Calcium Carbide
LIWEI CHEMICAL CO. LTD
|
ITEM |
SPECIFICATION |
|
Gas Yield Rate |
≥295l/kg |
|
Lump Size |
50-80mm, 25-50mm, 80-120mm, 15-25mm |
|
Package/Quantity |
100KG， 50KG Drums |
|
H2S Content |
< 0.1% |
|
PH3 Content |
< 0.06% |
| Packing | in 100KG, 50KG Drums |
|---|---|
| Storage | 20°C 2 years |
| Shipping | Room temperature 5-30℃ in China; may vary elsewhere |
| Liwei PVA is one of the top 10 PVA factories and the top 100 strongest enterprises in anhui province.In 2010,Liwei PVA is evaluated as advanced and high technical company. We mainly deals in polyvinyl alcohol,PVA,PVA fiber and raw materials for producing PVA like vinyl acetate,calcium carbide. |
| For samples, pricing, or more information, please call us at 0086-25-52397803 or mail to info@china-pva.net or fill out the following form. We will respond to you as soon as possible. |
Tel: 0086-25-52397803
E-mail: info@china-pva.net
|
Common Names |
Calcium Carbide |
||
|---|---|---|---|
|
Structure |
C2Ca |
||
|
CAS No. |
75-20-7 |
Boiling Point(℃) |
2300 ℃ |
|
Molecular Weight |
64.1 |
Melting Point(℃) |
447 ℃ |
|
Appearance |
Gray crystals or black clumps |
Vapor Specific Gravity |
No data available |
|
HS Code |
2849100000 |
Flash Point(℃) |
No data available |
|
Solubility |
Hydrolyse |
Autoignition Temperature(℃) |
390 °C |
| Safety Phrases | Danger | ||
|---|---|---|---|
| RIDADR | |||
| WGK Germany | |||
| Packaging Group | I | ||
| Hazard Class | 4.3 | ||
| SYMPTOMS | PREVENTION | FIRST AID | |
| Inhalation | May cause respiratory irritation | Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray | Remove victim to fresh air and keep at rest in a positioncomfortable for breathing. Call a POISON CENTER or doctor/ physician if you feel unwell. |
| Skin | Causes skin irritation | Wear protective gloves/ eye protection/ face protection | Wash with plenty of soap and water |
| Eyes | Serious eye damage | Wear protective gloves/ eye protection/ face protection | Rinse cautiously with water for sever |
| Ingestion | Toxic to aquatic life | Wear protective gloves/ eye protection/ face protection | Get medical advice/ attention |
| Drying of carbon-based raw materials in order to obtain dried carbon-based raw materials; The dried carbon-based raw materials and calcium-based raw materials were crushed respectively to obtain carbon-based particles and calcium-based particles. The carbon-based particles and calcium-based particles were mixed to obtain the mixed materials. The mixed materials are pyrolyzed to obtain high quality tar, high calorific value gas and pyrolytic solid products, which contain quicklime and one of the selected coke, semi-coke and carbon black; And the pyrolytic solid products are input into the arc furnace at a temperature of not less than 450 degrees Celsius for smelting treatment in the arc furnace, and calcium carbide is obtained. This can further improve heat utilization and production efficiency, reduce production costs, reduce energy consumption and pollution |
Calcium carbide is a chemical compound with the formula CaC2. It is composed of calcium and carbon atoms and is primarily used in industrial applications. Here are some key points about calcium carbide:
1. Production: Calcium carbide is produced by heating lime (calcium oxide, CaO) and carbon in an electric arc furnace at temperatures above 2,200 degrees Celsius (4,000 degrees Fahrenheit). The reaction that takes place is as follows:
CaO + 3C → CaC2 + CO
2. Physical properties: Calcium carbide is a grayish-black solid with a crystalline structure. It has a density of around 2.22 grams per cubic centimeter. The compound is insoluble in water but reacts vigorously with it to produce acetylene gas.
3. Acetylene production: One of the primary uses of calcium carbide is the production of acetylene gas (C2H2). When calcium carbide reacts with water, it undergoes hydrolysis to produce acetylene and calcium hydroxide:
CaC2 + 2H2O → C2H2 + Ca(OH)2
Acetylene gas is highly flammable and is used in various industrial applications, including welding and cutting metals, as well as in the production of chemicals like vinyl chloride and acetaldehyde.
4. Other applications: Besides acetylene production, calcium carbide has some other uses as well. It can be used as a desulfurizing agent in steelmaking, as a reducing agent in the production of metals like titanium, and as a source of carbon in the production of calcium cyanamide, a nitrogen fertilizer.
5. Safety considerations: Calcium carbide reacts violently with water, releasing flammable acetylene gas. Therefore, it should be handled with care and stored in a dry environment away from moisture. It is important to follow proper safety protocols and guidelines when working with calcium carbide.