Applications of Paraformaldehyde
Paraformaldehyde is a white, free-flowing polymer of formaldehyde, typically containing 91–95% formaldehyde content. It is used as a source of formaldehyde in solid form and finds wide application across chemical, agricultural, and industrial sectors due to its reactivity and ease of handling compared to aqueous formaldehyde solutions.
1.Key Application Areas:
Agriculture – Pesticides and Herbicides
Paraformaldehyde is used in the formulation of herbicides, fungicides, bactericides, and soil fumigants. It acts as a preservative and active intermediate in agrochemical production.
2.Resins and Plastics
It is a key raw material in the manufacture of thermosetting resins such as urea-formaldehyde (UF), phenol-formaldehyde (PF), and melamine-formaldehyde (MF) resins, which are used in wood panels, laminates, and adhesives.
3.Pharmaceuticals
Used in the synthesis of various pharmaceutical intermediates, including antibiotics, antiseptics, and other fine chemicals requiring formaldehyde as a reagent.
Disinfectants and Sanitizers
Paraformaldehyde is used in solid disinfectant formulations for sterilizing laboratories, medical facilities, poultry houses, and equipment due to its strong antimicrobial properties.
4.Chemical Synthesis
Serves as a formaldehyde source in organic synthesis, particularly in reactions requiring anhydrous or controlled-release formaldehyde.
5.Textile Industry
Utilized in textile finishing agents to improve wrinkle resistance and durability through cross-linking processes involving formaldehyde-based resins.
6.Laboratory and Research
Commonly used as a fixative in biological specimen preparation and histology for preserving tissue morphology.
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