POLY(OXYMETHYLENE), ACETATE END-CAPPED
PARAFORMALDEHYDE
CAS: 25231-38-3
Molecular Formula: C3H6O3X2
POLY(OXYMETHYLENE), ACETATE END-CAPPED - Names and Identifiers
POLY(OXYMETHYLENE), ACETATE END-CAPPED - Physico-chemical Properties
| Molecular Formula | C3H6O3X2 |
| Molar Mass | 90.08 |
| Density | 1.42g/mLat 25°C |
| Melting Point | 175°C |
| Flash Point | 158°F |
| Solubility | chlorophenol above 70°C: soluble |
| Vapor Presure | <1.45 mm Hg ( 25 °C) |
| Vapor Density | 1.03 (vs air) |
| Appearance | prilled |
| Color | White |
POLY(OXYMETHYLENE), ACETATE END-CAPPED - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | 31 - Contact with acids liberates toxic gas |
| Safety Description | 36 - Wear suitable protective clothing. |
| UN IDs | UN 2213 4.1/PG 3 |
| WGK Germany | 3 |
| RTECS | RV0540000 |
POLY(OXYMETHYLENE), ACETATE END-CAPPED - Introduction
Paraformalhyde is a compound formed by the binding of formaldehyde molecules by covalent bonds. It has the following main properties:
1. Appearance: PARAFORMALDEHYDE is a white or slightly yellow crystalline solid.
2. Solubility: parformaldehyde has poor solubility in water, but it can be dissolved in organic solvents, such as ethanol, acetone and benzene.
3. Melting Point: PARAFORMALDEHYDE has a lower melting point, generally between 60-70 ° C.
4. Stability: It is relatively stable and not easy to decompose under regular conditions.
The main uses of paraformalhyde include:
1. Material synthesis: as a raw material for organic synthesis, PARAFORMALDEHYDE is often used to synthesize polymers or resins with specific functions, such as formaldehyde resins, urea-aldehyde resins, etc.
2. Surface treatment agent: PARAFORMALDEHYDE can be used as a surface treatment agent with exaggeration and corrosion resistance to improve the performance of materials such as fibers, wood, plastics and metals.
3. Cosmetics: It is also used as an additive in certain cosmetics, such as skin care products, perfumes and shampoos.
Preparation Box:
Parformalhyde can be prepared by the reaction of formaldehyde and catalyst. Commonly used catalysts are acidic catalysts and basic catalysts. For example, under acidic conditions, formaldehyde can react with itself in the presence of a keto base to form a PARAFORMALDEHYDE.
Safety Information:
1. PARAFORMALDEHYDE has a certain degree of irritation and may cause irritation to the eyes and skin. Therefore, care should be taken to avoid contact with eyes and skin during handling and use.
2. During the preparation process, appropriate ventilation and protective measures should be taken to avoid inhalation of PARAFORMALDEHYDE gas.
3. In the process of storage and transportation, should avoid high temperature, fire and oxidant contact, to prevent the occurrence of fire or explosion and other hazards.
4. If PARAFORMALDEHYDE is ingested or inhaled by mistake, please seek medical attention as soon as possible and provide relevant information.
1. Appearance: PARAFORMALDEHYDE is a white or slightly yellow crystalline solid.
2. Solubility: parformaldehyde has poor solubility in water, but it can be dissolved in organic solvents, such as ethanol, acetone and benzene.
3. Melting Point: PARAFORMALDEHYDE has a lower melting point, generally between 60-70 ° C.
4. Stability: It is relatively stable and not easy to decompose under regular conditions.
The main uses of paraformalhyde include:
1. Material synthesis: as a raw material for organic synthesis, PARAFORMALDEHYDE is often used to synthesize polymers or resins with specific functions, such as formaldehyde resins, urea-aldehyde resins, etc.
2. Surface treatment agent: PARAFORMALDEHYDE can be used as a surface treatment agent with exaggeration and corrosion resistance to improve the performance of materials such as fibers, wood, plastics and metals.
3. Cosmetics: It is also used as an additive in certain cosmetics, such as skin care products, perfumes and shampoos.
Preparation Box:
Parformalhyde can be prepared by the reaction of formaldehyde and catalyst. Commonly used catalysts are acidic catalysts and basic catalysts. For example, under acidic conditions, formaldehyde can react with itself in the presence of a keto base to form a PARAFORMALDEHYDE.
Safety Information:
1. PARAFORMALDEHYDE has a certain degree of irritation and may cause irritation to the eyes and skin. Therefore, care should be taken to avoid contact with eyes and skin during handling and use.
2. During the preparation process, appropriate ventilation and protective measures should be taken to avoid inhalation of PARAFORMALDEHYDE gas.
3. In the process of storage and transportation, should avoid high temperature, fire and oxidant contact, to prevent the occurrence of fire or explosion and other hazards.
4. If PARAFORMALDEHYDE is ingested or inhaled by mistake, please seek medical attention as soon as possible and provide relevant information.
Last Update：2024-04-09 20:48:19
