Overview
Phthalic anhydride is an organic compound widely used in industrial chemistry, particularly in the production of plasticizers for PVC and other polymers. It is derived from the oxidation of ortho-xylene or naphthalene. Its reactivity makes it a key intermediate in synthesizing phthalate esters, dyes, and resins. Due to its versatile applications, it holds significant importance in the chemical manufacturing sector.
Physical and Chemical Properties
Phthalic anhydride appears as white crystalline flakes or powder with a characteristic sharp odor. It sublimates readily upon heating and reacts vigorously with water to form phthalic acid. Its molecular structure allows it to participate in esterification and polymerization reactions, making it indispensable in producing alkyd resins and unsaturated polyester resins. The compound is stable under normal conditions but must be protected from moisture to prevent hydrolysis.
Main Applications
The primary use of phthalic anhydride is in the manufacture of plasticizers, which account for over 50% of its global consumption. These plasticizers enhance the flexibility of PVC products like cables, flooring, and synthetic leather. Additionally, it serves as a precursor for dyes, pigments, and pharmaceuticals. Its role in producing alkyd resins for paints and coatings further underscores its industrial significance.
Safety and Storage
Phthalic anhydride is classified as an irritant, causing skin, eye, and respiratory tract irritation upon exposure. Proper handling requires gloves, goggles, and ventilation to minimize risks. Storage should be in tightly sealed containers placed in cool, dry environments. Avoid contact with water or strong oxidizers to prevent hazardous reactions. Spills should be neutralized with alkaline solutions and cleaned promptly.
B2B Procurement Guide
