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常見(jiàn)問(wèn)題
順丁烯二酸酐的用途
The uses of maleic anhydride
制造聚酯樹(shù)脂、醇酸樹(shù)脂、農(nóng)藥、富馬酸、紙張?zhí)幚韯┑取?順酐是重要的有機(jī)化工中間體，可用于制作塑料工業(yè)中的增塑劑；造紙業(yè)中的紙張?zhí)幚韯缓铣蓸?shù)脂產(chǎn)業(yè)中的不飽和聚脂樹(shù)脂；涂料業(yè)中的醇酸型涂料；農(nóng)藥中的馬拉硫磷的合成；醫(yī)藥產(chǎn)業(yè)中磺胺藥品的等。
Manufacturing polyester resin, alkyd resin, pesticides, fumaric acid, paper processing agents, etc. Maleic anhydride is an important organic chemical intermediate that can be used to produce plasticizers in the plastic industry; Paper processing agents in the paper industry; Unsaturated polyester resin in the synthetic resin industry; Alkyd coatings in the paint industry; The synthesis of malathion in pesticide production; The production of sulfonamide drugs in the pharmaceutical industry.
近年來(lái)以其為主要原材料的丁二酸、酒石酸產(chǎn)業(yè)迅速擴(kuò)大，其在工程建筑、食品調(diào)味劑、生物拆分劑等領(lǐng)域的應(yīng)用得以不斷擴(kuò)大。
In recent years, the industries of succinic acid and tartaric acid, which are mainly used as raw materials, have rapidly expanded, and their applications in engineering construction, food seasoning agents, biological separators, and other fields have been continuously expanding.
順丁烯二酸酐的物化性質(zhì)
Physical and chemical properties of maleic anhydride
常溫下白色顆粒狀、針狀、片狀、棒狀、塊狀或塊團(tuán)狀，具有強(qiáng)刺激性。相對(duì)密度1.48，熔點(diǎn)52.8℃，沸點(diǎn)202.2℃，在較低溫度下(60-80℃)也能升華，能溶于醇、乙醚和丙酮，與水作用生成順丁烯二酸。可燃、其蒸汽和粉塵與空氣混合，可形成爆炸混合物。
At room temperature, white particles, needles, flakes, rods, blocks, or clumps are highly irritating. Relative density 1.48, melting point 52.8 ℃, boiling point 202.2 ℃. It can sublimate at lower temperatures (60-80 ℃) and is soluble in alcohols, ether, and acetone. It reacts with water to form maleic acid. Combustible, its vapor and dust can mix with air to form explosive mixtures.
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