paraformaldehyde
Product introduction Paraformaldehyde is a white flammable crystalline powder with a formaldehyde odor.Soluble in hot water and emit formaldehyde, slowly soluble in cold water, soluble in caustic alkali and alkali metal carbonate solution, insoluble in alcohol and ether, its high polymer is insoluble in water. Formaldehyde-like reactions can occur, such as chloromethylation, acetal formation with alcohols, and the like. For synthetic resins, adhesives, pharmaceuticals, bactericides, insecticides, disinfectants, etc. Cas No. :30525-89-4 Molecular weight:90.08 Molecular Formula: (CH2O)nParaformaldehyde Spedification:
|
ITEM |
STANDARD |
|
Cotent |
≥96% |
|
chloride |
≤0.005% |
|
sulphate |
≤0.02% |
|
Heavy metal( as Pb ) |
≤0.003% |
|
Fe |
≤0.01% |
|
appearance |
White or light yellow silt |
|
Ignition residue |
≤0.5% |
Paraformaldehyde Usage :
1, industry. For synthetic resins, adhesives, coatings and other industries. 2, agriculture. For the production of herbicides: glyphosate, alachlor, butachlor, acetochlor, clomazone and so on. For the production of pesticides: methotrexate, phorate, tricyclazole, triadimefon, cotton wool, and nitrone alcohol. For plant growth regulators: glyphosate. 3, medicine. It is used for disinfection of wards, clothes and bedding. 4, organic materials. For the preparation of pentaerythritol, trimethylolpropane, glycerol, acrylic acid, methyl acrylate, methacrylic acid, N-hydroxymethyl acrylamide and the like.
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