順酐是一種大宗品原料，又稱失水蘋果酸酐、順丁烯二酸酐、順酐，是順丁烯二酸的酸酐，室溫下為有強烈刺激性氣味的白色晶體，化學式為C4H2O3。
Maleic anhydride is a bulk raw material, also known as dehydrated malic anhydride, maleic anhydride, or maleic anhydride. It is an anhydride of maleic acid and is a white crystal with a strong pungent odor at room temperature. The chemical formula is C4H2O3.
用途：主要用于生產不飽和聚酯樹脂、醇酸樹脂、農藥馬拉硫磷、低毒農藥4049、長效碘胺的原料。也是涂料、馬來松香、聚馬來酐、順酐-苯乙烯共聚物。也是生產油墨助劑、造紙助劑、增塑劑和酒石酸、富馬酸、四氫呋喃等的有機化工原料。用作環氧樹脂的固化，在有機合成中可用于制造丁二酸、丁二酸酐等。在醫藥工業中用作制造長效磺胺等藥物。食品工業中用于制造酸味劑蘋果酸及酒石酸等。
Usage: Mainly used as raw material for the production of unsaturated polyester resin, alkyd resin, pesticide malathion, high-efficiency and low toxicity pesticide 4049, and long-acting iodamine. It is also a coating, maleic rosin, polymaleic anhydride, and maleic anhydride styrene copolymer. It is also an organic chemical raw material for producing ink additives, papermaking additives, plasticizers, and tartaric acid, fumaric acid, tetrahydrofuran, etc. Used for curing epoxy resins and in organic synthesis to manufacture succinic acid, succinic anhydride, etc. Used in the pharmaceutical industry to manufacture long-acting sulfonamide and other drugs. Used in the food industry to manufacture acid flavoring agents such as malic acid and tartaric acid.
本品用作環氧樹脂的固化劑。本品是重要的基本有機原料之一，主要用于制不飽和聚酯樹脂、醇酸樹脂、尼龍-4等，也是生產紙張處理劑、膠黏劑、油墨、油漆、劑、除草劑、殺蟲劑、植物生長調節劑的主要原料。
This product is used as a curing agent for epoxy resin. This product is one of the important basic organic raw materials, mainly used for the production of unsaturated polyester resin, alkyd resin, nylon 4, etc. It is also the main raw material for the production of paper treatment agents, adhesives, inks, paints, fungicides, herbicides, insecticides, and plant growth regulators.
儲運
storage and transportation
應貯存于陰涼干燥處。防止雨淋和日曬。貯存期為3個月。
Store in a cool and dry place. Protect from rain and sunlight. The storage period is 3 months.
包裝：
Packaging:
內襯塑料袋，外套編織袋包裝，凈重25kg、50kg；也可用內襯塑料袋，外裝鐵桶或木桶包裝，凈重50kg。
Lined with plastic bags and wrapped in woven outer bags, with a net weight of 25kg and 50kg; It can also be lined with plastic bags and packaged in iron or wooden barrels, with a net weight of 50kg.
