Weholds and care holding Pvt. Ltd.

Kolkata, West Bengal

Product Description: Copper Slag Copper slag is a by-product generated during the smelting and refining of copper from copper ores in a process called pyrometallurgy. During smelting, impurities in the copper ore separate from the molten metal, forming a molten slag that floats on the surface. This slag is typically quenched in water to produce angular, glassy granules or cooled slowly to form a crystalline material. Composed primarily of iron oxides (FeO, Fe₃O₄, 30–40%), silicon dioxide (SiO₂, 35–40%), alumina (Al₂O₃, up to 10%), and calcium oxide (CaO, up to 10%), with trace amounts of metals like copper, arsenic, lead, and cadmium, copper slag has a density ranging from 3.16 to 3.87 g/cm³, depending on its iron content. Its hardness, typically 6–7 on the Mohs scale, and angular shape make it a versatile material for various industrial applications. Key Characteristics Appearance: Grayish-black, glossy, or reddish-brown granules with a glassy or crystalline texture, depending on cooling method. Particle Size: Varies widely, from fine particles (0.08–2.5 mm) to coarser granules (up to 3 mm or larger), tailored to specific uses. Density: 3.16–3.87 g/cm³, denser than natural aggregates, with low water absorption (especially for air-cooled slag). Composition: Primarily iron silicate (fayalite, pyroxene, magnetite) with minor amounts of copper (0.5–0.87 wt%), sulfides, and trace heavy metals. Environmental Profile: Classified as non-toxic and non-leachable under EU regulations (REACH, CLP), with low free silica content (