Paraformaldehyde CAS#30525-89-4
High-Performance Engineering Polymer
Polyoxymethylene (POM) is a high-molecular-weight polymer of formaldehyde, featuring a chain length of approximately 8 to 100 repeating units, offering excellent mechanical strength and stability.Excellent Heat Resistance
Long-chain polyoxymethylene is widely used in the production of heat-resistant engineering plastics, making it suitable for demanding industrial applications.Widely Recognized Material
Also known as polyoxymethylene plastics (POE), POM is commercially recognized under well-known brands such as DuPont’s Delrin®, reflecting its proven performance and reliability.Predictable Thermal Decomposition
When exposed to high temperatures, polyoxymethylene decomposes rapidly and releases formaldehyde with a slight odor, allowing for clear processing and safety considerations during use
Product Description of Paraformaldehyde (CAS No. 30525-89-4)
Paraformaldehyde, also known as polyoxymethylene (POM), is a high-molecular-weight polymer derived from formaldehyde, typically consisting of 8 to 100 repeating units. Long-chain polyoxymethylene is widely used in the manufacture of heat-resistant engineering plastics, commonly referred to as polyoxymethylene plastics (POE), and is commercially recognized under brands such as DuPont’s Delrin®.
Under elevated temperatures, polyoxymethylene decomposes readily and releases formaldehyde with a slight characteristic odor, making proper handling and processing conditions essential.
Parameters
| Melting point | 120-170 °C (lit.) |
| Boiling point | 107.25°C (rough estimate) |
| density | 0.88 g/mL at 25 °C (lit.) |
| vapor density | 1.03 (vs air) |
| vapor pressure | <1.45 mm Hg ( 25 °C) |
| refractive index | 1.4540 (estimate) |
| Fp | 158 °F |
| storage temp. | 2-8°C |
| solubility | chlorophenol above 70°C: soluble |
| form | prilled |
| color | White to off-white |
| PH | 5.5 (H2O, 20℃)(saturated solution) |
| Odor | odor of formaldehyde |
| PH Range | 4 - 5.5 |
| explosive limit | 7-73%(V) |
| Water Solubility | sparingly soluble |
| Merck | 147,025 |
| BRN | 102769 |
| Dielectric constant | 4.0（Ambient） |
| Stability: | Stable. Incompatible with strong acids, organic acids, strong oxidizing agents, oxides, alkalies, strong bases, amines. Combustible. Dust may form an explosive mixture with air. Liberates poisonous gases on combustion. |
| InChIKey | VHWYCFISAQVCCP-UHFFFAOYSA-N |
| EPA Substance Registry System | Paraformaldehyde (30525-89-4) |
Safety Information
| Hazard Codes | Xn,F |
| Risk Statements | 31-43-40-36/37/38-20/22-41-37/38-42/43-20/21/22-11 |
| Safety Statements | 36-45-36/37/39-26-24-22 |
| RIDADR | UN 2213 4.1/PG 3 |
| WGK Germany | 3 |
| RTECS | RV0540000 |
| Autoignition Temperature | 572 °F |
| TSCA | Yes |
| HazardClass | 4.1 |
| PackingGroup | III |
| HS Code | 38084090 |
| Hazardous Substances Data | 30525-89-4(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 592 mg/kg |
Product Application of Paraformaldehyde CAS#30525-89-4
Paraformaldehyde is mainly used in the production and use of herbicides, and is also used to make synthetic resins (such as artificial horn products or artificial ivory) and adhesives. It is also used in the chemical book pharmaceutical industry (active ingredients of contraceptive creams) and for the disinfection of pharmacies, clothes and beddings. Paraformaldehyde can also be used as a fumigant, fungicide and insecticide.
Factory and Equipment Show
