Calcium carbide Application: 1)Calcium carbide and water to form the acetylene 2)Heating calcium carbide powder and nitro TIANJIN XINZE FINE CHEMICAL CO.,LTDCalcium Carbide PlantHigh Quality,Reasonable price!Such a reliable supplier! ComodityCalcium CarbideFormulaCaC2CAS NO75-20-7Standard:GB10666-2004Appearance: Grey, yellowish-brown ,black or brown solid blockSize:2-4mm,4-7mm,7-15mm,15-25mm,25- ...