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順酐（Maleic Anhydride）
Maleic Anhydride
定義：順酐，也稱為順丁烯二酸酐，是一種化學物質，化學式為C4H2O3。
Definition: Maleic anhydride, also known as maleic anhydride, is a chemical substance with the chemical formula C4H2O3.
物理性質：
physical property:
無色或白色晶體，具有強烈的刺激性氣味。
Colorless or white crystals with a strong irritating odor.
熔點為51-56℃，沸點為202℃。
The melting point is 51-56 ℃, and the boiling point is 202 ℃.
化學性質：
chemical property:
可溶于乙醇、乙醚和丙酮，但難溶于石油醚和四氯化碳。
Soluble in ethanol, ether, and acetone, but insoluble in petroleum ether and carbon tetrachloride.
可以與熱水作用形成馬來酸。
It can react with hot water to form maleic acid.
馬來酸酐（Maleic Anhydride）
Maleic Anhydride
定義：馬來酸酐實際上就是順酐，又稱失水蘋果酸酐、順丁烯二酸酐。
Definition: Maleic anhydride is actually maleic anhydride, also known as dehydrated malic anhydride or maleic anhydride.
物理性質（與順酐相同）：
Physical properties (same as maleic anhydride):
無色或白色晶體，具有強烈的刺激性氣味。
Colorless or white crystals with a strong irritating odor.
密度、熔點、沸點等物理常數與順酐相同。
The physical constants such as density, melting point, and boiling point are the same as those of maleic anhydride.
化學性質（與順酐相同）：
Chemical properties (same as maleic anhydride):
可溶于水和多種有機溶劑。
Soluble in water and various organic solvents.
具有強烈的刺激性氣味。
Has a strong pungent odor.
在有機合成中，可用于制備多種化合物，如聚酯樹脂、醇酸樹脂等。
In organic synthesis, it can be used to prepare various compounds, such as polyester resin, alkyd resin, etc.
總結
summary
順酐和馬來酸酐實際上是同一種化學物質，只是稱呼上有所不同。它們在物理性質和化學性質上完全相同，都是無色或白色晶體，具有強烈的刺激性氣味，可用于多種有機合成和工業中。
Maleic anhydride and maleic anhydride are actually the same chemical substance, but their names are different. They have identical physical and chemical properties, both colorless or white crystals with strong pungent odors, and can be used in various organic synthesis and industrial production.
本文由順酐廠家友情奉獻.更多有關的知識請點擊:http://www.ddqlbz.cn真誠的態度.為您提供為的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.
This article is a friendly contribution from maleic anhydride manufacturers. For more information, please click: http://www.ddqlbz.cn Sincere attitude. We will provide you with comprehensive service. We will gradually contribute more relevant knowledge to everyone. Stay tuned
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