偏苯三酸酐（TMA）

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偏苯三酸酐即1,2,4—苯三甲酸酐，主要用于不饱和聚脂树脂、聚酰亚胺树脂、水溶性聚酯树脂、水溶性聚氨酯树脂、水溶性氨基醇酸树脂、PVC增塑剂、偏苯三酸三辛脂(TOTM)、环氧树脂固化剂、绝缘漆等产品原料。
偏苯三酸酐还可以用做航空润滑油、电力电容器浸渍油、粒料粘结剂、施胶剂、消烟剂、瞬时粘结剂、电影胶片、水处理剂，及生产耐热绝缘材料、胶粘剂、表面活剂及颜料、合成染料等。
偏苯三酸酐属于普通化学品，陆运，海运，空运均可，按照普通货物条件办理。
Trimellitic Anhydride is mainly used as raw material for polyester resin,polyimide resin,plasticizer TOTM ,and also be used for producing heatproof & insulating,adhesive,surfactant, paint,synthesize dye materials etc.
Trimellitic anhydride is used as an embossing agent for vinyl flooring and as a curing agent for epoxy resins. It is also used as an intermediate for the synthesis of surface coatings chemicals, adhesives, polymers, dyes printing inks, pharmaceuticals .
分子式: C9H4O5 Molecular formula:C9H4O5
分子量: 192.12 Molecular weight:192.12
外 观: 白色片状或粉末
Appearance: white to off-white flakes
1 酐含量Anhydride content ≥ 97.5%
2 熔点Melting point 165 ± 2℃
3 酸值Acid value ≥872mg(KOH)/g
4 色号（铂钴比色计）Color,Hazen ≤150#(molten state)
5 总含量Total Acid & Anhydride ≥99%