Refined naphthalene is a high-purity naphthalene (C₁₀H₈) product, typically obtained by further purifying industrial naphthalene, with a purity of over 99%. Its CAS number is 91-20-3, and its molecular formula is C₁₀H₈. It appears as white or slightly reddish plate-like crystals and has a mild aroma

Refined naphthalene is a high-purity naphthalene (C₁₀H₈) product, typically obtained by further purifying industrial naphthalene, with a purity of over 99%. Its CAS number is 91-20-3, and its molecular formula is C₁₀H₈. It appears as white or slightly reddish plate-like crystals and has a mild aroma

According to the national standard "GB/T 6699-1998", refined naphthalene is classified into premium grade, first grade, and qualified grade. The main indicators are as follows:| Item | Premium Grade | First Grade | Qualified Grade | |--------------|--------------|--------------|-------------

Dolomite: A treasure mineral for many applicationsIn the mineral world, dolomite has become an indispensable and important raw material for many industries due to its unique chemical composition and superior properties. The chemical composition of dolomite is CaMg(CO₃)₂, which is a carbonate mineral