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Calcium Carbide CAS 75-20-7

Calcium Carbide is an important basic chemical raw material widely used in various industrial fields. Its common aliases include Acetylenogen, Calcium Acetylide, and Carbide of Calcium. The CAS number is 75-20-7. This product has passed REACH registration, and MSDS download is available for customers to obtain detailed safety information.

Product Properties and Physical Characteristics

Calcium Carbide is an inorganic compound with distinct physical properties. In its pure form, it is a nearly colorless and transparent crystal, while industrial-grade Calcium Carbide appears as gray, yellowish-brown, or black lumps with a garlic-like odor due to impurities such as calcium phosphide and calcium arsenide. It has a density of 2.22 g/cm³ and a melting point of 2300℃, showing good electrical conductivity that increases with the improvement of purity. Calcium Carbide is insoluble in all known solvents and can absorb moisture in the air, which requires strict moisture-proof measures during storage and transportation.

Common Product Specifications

Product Applications

Calcium Carbide has a wide range of applications in chemical, metallurgical, agricultural and other industries. In the chemical industry, it is the core raw material for producing acetylene, which is further used to manufacture synthetic rubber, polyvinyl chloride (PVC), acetone, acetaldehyde and other chemical products. In the metallurgical industry, Calcium Carbide is used as an iron water desulfurizer with a desulfurization rate of up to 90%, which can effectively reduce sulfur content in iron water and improve product quality.

In agriculture, Calcium Carbide can release acetylene, which is similar to ethylene in structure and can be used as a fruit ripening agent and plant growth regulator to promote fruit ripening and improve fertilizer utilization. In addition, it is also used in metal cutting and welding, as well as in the production of calcium cyanamide, which is an important intermediate for manufacturing cyanide compounds and thiourea.

FAQ

Q1: What are the storage requirements for Calcium Carbide?

A1: Calcium Carbide must be stored in a cool, dry and well-ventilated warehouse with relative humidity maintained below 75%. It should be sealed in airtight iron barrels to avoid contact with moisture in the air, and should be stored separately from acids, alcohols and flammable substances to prevent dangerous reactions.

Q2: Is Calcium Carbide compliant with EU import regulations?

A2: Yes, Calcium Carbide has completed REACH registration, which fully complies with EU chemical import and use regulations. MSDS download is available to provide detailed safety and compliance information for customs clearance and use.

Q3: What is the key precaution when transporting Calcium Carbide?

A3: The transportation vehicle must be equipped with waterproof and rainproof facilities, and transportation is strictly prohibited on rainy days. During handling, it should be handled with care to avoid collision and vibration, and it is not allowed to be mixed with wet goods or flammable materials to prevent fire and explosion risks caused by contact with water.

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