Paraformaldehyde
Physical and chemical constant:
Item | Index |
Product name | Paraformaldehyde; Polyoxymethylene |
Molecular formula | (CH2O)n |
Molecular weight | (30)n |
Density | Relative Density (water=1)1.39; Relative Density (air=1)1.03 |
Risk mark | 8 (Flammable solid) |
Appearance | Paraformaldehyde with Low Molecular weight is white crystalline powder, with formaldehyde taste |
Melting point | 120-170°C |
Uses | Mainly used in the manufacture of synthetic resins and adhesives, also used in producing fumigant, bactericides and insecticides |
Technical Index:
Item | Index |
Purity (Paraformaldehyde) | 91-93% (wt) |
Appearance | Good fluidity and less dust, white flake, stimulating odor. |
Acidity (as Formic acid) | <0.07% (wt) |
Fe | <0.0003% (wt) |
Ash | <0.04% (wt) |
Size | granular |
PH value of 37% solution | 3.5-5 |
Application:
Paraformaldehyde is an ideal substitute of Industrial formaldehyde: first, it can be used as raw material of pesticide for the production of glyphosate herbicide, acetochlor, butachlor, ethachlor and sterilization agent tricyclazole etc; Second , it can be used in the production of high-grade car paint and phenolic resin, melamine resin and ion exchange resin, etc.