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| OEM | OEM Services Provided |
| Feature | Good stability |
| Classification | Paint Additives |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact Export Director now ↓ |
To manufacture formaldehyde by oxidation method, fresh air is mixed with process recirculation gas, which will be reacted in a fixed-bed reactor to produce formaldehyde gas catalyzed by a metal oxide catalyst, and the formaldehyde gas will be absorbed into semi-finished formaldehyde products by water through an absorption tower, which will be transferred to the formaldehyde barrel area and then adjusted to 14~44% finished products.
| Category | Specifications |
|---|---|
| Chemical Name | Formaldehyde (Formalin: 37-40% aqueous solution) |
| CAS No. | 50-00-0 (Formaldehyde), 30525-89-4 (Formalin) |
| Molecular Formula | CH₂O |
| Appearance | Colorless gas (pure); Clear liquid (Formalin) |
| Odor | Pungent, suffocating |
| Density (20°C) | 0.815 g/cm³ (gas), 1.09 g/cm³ (Formalin) |
| Boiling Point | -19°C (gas), 96°C (Formalin) |
| Flash Point | 85°C (Formalin, closed cup) |
| Property | Performance Data |
|---|---|
| Solubility | Miscible with water, alcohol, acetone |
| Reactivity | Strong reducing agent; polymerizes readily |
| Preservative Action | Effective bactericide/fungicide at 0.5-5% |
| pH (Formalin) | 2.5-4.5 (stabilized with methanol) |
| Vapor Pressure | 52 kPa (20°C, gas) |
| Industry | Primary Uses |
|---|---|
| Healthcare | Disinfectant, tissue preservation (10% Formalin) |
| Resins Production | Urea-formaldehyde, phenol-formaldehyde resins |
| Textiles | Anti-wrinkle finishing agent |
| Agriculture | Soil sterilant, seed treatment |
| Cosmetics | Nail hardeners (≤0.2% concentration) |
| Parameter | Requirements |
|---|---|
| GHS Classification | H301, H311, H314, H317, H331, H335, H350 |
| Exposure Limits (OSHA) | 0.75 ppm (TWA), 2 ppm (STEL) |
| PPE | Respirator, gloves, goggles, lab coat |
| Storage | Sealed containers, 15-25°C, ventilated area |
| Fire Fighting | Water spray, alcohol-resistant foam |
| Aspect | Data |
|---|---|
| VOC Status | Yes (Formalin contains methanol) |
| Biodegradability | Readily biodegradable (aqueous) |
| Atmospheric Lifetime | ~1 hour (reacts with hydroxyl radicals) |
| Regulatory Restrictions | Restricted in cosmetics (EU), listed as carcinogen (IARC Group 1) |
| Feature | Formaldehyde | Glutaraldehyde | Hydrogen Peroxide |
|---|---|---|---|
| Disinfection Efficiency | ★★★★ | ★★★★★ | ★★★☆ |
| Toxicity | High | Moderate | Low |
| Material Compatibility | Corrosive to metals | Less corrosive | Non-corrosive |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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