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รายละเอียดสินค้า:
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| Purity: | ≥ 96% | Stability: | Stable under normal conditions |
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| Appearance: | White crystalline solid | Chemical formula: | C2H6O2 |
| Class: | 4.1 | Packaging: | 25ka/bag |
Chemical Raw Material Production Simplified With White Crystalline PFA Paraformaldehyde
Paraformaldehyde is a white crystalline powder formed by the polymerization of formaldehyde, with the pungent smell of formaldehyde. Its chemical formula can be expressed as (CH₂O)ₙ (n is usually 8-100). It releases formaldehyde slowly at room temperature and decomposes even faster when heated. It is soluble in hot water, alcohols and strong alkaline solutions, but insoluble in organic solvents. As an important chemical raw material, paraformaldehyde is often used to produce high molecular materials such as phenolic resin and urea-formaldehyde resin. It can also be used as a disinfectant and preservative in agriculture (such as soil disinfection) and the medical field (such as a component of root canal treatment drugs), and can also participate in chemical reactions as a formaldehyde donor in organic synthesis. It should be noted that its dust is irritating to the respiratory tract and skin. Protective measures should be taken when using it.
| Index item | Specification | Result |
| Formaldehyde % | ≥96+1% | 96.08% |
| Ash % | ≤1.5% | 0.70% |
| Acidity (as Formaldehyde)% | ≤0.03% | 0. 018% |
| PH value (10%25°C) | 4.0-7.0 | 5.5-5.6 |
| Heavy Metal(Lead) | ≤0.00002 | 0.00001 |
| Fe % | ≤0.002% | 0. 001% |
| Grandule Distribution(Mesh) | ＞60 | 50.43% |
| 60-80 | 10.34% | |
| 80-100 | 3.44% | |
| 100-200 | 11.93% | |
| ＜200 | 20.86% | |
| Appearance | white powder andgranule | white powder andgranule |
1.When using paraformaldehyde, attention should be paid to its irritability and toxicity:
2.Dust exposure can irritate the respiratory tract, eyes and skin. Protective masks, gloves and goggles should be worn during operation.
3.Store in a dry and well-ventilated place, avoiding contact with oxidants and strong acids to prevent decomposition and the generation of formaldehyde gas.
4.Waste disposal must comply with environmental protection regulations to avoid polluting the environment.
5.Due to its highly efficient reactivity and stability, paraformaldehyde is used as a substitute for formaldehyde in industrial production, which not only reduces the risks of transportation and storage but also broadens the application scenarios of formaldehyde in solid-state reactions.
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