indicators | |
AR | CP | |
content（HCHO）, W/% | 37.0～40.0 | 36.0～40.0 |
Chroma / Hazen units ≤ | 10 | 20 |
Residue on ignition，W/% ≤ | 0.003 | 0.005 |
Acidity (in H +)/（mmol/100g） ≤ | 0.005 | 0.005 |
chloride（Cl），W/% ≤ | 0.0001 | 0.0003 |
Sulfate(SO4) ，W/% ≤ | 0.0004 | 0.001 |
iron(Fe) ，W/% ≤ | 0.0001 | 0.0003 |
lead(Pb) ，W/% ≤ | 0.0002 | 0.0005 |