| CAS No.: | 75-20-7 |
|---|---|
| Formula: | C2ca |
| EINECS: | 200-848-3 |
| Classification: | Non-Metal |
| Grade Standard: | Industrial Grade |
| Appearance: | Solid |
| Samples: |
|---|
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Audited Supplier Calcium carbide is mainly used as a raw material for the production of acetylene. Acetylene is an important basic organic chemical raw material. But with the rise of petrochemical industry, acetylene used in organic chemical industry has gradually been provided by petrochemical industry. Calcium carbide is used in acetylene generators for metal cutting and welding. Use carbide lamps as light sources in areas without electricity. Calcium cyanamide is produced by heating calcium carbide in ammonia gas in industry, which is a nitrogen fertilizer, plant defoliant, and herbicide Chemicalbook. With the development of acetylene chemical industry, China's calcium carbide production increased from 3000 tons in 1949 to 1.808 million tons in 1983, ranking first in the world. But the production technology is still relatively backward, most of which are small open furnaces with high energy consumption and serious pollution. In order to reduce energy consumption, modern calcium carbide production often uses enclosed large-scale electric furnaces to reduce heat dissipation losses and facilitate the recycling and utilization of carbon monoxide.
| ITEM | INDEX | |||||
| Gas Yield | Size | Gas Yield | Size percentage | Ash,% | ||
| 20°C 101.3 Kpa | Top | A Grade | Accept Grade | |||
| L/kg ≥ | 80-120mm | 300 | 295 | 280 | ≥90 | ≤1 |
| 50-80mm | 300 | 295 | 280 | ≥90 | ≤1 | |
| 25-50mm | 300 | 295 | 280 | ≥90 | ≤1 | |
| 15-25mm | 300 | 285 | 260 | ≥90 | ≤1 | |
| 7-15mm | 290 | 270 | 250 | ≥90 | ≤1 | |
| 4-7mm | 280 | 260 | 240 | ≥90 | ≤1 | |
| 2-4mm | 260 | 240 | 220 | ≥90 | ≤1 | |
| PH3 %(V/V) ≤ | 0.08 | |||||
| H2S %(V/V) ≤ | 0.1 | |||||
| Quality Standard | GB10665-2004 | |||||
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