Specifications

Place of origin: Inner Mongolia
Grade: First grade
Packing: 100kgs per new steel drum with open head
1*20'FCL: 22.5 drums

Product name: calcium carbide

Place of origin: Inner Mongolia

Grade: First grade

Gas evolution (20°C, 101.3KPa)/(L/kg)≥280

Packing: 100kgs per new steel drum with fully open head

1*20'FCL: 22.5 drums

 

Calcium carbide, its molecular formula is CaC2. Its appearance is gray, claybank, black or brown block solid. It is basic material of organic synthesis and chemical industry. Many organic compounds can be synthesized by using the material of calcium carbide and they are widely used in industry, agriculture, medical etc.

 

Main application

(1)acetylene which is the reaction product of calcium carbide can be synthesized many organic compounds like synthetic rubber, synthetic resin, acetone, ketene, carbon black, etc; meantime, acetylene – oxygen flame can be widely used for welding and cutting of metal.

(2)when heating powdery calcium carbide and nitrogen gas, it produces calcium cyanamide which reacts with salt to form black cyanid. It is applied to gold mining and non-ferrous metal industry.

(3)calcium carbide itself can be used as desulfurizer in steel industry.

 

The purity of calcium carbide used for industry is about 70%-80%, with impurity CaO about 24%, others carbon, silicon, iron, calcium phosphate and calcium sulfide etc about 6%. Its new section is shiny and as the different content of calcium carbide, it shows grey, brown, purple or black solid. If there is high content of calcium carbide, it shows purple. The density of industry product is 2.22g/cm3(18°C), melting point 2300°C, which can conduct electricity. The purity is higher, the electrical conductivity is easier.

 

Calcium carbide products – National Standards GB10665-89

(Conditions: 20°C, 101.3KPa)

Granularity:	H2S content	PH3 content	Gas evolution	Grade
				Superior quality	First grade	Qualified product
80-200mm	≤0.1 v/v	≤0.06 v/v	305 L/kg	√
	≤0.1 v/v	≤0.08 v/v	285L/kg		√
	≤0.15 v/v	≤0.08 v/v	255 L/kg			√
50-80mm	≤0.1 v/v	≤0.06 v/v	315 L/kg	√
	≤0.1 v/v	≤0.08 v/v	285L/kg		√
	≤0.15 v/v	≤0.08 v/v	255 L/kg			√
5-60mm	≤0.1 v/v	≤0.06 v/v	300 L/kg	√
	≤0.1 v/v	≤0.08 v/v	280 L/kg		√
	≤0.15 v/v	≤0.08 v/v	250 L/kg			√
5-50mm	≤0.1 v/v	≤0.06 v/v	300 L/kg	√
	≤0.1 v/v	≤0.08 v/v	280 L/kg		√
	≤0.15 v/v	≤0.08 v/v	255 L/kg			√