Paraformaldehyde
Details
Paraformaldehyde
CAS RN: 30525-89-4
Molecular formula (CH2O)n
Molecular weight: 30n
Physical State: Powder or granular
Color: white
Odor: strong, pungent - formaldehyde
pH: 3.5-5.0 @ 10% aq.sol.
Uses :
Paraformaldehyde is essentially a solid form of formaldehyde and therefore has the same uses as formaldehyde. For example paraformaldehyde reacts with either urea, melamine or resorcinol to produce resins used as binders in plywood and particleboard. Use of paraformaldehyde in resin production offers two major advantages as compared with aqueous formaldehyde: (1) more production from existing equipment and (2) less water (typically twenty fold less) to be removed from the reactor product.
Packaging details: 25/50/500/1000kg plastic woven bags
Specifications:
Index name |
Enterprises index value |
Tested result |
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Appearance |
White powder or granule |
White |
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Grade |
Top grade |
First grade |
Qualified product |
Top grade |
Formaldehyde % |
96%±1 |
≥95% |
≥92% |
96.08% |
Ash |
≤0.026% |
0.02% |
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Acidity (as Formaldehyde) |
≤0.025% |
0.01% |
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PH value (10%25℃) |
4.0-7.0 |
5.5-5.6 |
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Fe |
≤0.002% |
0.0012% |