| Customization: | Available |
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| CAS No.: | 935-79-5 |
| Formula: | C8h8o3 |
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Tetrahydrophthalic anhydride (THPA) is an important organic compound with the chemical formula C8H8O3 and a molecular weight of 152.147. The physical and chemical properties of tetrahydrophthalic anhydride include:
Density: 1.3±0.1 g/cm³
Boiling point: 302.3±11.0 °C at 760 mmHg or 305.6±42.0 °C at 760 mmHg
Melting point: 69-73 °C
Flash point: 146.1±16.5 °C or 148.3±25.1 °C
Appearance: White to pale yellow powder
Solubility: Soluble in toluene and benzene, insoluble in water
Uses
Tetrahydrophthalic anhydride has a variety of applications in the industrial and chemical fields, mainly including:
Modifier for alkyd resins: used to improve the performance and processing characteristics of resins.
Epoxy resin curing agent: enhances the hardness and heat resistance of epoxy resins.
Unsaturated polyester resins: used to make plastics and composite materials.
Pesticide and pharmaceutical raw materials: It is used as a key ingredient in the pesticide and pharmaceutical industries.
Safety
Tetrahydrophthalic anhydride needs to pay attention to its safety and stability during storage and use:
Moisture sensitive: It needs to be protected from moisture during storage.
Irritant: It is irritating and needs fire prevention.
Storage conditions: It should be stored in a cool, dry and ventilated place to avoid direct contact with air.
In summary, tetrahydrophthalic anhydride is an important chemical raw material, widely used in many industrial fields, but its use and handling must strictly comply with safety regulations.
| Density | 1.3±0.1 g/cm3 |
| Boiling point | 305.6±42.0 °C at 760 mmHg |
| Melting point | 98-102ºC |
| Molecular formula | C8H8O3 |
| Molecular weight | 152.147 |
| Flash point | 148.3±25.1 °C |
| Exact mass | 152.047348 |
| PSA | 43.37 |
| LogP | 0.1 |
| Appearance | White to pale yellow flakes |
| Vapor pressure | 0.0±0.6 mmHg at 25°C |
| Refractive index | 1.529 |
| Storage conditions | Keep the container sealed and store in a cool, dry place to prevent moisture. |
| Stability | Stable at room temperature and pressure, avoid contact with oxides. Contact with water generates tetrahydrophthalic acid. This product is low in toxicity. Contact with water generates acid, which is corrosive. When in contact with skin, wash immediately with soapy water. Operators should wear protective equipment. |
| Water solubility | Soluble in: toluene, benzene; slightly soluble in: ether |
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