When procuring phthalic anhydride, prioritize suppliers with certifications like ISO or REACH compliance to ensure quality. Bulk shipments typically offer cost advantages, but verify logistics for safe transportation. Key procurement considerations include purity (≥99.5%), moisture content (≤0.1%), and packaging integrity. Long-term contracts may provide price stability amid market fluctuations.
Related Manufacturers
- 主营：顺丁烯二酸酐、碳酸丙烯酯、乙二醇二醋酸酯、油漆油墨稀释剂
- 主营：多聚甲醛、环己胺、正硅酸乙酯28 40、铬酸酐、正十二烷、异丙醇、无水乙醇、亚氯酸钠、二甲基甲酰胺、硫酸羟胺、戊二酸二甲酯、邻苯二甲酸二乙酯、二甲苯、二氯甲烷、环己烷、四氯乙烯、环己酮、环氧氯丙烷、甲醇、甲酸、乙腈、苯酚、乙二醇乙醚醋酸酯、醋酸丁酯
- 主营：科思创、阻燃剂、igmresins、盛禧奥、乳化剂、热熔胶、催化剂、共聚物、固化剂、苏达山、共荣社、意慕利、胶粘剂、苯甲醇、聚丙烯、消泡剂、硫酸钡、成核剂、丁二烯、东洋纺、添加剂、润滑剂、橡胶nbr、亨斯迈、聚酰胺
- 主营：ADMER三井粘合树脂、Nucre粘合树脂、Elvaloy改性树脂、马来酸酐接枝、PP马来酸酐接枝、PE接枝马来酸酐、接枝GMA、Surlyn沙林树脂
- 主营：戊二醇、己二酸、二甲胺、丙酸酐、碘化钾、稀释剂、异辛醇、乳化剂、正辛醛、香皂香料、丁酸丁酯、六氢苯甲、红松果实、丁酸乙酯、二苯甲酮、盐酸羟胺、六氟二酐、十一烯醛、光稳定剂、己内酰胺、乙醇酸钠、2-溴苯甲醇、2-氯丙烯腈、4-氯苯甲醇、对甲苯磺酸、染料中间体
- 主营：二甲苯、环保溶剂、丙二醇甲醚、二乙二醇乙醚、涂料成膜助剂
- 主营：阻燃剂、拉那白、牛儿酮、十二烯基丁二酸酐、海藻糖、热敏蓝、萘磺酸、氯菊酯、硫酸锌、催化剂、杨梅酯、檀香醚、聚醚胺、吸收剂、脂檀油、苍术素、羟钴胺、转移剂、溶剂绿、麝香酮、王浆酸、芬多精、纤维素、新戊酯、王冠醚、遮甜粉
- 主营：乙二醇、戊二醛、环己酮、异丙醇、二甲苯、安息油、清洗剂、正丁醇、醋酸丁酯、二氯丙烷、三氯乙烯、醋酸甲酯、无水乙醇、二氯甲烷、二氯乙烷、环保溶剂、金属洗涤剂、醋酸仲丁酯、涂料稀释剂、碳酸二甲酯、油墨稀释剂、环保化工溶剂、无色透明液体
- 主营：除油剂、乙酰氯、凡士林、铭酸酐、硫酸铜、异丙醇、三乙胺、漂白粉、丙烯酸、硬脂酸、制冷剂、石油醚、清洗剂、脱硝剂、二氯甲烷、涂料油墨、正丁酰氯、盐酸羟胺、印染助剂、四氢呋喃、环氧丙烷、偏硅酸钠、过硫酸钠、氢氧化钾、橡胶助剂
- 主营：镭雕粉、镭雕母粒、镭雕助剂、马来酸酐接枝pp、阻燃剂、阻燃母粒、抗滴落剂、增韧剂、润滑剂、相容剂、成核剂、抗氧化剂、磷酸酯类阻燃剂、开口爽滑剂、紫外线吸收剂
- 主营：二氧化硒、对甲苯磺酸、黄血盐钠、丁二酸酐、黄血盐钾、苯甲酸、环烷酸、戊二醛、磺化钛氰钴、盐酸羟胺、过氧化苯甲酰、衣康酸、聚丙烯酸酯乳液、癸甲溴铵、癸甲氯铵、4丁炔二醇、马日夫盐、氟硅酸镁、聚乙烯吡咯烷酮k30、磷酸三丁酯、聚六亚甲基双胍、黄丹粉、红丹粉、牛肉浸膏、HEDP
- 主营：阻燃剂、催化剂、水杨酸、纳迪克酸酐、二苯基、酰亚胺、正磷酸、烟酰胺、曲酸粉、氯化锌、异丙醇、化妆品、初油酸、脂肪醇、生石灰、甲基异、碳酸锌、碳酸锂、活性炭、乙二胺、三氮唑、着色剂、环己酮、防冻液、抗氧剂、亚磷酸
- 主营：PP、PE、ABS、POM、PC、POE、EVA、德国朗盛、美国杜邦、日本宝理pom、韩国LG、奇美abs、pom900p、工程塑料、PPO、TPU、PET
- 主营：异辛醇、乳化剂、乙烯醚、苯乙烯马来酸酐树脂、醚羧酸、脂肪醇、分散剂、染色助剂、聚乙二醇、异构醇醚、泊洛沙姆、椰油酰胺、基羟乙基、烷基糖苷、特辛基酚、聚氧乙烯、嵌段聚醚、单油酸酯、异构十三醇、丙烯磺酸钠、氢化蓖麻油、丙烯酰胺基、醇醚葡糖苷、低泡渗透剂、甲酯乙氧基、癸基葡糖苷
- 主营：甘氨酸、水苏糖、阻燃剂、四羧酸酐、硫酸锌、硫酸锆、硫酸锂、硫酸锶、硫酸锰、铝酸锌、1680-21-3、牛磺酸、褪黑素、磷酸铁、丙酸铵、苏云金、碳酸镁、麝香酮、肉桂醛、磷酸铝、王浆酸、椰油胺、赖氨酸、增塑剂、浸膏粉、乙氧基
- 主营：架桥剂、YW100 锂萃取剂、端羧基液体丁腈橡胶、10-羟基癸酸、苯乙烯磷酸、肉豆蔻酸镁、硬脂酸钴、全氟三丁胺、乙烯基磷酸二乙酯、磷酸锰铁锂、β-磷酸三钙、十一烯酸、钨酸铝、1-乙炔基环已醇、间二异丙苯、锂硅合金、溴甲酚绿、生物活性玻璃、溴代海因树脂颗粒、红铝、龙涎酮、原丁酸三甲酯
- 主营：化学品、香精香料、试剂、二羧酸酐、中间体、有机硅、橡胶树脂、催化剂、纳米材料