... NO :75-20-7, UN No.:1402, Size: 4-120MM, Gas Yield: 295L/Kg Min, Grey&Black Solid Calcium CarbideMolecular Formula ... (V/V) 0.1% MaxAppearance: Grey&Black SolidApplication: Producing Acetylene Gas, Organic Synthesis, Metal Bonding And CuttingPackaging Details: In 50kgs & 100kgs ...