Overview
2-Methylnaphthalene is an organic compound belonging to the polycyclic aromatic hydrocarbon (PAH) family. It is structurally similar to naphthalene but with a methyl group substituted at the 2-position. This modification alters its physical and chemical properties, making it useful for specialized industrial applications. The compound occurs naturally in coal tar and petroleum, but is primarily produced synthetically for commercial use. Its aromatic nature and chemical stability make it valuable as a building block in organic synthesis and manufacturing processes.
Physical and Chemical Properties
2-Methylnaphthalene appears as white crystalline flakes or powder with a characteristic aromatic odor. It has a relatively low melting point (34-36°C) and sublimes at room temperature, which requires careful handling during storage and transportation. Chemically, it exhibits typical aromatic hydrocarbon behavior. The methyl group increases its reactivity compared to unsubstituted naphthalene, particularly in electrophilic substitution reactions. It is insoluble in water but dissolves readily in most organic solvents, a property that facilitates its use in various industrial processes.
Main Applications
The primary use of 2-methylnaphthalene is as an intermediate in the production of dyes and pigments. It serves as a precursor for vitamin K synthesis and other pharmaceutical compounds. In the plastics industry, it's used in the manufacture of specialty resins with improved thermal properties. Additional applications include its use as a component in insect repellents and as a starting material for synthetic lubricants. The compound's ability to form charge-transfer complexes makes it valuable in certain electronic applications and organic semiconductor research.
Safety and Storage
As a flammable solid, 2-methylnaphthalene requires careful handling. Storage should be in tightly sealed containers away from heat sources and oxidizing agents. The substance can form explosive dust-air mixtures, necessitating proper ventilation in work areas. Personal protective equipment including gloves, goggles and respiratory protection should be used when handling the compound. In case of spills, absorb with inert material and dispose according to local regulations. Long-term exposure may cause skin sensitization and respiratory irritation.
B2B Procurement Guide
When sourcing 2-methylnaphthalene, buyers should specify required purity levels which typically range from 95% to 99%. Technical grade is sufficient for many industrial applications, while pharmaceutical applications may require higher purity. Consider transportation requirements as the material is classified as hazardous. Verify supplier compliance with relevant safety regulations (OSHA, REACH, etc.). Bulk purchases (ton quantities) typically offer significant cost advantages over small-quantity orders. Quality certifications and batch analysis reports should be requested for critical applications.
Related Manufacturers
- 主营：聚乙烯亚胺、三甘醇二异辛酸酯3G8、三硫代碳酸钠40%、TS-1钛硅分子筛、5-甲基靛红、六氯环三磷腈、烷基苯磺酸酯、苯基次磷酸钠、甲巯咪唑、吡啶硫酮锌、焦磷酸哌嗪、热敏材料、油酸甲酯、曲酸
- 主营：三硫代碳酸钠、聚乙烯亚胺、三乙二醇二异辛酸酯、红色素-16、巯基苯并噻唑钠、L-丙交酯、石油酯-T50、乙交酯、多元醇苯甲酸酯、热压敏染料、光稳定剂、高分子降解材料
- 主营：聚苯胺、脯氨酸甲酯盐酸盐、苄基三甲基氯化铵
- 主营：肌氨酸钠、硫化锰、V50偶氮二异丁脒盐酸盐、PX-4MP、腰果酚缩水甘油醚、乙硫氮、二新癸酸二甲基锡、三硫代碳酸钠、芥酸PKO、四氧化三锰
- 主营：甲基萘并、麦芽糖酸、苯氧基环磷腈、甲巯基四氮唑
- 主营：棕榈酸、乙酸铋、异喹啉、2-乙二硫醇、4-二氟苄溴|、3-丙烷磺内酯、胶粘剂、丙烯酸酯、化学试剂、分析试剂、透明液体、二乙二醇、光引发剂、岩白菜素、对甲苯磺酸、苯甲酸苄酯、偏苯三酸酐、六氟异丙醇、纳米氧化铽、六氟磷酸铯、表面活性剂、蓖麻醇酸锌、乙基纤维素、荧光指示剂、丙烯酸羟乙酯
- 主营：碘甲苯、阻燃剂、碘丙烷、3.4-二氟、2-丙二醇、cas627-30-5、cas766-85-8、1-碘辛烷、1-碘己烷、cas107-05-1、cas585-79-5、cas150-19-6、cas831-82-3、碘丁烷、溴苯胺、碘癸烷、苯乙酮、碘苯胺、碘乙烷、苯甲酸、溴苯酚、苯甲腈、ab黑白料、苯甲酰胺、聚碳酸酯
- 主营：聚维酮碘、磺酸二钠盐、间溴硝基苯、甲基萘并、己二酰氯、柠檬酸钴、溴化镍、氟化锌、焦锑酸钾、硫化钡、苯磺酰氯
- 主营：吡咯酯、藜芦酮、麦芽酚、3-吲哚甲醛、7-羟基香豆素、4-羟基香豆素、6-氰基-2-萘酚、5-甲氧基色胺、6-甲基香豆素、β-氯代苯乙烷、铃兰醛、吴茱萸碱、聚谷氨酸、农药中间体
- 主营：壬二酸、乙蒜素、氨乙基、143487-47-2、6-二氯苯腈、3，4-二氟苯腈、防腐剂、三唑硫酮、羟基硅油、邻氯苯腈、二碳二酸、玫瑰精贝司、戊二烯二环、基三甲氧基、己二胺哌啶、苯基噻唑脲、基二苯甲烷、氯代异丙烷、甘油基氨基、椰油酰胺丙基、甲基丙烯酸六、色谱分析试剂、双六氟磷酸盐、甲基苯甲酰胺、邻氰基苯甲醛
- 主营：甘氨酸、溴化物、蒽甲酸、甲基萘并、联吡啶、紫苏葶、锂电池、牛磺酸、褪黑素、磷酸铟、新癸酸、赖氨酸、溴化鏻、乙氧基、藏花醛、豆甾醇、羟乙基、维素酶、庚二酸、呋虫胺、丹参素、萘甲醛、槐豆胶、黄柏酮、元明粉、乙氨基
- 主营：硫酸烟酰苯胺、聚苯胺、硫酸阿托品、N-油酰肌氨酸、表面活性剂、光引发剂、离子液体、乙基纤维素、缓蚀剂、OB酸
- 主营：胆酸、半叶素、二羟基吲哚、L-丙交酯、缩合剂、生物缓冲液、表面活性剂、硅烷偶联剂、光电材料中间体、精细化工
- 主营：硫酸铝、硫酸铁、除草剂、萘并噻唑、芥花籽油、全氟萘烷、桂花精油、乳清酸锂、分析试剂、无色液体、香精香料、农药中间体、淡黄色液体、巯基乙酸钙、化工催化剂、乙酰基六肽、医药中间体、表面活性剂、香料化合物、草酸二水合物、三硫代碳酸钠、二硫氰基甲烷、甲基天冬氨酸、精胺四盐酸盐、苯乙烯化苯酚、硫脲类促进剂
- 主营：百里香酚、戊基黄药、矿物浮选剂