Calcium carbide is an inorganic substance, the chemical formula is CaC2, the main component of calcium carbide, white crystals, industrial products are gray-black lumps, and the cross section is purple or gray. It reacts violently when encountering water, generating acetylene and releasing heat. Calcium carbide is an important basic chemical raw material, mainly used to produce acetylene gas. Also used in organic synthesis, oxyacetylene welding, etc.
Acetylene produced by the reaction of calcium carbide with water can synthesize many organic compounds such as synthetic rubber, synthetic resin, acetone, ketene, carbon black, etc.; at the same time, acetylene-oxygen flame is widely used in metal welding and cutting.
Store in a cool, dry and well-ventilated warehouse. Keep away from fire and heat sources. The relative humidity is kept below 75%. The packaging must be sealed and protected from moisture. It should be stored separately from acids and alcohols, and avoid mixed storage. The storage area should be equipped with suitable materials to contain the leakage.
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The product name specification price of material origin than yesterday last week than the previous month General line Φ6.5mm Q235 Masteel 4500 0 -50 -120 General line Φ8mm Q235 Masteel 4500 500 -120 High line Φ6.5mm Q235 Masteel 4550 0 - 30 -100 High Line Φ10mm Q235 Masteel 4550 0 -30 -100 High Line Φ6.5-12mm Q335 Jiyuan 4550 0 0 -100 Rebar Φ12mm HRB335 Ma Steel 4700 0 -30 -100 Rebar Φ14-25mm HRB335 Ma Steel ( Hefei) 4550 0 -30 -100 Rebar Φ14-25mm HRB335 Ma Steel (Anshan) 4550 0 -30 -100 Rebar Φ16-25mm HRB335 Yong Steel 4480 0 0 -20 Rebar Φ16-25mm HRB335 Jinan Steel 4530 -30 - 30 -70 Rebar Φ16-25mm HRB335 Rebar 4530 -30 -30 -70 Rebar Φ16-25mm HRB400 Yonggang 4650 -50 -50 -130 Rebar Φ16-25mm HRB400 Jigang 4700 -80 -80 -90 Rebar Φ16-25mm HRB400 Angang 4650 -50 -50 -110 Hot rolled coil 3.0mm*1500*C Q235 Masteel 4950 0 0 50 Hot rolled coil 3.0mm*1500*C Q235 Shagang 4950 0 0 50 Hot rolled coil 3.75mm* 1500*C Q235 Masteel 4750 0 -100 -50 Hot Roll 4.75mm*1500*C Q235 Masteel 4750 0 -100 -50 Hot Roll 3.75mm*1500*C Q235 Jiu Steel 4700 0 -50 -60 Hot Rolled Volume 4.75mm*1500*C Q235 Jiuquan 4700 0 -50 -60 Hot rolled coil 5.5mm*1500*C Q235 Jiugang 4700 0 -50 -60 Hot rolled coil 5.75mm*1500*C Q235 Jiuquan 4700 0 -50 -60 Cold rolled sheet 1.0*1000*2000mm ST12 Wugang 5600 0 0 100 Cold rolled steel plate 1.2*1250*2500mm ST12 Wugang 5550 0 0 100 Cold rolled plate 1.5*1250*2500mm ST12 Wugang 5550 0 0 100 Cold rolled plate 2.0*1250*2500mm ST12 Wugang 5550 0 0 100 Cold rolled coil 1.0*1250 *2500mm ST12 Masteel 5600 0 0 130 Puzhong Plate 8mm Q235 New Steel 5400 0 0 0 Puzhong Plate 10mm Q235 Masteel 5180 0 0 0 Puzhong Plate 12-14mm Q235 Masteel 5080 0 0 0 Puzhong Plate 16-25mm Q235 Ma Steel 5080 0 0 Puzhong Board 16-25mm Q235 Handan Steel 5050 0 0 0 Low Alloy Plate 8mm Q345 New Steel 5480 0 0 0 Low Alloy Plate 10mm Q345 New Steel 5370 0 0 0 Low Alloy Plate 12-14mm Q345 New Steel 5200 0 0 0 Low Alloy Plate 16-20mm Q345 Ma Steel 5200 0 0 0 Plate Roll 3.5mm*1250*C H-Q235 Ma Steel 4750 0 0 0 Plate Roll 4.5mm*1250*C H-Q235 Ma Steel 4750 0 0 0 Diamond plate coil 5.5mm*1250*C H-Q235 Ma steel 4750 0 0 Seamless tube 57*3.5 20# Wuxi 5050 0 0 0 Seamless tube 60*4 20# Wuxi 5050 0 0 0 Seamless Tube 159*6 20# Xinyu 5000 0 0 0 Seamless tube 325*9 20# Steel cladding 5300 0 0 0 I-beam 25# Q235 Wugang 4450 0 0 0 I-beam 36# Q235 Laiwu Steel 4450 0 0 0 Channel 16# Q235 Masteel 4600 0 0 -50 Channel Steel 25# Q235 Wugang 4600 0 0 -50 Angle Steel 50*5mm Q235 Masteel 4750 0 0 0 80*8mm Q235 Masteel 4630 0 0 -20