Red phosphorus (CAS No.: 7723-14-0, Molecular Formula: P) is a high-purity industrial chemical with a stated purity of 99% and tested red phosphorus purity of 98.6%, classified as Hazard Class 4.1 with a UN number of 1338 and HS code 2804709010. Characterized as a dark red powder with partial metallic luster, this qualified industrial material is a versatile raw material serving a wide array of sectors including fireworks, electronics semiconductors, metallurgy and pesticide synthesis. Supplied by E&M INDUSTRIAL LIMITED, it adheres to strict quality standards, with detailed performance metrics documented in a formal Certificate of Analysis, ensuring consistent and reliable performance for global industrial applications.
The quality specifications of this industrial-grade red phosphorus meet and exceed core industry requirements. Test results confirm
red phosphorus purity of 98.6% (surpassing the ≥98.5% standard), while yellow phosphorus content is less than 0.005% (well below the ≤0.005% limit). Additional quality parameters include free acid at 0.42% (≤0.50% standard), moisture at 0.16% (≤0.25% standard), and 100% passage through a 100-mesh sieve for super fineness, customizable to customer requirements. All tested indices verify the product’s qualification, making it a dependable choice for diverse manufacturing processes.
Red phosphorus’s versatility is evident in its extensive range of industrial applications across multiple high-demand sectors. In match and firework manufacturing, it is a core component: safety match heads rely on red phosphorus converting to white phosphorus upon friction to ignite, a key reaction for pyrotechnic and daily ignition products. As a pesticide synthesis raw material, it is used to produce organophosphorus pesticides such as dichlorvos and methamidophos, supporting agricultural pest control production.
It acts as an effective flame retardant when added to polymer materials, significantly enhancing the fire resistance of plastic and composite products for various industrial and consumer applications. In the metallurgical industry, red phosphorus is critical for manufacturing phosphor bronze—boosting the metal’s hardness—and for the deacidification of light metals, optimizing metal processing and product performance. For the electronic semiconductor industry, it serves as a semiconductor diffusion source (e.g., phosphorus paper), a key material for semiconductor wafer fabrication and component production. Additionally, it functions as a chemical intermediate for producing phosphoric acid, phosphorus trichloride and phosphorus pentasulfide, forming a foundational material for other chemical manufacturing processes.
For industrial logistics and bulk supply, red phosphorus is packaged in iron drums with a net weight of 50kgs per drum, designed for safe handling and transportation of this Hazard Class 4.1 chemical. Loading efficiency is optimized for 20ft containers: a maximum of 18 tons can be loaded with pallets, while 20 tons can be loaded without pallets, catering to different bulk order volumes and shipping requirements for global industrial customers.
E&M INDUSTRIAL LIMITED is a reliable supplier of high-quality red phosphorus, meeting the rigorous standards of industries including firework and match production, electronic semiconductors, metallurgy and pesticide synthesis worldwide.
