PARAFORMALDEHYDE
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Category：Paint chemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Mainly granular, stable quality, easy to transport and handle and operate, with superior solubility and applicability, widely used in synthetic resins, phenolic resins, urea resins, amine-based resins, melamine resins, coating resins, ion exchange resins, organic synthesis and other products.
Names and Identifiers
| Name | Paraformaldehyde |
| Synonyms | PARAFORM POLYACETAL ACETAL RESIN POLY(TRIOXANE) P-FORMALDEHYDE polyformaldehyde POLYACETAL RESIN Paraformaldehyde PARAFORMALDEHYDE ethyl methyl ether POLY(OXYMETHYLENE), ACETATE END-CAPPED |
| CAS | 30525-89-4 |
| EINECS | 608-494-5 |
| InChI | InChI=1/C3H8O/c1-3-4-2/h3H2,1-2H3 |
| InChIKey | VHWYCFISAQVCCP-UHFFFAOYSA-N |
30525-89-4 – Physico-chemical Properties
| Molecular Formula | （CH2O)n |
| Molar Mass | 90.08 |
| Density | 0.88 g/mL at 25 °C (lit.) |
| Melting Point | 120-170 °C (lit.) |
| Boling Point | 107.25°C (rough estimate) |
| Flash Point | 158°F |
| Water Solubility | sparingly soluble |
| Solubility | chlorophenol above 70°C: soluble |
| Vapor Presure | <1.45 mm Hg ( 25 °C) |
| Vapor Density | 1.03 (vs air) |
| Appearance | prilled |
| Color | White to off-white |
| Odor | odor of formaldehyde |
| Merck | 14,7025 |
| BRN | 102769 |
| PH | 5.5 (H2O, 20℃)(saturated solution) |
| Storage Condition | 2-8°C |
| 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 gas |
| Explosive Limit | 7-73%(V) |
| Refractive Index | 1.4540 (estimate) |
| Physical and Chemical Properties | |
| Use | It is used as a raw material for organic chemical industry and synthetic resin, and also used as a drug fumigant. |
30525-89-4 – Risk and Safety
| Risk Codes | R31 – Contact with acids liberates toxic gas R43 – May cause sensitization by skin contact R40 – Limited evidence of a carcinogenic effect R36/37/38 – Irritating to eyes, respiratory system and skin. R20/22 – Harmful by inhalation and if swallowed. R41 – Risk of serious damage to eyes R37/38 – Irritating to respiratory system and skin. R42/43 – May cause sensitization by inhalation and skin contact. R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. R11 – Highly Flammable |
| Safety Description | S36 – Wear suitable protective clothing. S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S24 – Avoid contact with skin. S22 – Do not breathe dust. |
| UN IDs | UN 2213 4.1/PG 3 |
| WGK Germany | 3 |
| RTECS | RV0540000 |
| TSCA | Yes |
| HS Code | 38084090 |
| Hazard Class | 4.1 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 592 mg/kg |
PARAFORMALDEHYDE: TECHNICAL DATA SHEET
| Category | Specifications |
|---|---|
| Chemical Name | Paraformaldehyde (Polymerized Formaldehyde) |
| CAS No. | 30525-89-4 |
| Molecular Formula | (CH₂O)ₙ (n = 8–100) |
| Appearance | White crystalline powder |
| Formaldehyde Content | 91–99% (w/w) |
| Melting Point | 120–170°C (depolymerizes) |
| Solubility | Insoluble in cold water, slowly soluble in hot water |
Key Properties
| Property | Performance Data |
|---|---|
| Depolymerization | Releases formaldehyde gas upon heating (>80°C) |
| Purity | ≥95% (industrial grade) |
| Bulk Density | 0.5–0.7 g/cm³ |
| Ash Content | ≤0.05% |
Applications
| Industry | Primary Uses |
|---|---|
| Disinfectants | Slow-release formaldehyde source |
| Resins Production | Urea/phenolic resin crosslinker |
| Agriculture | Soil fumigant, preservative |
| Chemical Synthesis | Reagent for Prins reaction |
Safety & Handling
| Parameter | Requirements |
|---|---|
| GHS Classification | H301, H311, H314, H317, H331, H335, H350 |
| Storage | Sealed, dry, <25°C (avoid heat/moisture) |
| PPE | Respirator, gloves, goggles |
References:
- Merck Index (16th Ed.)
- OSHA Formaldehyde Standard (29 CFR 1910.1048)
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