Paraformaldehyde 96% CAS No.:30525-89-4
Other Names:Polyformaldehyde; Ethyl Methyl Ether
Molecular Formula:(CH2O)n
UN No.: 2213
HS No.:2912600000
CAS No.: 30525-89-4
EINECS No.: 200-001-8
Hazard Class: 4
Purity: 96%
Appearance: White Powder or Crystal Pearls
SPECIFICATIONS
Shijiazhuang Xinlongwei Chemical Co., Ltd.Our paraformaldehyde meets Chinese national standards, as well as European and American standards.
Item | PARAFormaldehyde |
Content | 96%min |
Acidity | 0.04% max |
Ash | 0.08% max |
Fe | 0.001% max |
PHYSICAL PROPERTIES
Paraformaldehyde (PFA) is the smallest polyoxymethylene, the polymerization product of formaldehyde with a typical degree of polymerization of 8–100 units. Paraformaldehyde commonly has a slight odor of formaldehyde due to decomposition. Paraformaldehyde is a poly-acetal.
Paraformaldehyde forms slowly in aqueous formaldehyde solutions as a white precipitate, especially if stored in the cold. Formalin actually contains very little monomeric formaldehyde; most of it forms short chains of polyformaldehyde. A small amount of methanol is often added as a stabilizer to limit the extent of polymerization.
PACKAGE
PackageDrum No.Net Weight per Drum Net Weight per 20'FCL
Bags880.0025 KG22 MT
Bags22.001000 KG22 MT
APPLICATION
paraformaldehyde is depolymerized, the resulting formaldehyde may be used as a fumigant, disinfectant, fungicide, and fixative. Longer chain-length (high molecular weight) polyoxymethylenes are used as a thermoplastic and are known as polyoxymethylene plastic (POM, Delrin).
Paraformaldehyde can be used as a substitute of aqueous formaldehyde to produce the resinous binding material, which is commonly used together with melamine, phenol or other reactive agents in the manufacturing of particle board, medium density fiberboard and plywood.
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