Maleic Anhydride (CAS: 108-31-6) です organic compound with the chemical formula C₄H₂O₃. それは 無色または白色の結晶固体 that has a pungent odor. Maleic anhydride is a highly reactive compound and is mainly used in the production of 不飽和ポリエステル樹脂, 可塑剤, and various other industrial chemicals.
主要なプロパティ:
- 外観: Maleic anhydride is a 無色または白色の結晶固体.
- 融点: It has a melting point of 52℃ (126°F).
- 沸点: Its boiling point is 202℃ (396°F).
- 溶解性: Maleic anhydride is soluble in alcohols, アセトン, エーテル, そして benzene, but only slightly soluble in water.
- 臭い: それは強いです, acrid odor that is characteristic of anhydrides.
一般的な用途:
- Unsaturated Polyester Resins: Maleic anhydride is a key component in the production of 不飽和ポリエステル樹脂. These resins are widely used in the manufacture of グラスファイバー, 自動車部品, そして コーティング.
- 可塑剤: Maleic anhydride is used in the synthesis of 可塑剤, particularly those for ポリ塩化ビニル (PVC), to increase flexibility and durability.
- 農業: の製作に使用されております 殺虫剤, including fungicides and herbicides. Maleic anhydride is also involved in plant growth regulators.
- Chemical Synthesis: Maleic anhydride is used in the production of pharmaceuticals, food additives, そして 接着剤. It is a precursor to a variety of chemicals such as 1,4-butanediol, succinic acid, そして tetrahydrofuran.
- Resins and Coatings: It is used to produce アルキド樹脂 そして コーティング, which are commonly used in paints, ワニス, and surface coatings for metal, wood, and plastics.
- Lubricants: Maleic anhydride is also involved in making lubricants, especially for high-performance automotive applications.
健康と安全:
- 毒性: Maleic anhydride can be harmful if inhaled, ingested, or in contact with the skin. It can cause 呼吸器への刺激, skin burns, そして 目の損傷. Protective equipment should be used when handling it.
- 環境への影響: It is considered hazardous to aquatic life and should be disposed of properly to prevent contamination of water sources.
結論:
Maleic anhydride is a highly reactive chemical used primarily in the production of 不飽和ポリエステル樹脂, 可塑剤, そして other chemical derivatives. It is essential in a range of industries, 含む automotive, construction, agriculture, そして コーティング. Proper handling and safety precautions are important due to its irritant properties and potential environmental impact.
