High quality gas yield calcium carbide stone china supplier

                                                      High quality gas yield calcium carbide  stone  china supplier Applicantion:   This product is lumpy substance, its surface is a little deep gray, has slight nasty smell. It can produce acetylene gas when met water, it can burn when meets fire. The acetylene gas mix with air will form explosive gas (explosive range of acetylene gas in the air is 2.3% - 81%).      

Technical specifications and features
1. Name	Calcium Carbide
2. Molecular formula	CaC2
3. UN	1402
4. Class	4.3
5. HS code	28491000
6. Gas yield20 101.3 Kpa	≥295L/KG
7. PH3(V/V)	≤0.08%
8. H2S(V/V)	≤0.1%
9.Molecular weight	64.10 (according to 1995 international relative atomic mass)
10. SIZE	4-7,7-15,15-25,25-50,50-80,80-120MM
11. Packing	50kg or 100kg iron drum

    Cautions during transportion: The packing must be kept in good condition and the goods should be stored in a dry,cool and ventilated place.It should be separate from the cargo can burn and acid.It should avoid meeting water and moisture.It should give off the acetylene in iron drum before storing in warehouse. Rolling drums,heavy putting down and colliding are not allowed to avoid the spark leads to explosion.