Paraformaldehyde: White amorphous powder, flammable solid with pungent odor (formaldehyde odor).
It is a linear polymer of formaldehyde, no fixed melting point, heat decomposition, release a large
number of toxic formaldehyde gas, the melting point range of 120-170 ℃. Flash point 70 ℃,
ignition temperature 300 ℃, explosive limit 7.0-73.0%. Soluble in water and emit formaldehyde,
slowly dissolved in cold water, and soluble in sodium hydroxide and carbonate solution.
Insoluble in alcohol and aldehyde.
Paraformaldehyde YuHang Chemical
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Storage: Store in a cool, ventilated warehouse. Keep away from fire and heat. Library temperature does not exceed 32 ℃, relative humidity does not exceed 80%. Should be separated with oxidants, reducing agents, acids, alkalis, etc., avoid mixing reservoir. Using explosion-proof lighting, ventilation facilities. Prohibit the use of spark-prone machinery and equipment and tools. Storage area should be equipped with suitable materials to contain spills.
Packing: Net weight 25kg / bag, 250kg / bag, 300kg / bag,400kg / bag, 473kg / bag,585kg / bag, 612.5kg / bag, 615kg / bag,700kg / bag,907kg / bag, plastic woven.
Storage and Packaging
Paraformaldehyde instead of ordinary industrial formaldehyde solution, in the synthesis of pesticides, synthetic resins, paints and fumigation disinfectants and other downstream products for a variety of formaldehyde, both to reduce dehydration energy consumption, but also greatly reduce the amount of wastewater treatment, which is a benefit of the people green projects. Paraformaldehyde is a solid particle that is more effective than industrial formaldehyde and is good for chemical synthesis such as chemical industry and pharmaceutical industry as well as other industrial fields. Especially, paraformaldehyde is widely used in the synthesis of raw materials that require anhydrous formaldehyde. It can also be used as a disinfectant, bactericide, fumigant and herbicide as well as in the manufacture of resins and artificial ivory etc.
Use for organic chemicals, synthetic resin raw materials, but also as a drug fumigant, paraformaldehyde formaldehyde content of solid formaldehyde, was solid particles, easy to store and transport. At higher temperatures can become formaldehyde vapor, easy to replace high concentrations of formaldehyde to participate in a variety of reactions, is conducive to chemical, pharmaceutical and other chemical synthesis and other industrial applications, especially in the use of anhydrous formaldehyde as a raw material for the synthesis, has a widely application.
Mainly in the following areas
① Pesticides: synthetic acetochlor, butachlor and glyphosate, etc .; ② Paint: synthetic high-grade automotive paint;
③ Resin: synthetic urea-formaldehyde resin, phenolic resin, polyacetal resin, melamine resin, Ion exchange resins, and various adhesives;
④ Paper: synthetic paper reinforcing agent;
⑤ Casting: sand stripping agent, synthetic casting adhesives;
⑥ Aquaculture industry: fumigation disinfectants.
⑦ Organic raw materials: for the preparation of pentaerythritol, trimethylolpropane, glycerol, acrylic acid, methyl acrylate, methacrylic acid, N-hydroxy methacrylamide, alkyl phenol, methyl vinyl ketone and so on.
⑧ Others: medicine and disinfection.