Shaoxing Huawei Chemical Co., Ltd. is one of the leading manufacturers and suppliers of tetrachlorophthalic anhydride for pigment synthesis in China. If you're going to buy bulk tetrachlorophthalic anhydride for pigment synthesis made in China, welcome to get pricelist and quotation from our factory. All customized products are with high quality and competitive price.

Manufactured in strict accordance with global fine chemical industry specifications for high-performance organic pigment synthesis, as well as EU REACH and RoHS compliance requirements for pigment raw materials, this product takes tetrachlorophthalic anhydride as its primary active constituent. It features tightly controlled high purity, ultra-low trace impurity content (especially heavy metals and residual acid impurities that may interfere with pigment color development), and consistent batch-to-batch physical and chemical properties. It is free of pungent odors, has strong resistance to moisture absorption and deliquescence even in high-humidity production and storage environments, and can effectively guarantee the color fastness, brightness, hue consistency and storage stability of synthesized pigments.Its core application is as a key halophthalic anhydride intermediate in the production of high-end organic pigments, including azo pigments, phthalocyanine pigments, quinacridone pigments, dioxazine pigments and other high-performance varieties. When applied in the pigment synthesis condensation and cyclization processes, Tetrachlorophthalic anhydride for pigment synthesis can effectively optimize the molecular conjugated structure of pigment products, enhance color saturation, improve light fastness and weather resistance of final products, and fully meet the high standards of high-end pigment manufacturing for raw material consistency. It is optimized for large-scale continuous pigment production lines, and we can also provide customized purity grades, particle size distribution control and impurity limit solutions based on customers' specific production processes and product performance requirements.

To meet the stringent quality requirements of pigment synthesis and the strict incoming material standards of well-known international enterprises, we have established a closed-loop full-lifecycle quality management system covering raw material incoming inspection, production process control, finished product testing and after-sales traceability. All incoming raw materials undergo strict incoming quality control (IQC) testing, and only materials that meet pigment-grade fine chemical specifications are approved for production. The entire production process is subject to in-process quality control (IPQC) monitoring at key reaction, crystallization, drying and crushing nodes, to eliminate batch-to-batch variation and prevent cross-contamination and impurity introduction.Each batch of Tetrachlorophthalic anhydride for pigment synthesis undergoes comprehensive and rigorous multi-index testing before delivery, focusing on core indicators including purity, impurity profile, compatibility with common pigment synthesis systems, melting point, moisture content and color development performance in simulated synthesis tests. In addition, we provide a complete official Certificate of Analysis (CoA) for every single batch, with full traceability of production and testing records. This zero-compromise quality control system has laid a solid and reliable foundation for our long-term stable cooperative partnerships with leading international pigment and fine chemical manufacturers worldwide