Welcome to Kolkata Chemical, India’s leading Calcium Carbonate supplier, manufacturer, and distributor, rooted in the heart of Kolkata. Pioneers in the chemical industry, we pride ourselves on providing world-class calcium carbonate products, suited to meet diverse needs. CAS No: 471-34-1 Formula: CaCO3 Product Description: Calcium Carbonate, commonly referred to as CaCO3, is a ubiquitous […]