paraformaldehyde CAS 30525-89-4 for resin glue plywood industry

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Product Overview

Description


Product Description

Paraformaldehyde

Paraformaldehyde
CAS RN:\t30525-89-4
Molecular formula\t(CH2O)n
Molecular weight:\t30n
Physical State: Powder or granular
Color: white
Odor: strong, pungent - formaldehyde
pH: 3.5-5.0 @ 10% aq.sol.
Uses\t:
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 industry and particleboard.

Use of Kemele 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.

Specifications:

\t
Item
\t
Top grade
\t
First grade
\t
Formaldehyde  %
\t
96%±1
\t
≥95%
\t
Ash
\t
≤0.026%
\t
≤0.026%
\t
Acidity (as Formaldehyde)
\t
≤0.025%
\t
≤0.025%
\t
PH value (10% 25“℃)
\t
4.0-7.0
\t
4.0-7.0
\t
Fe
\t
≤0.002%
\t
≤0.002%
\t
Appearance
\t
White powder or granule
\t
White powder or granule

Properties:


1, white combustible crystalline powder with the flavor of formaldehyde;
2, soluble in water and release formaldehyde; dissoluble in ethanol and diethyl ether; soluble in caustic soda;
3, release formaldehyde when meet strong acids, alkali or high temperature;
Usages & Applications:
1, farm chemical: composite acetochlor, butachlor, ect
2, paint: composite high-end automobile paint
3, resin: composite urea resin, phenolic resin, ect. and various adhesives
4, papermaking: composite paper intensifier
5, casting: casting remover and adhesive of casting synthesis
6, cultivation industry: fumigation disinfectant
7, organic raw materials: for the production of glycerol, crylic acid, and so on
8, others: medicine and disinfection

Harm For health:
1 strong irritant for respiratory tract and cause rhinitis, pharyngitis, pheumonia and pulmonary edema
2, irritate to skin and will cause skin red and swollen, and even dry, chap and desquamation after long contacting
3, irritate digestive tract if take orally, causing stomatitis, pharyngitis, gastritis, fierce stomachache and coma

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Packing & Delivery


Packaging details: 25/50/500/1000kg plastic woven bags


0.0151 s.