Calcium Carbide

CAS Number:


Other Trading Names:

  • Calcium Acetylide
  • Calcium Percarbide
  • Calcium Dicarbide
  • CaC2

Types of Packaging

  • Iron drums with 50kg weight capacity per drum
  • Iron drums with 100kg weight capacity per drum

HS Code:


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Calcium Carbide

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Item  Index
Gas Yield 20°C 101.3KpaL/Kg≥ Size Gas Yield Size % Ash %
Top A Grade Accept Grade ≥90 ≤1
2-4mm 295 240 240
4-7mm 295 260 260
7-15mm 295 270 270
15-25mm 295 285 285
25-50mm 300 295 295
50-80mm 300 295 295
80-200mm 300 295 295
pH % (V/V) ≤ 0.032
H2S % (V/V) ≤ 0.015

Calcium Carbide is an inorganic compound having the chemical formula CaC2. It is also commonly known as Calcium Acetylide.

Chemical Appearance

Calcium Carbide in its pure form is colourless but its technical grade pieces are grey or brown in colour. They consist of approximately 80-85% Calcium Carbide, the rest is calcium oxide, calcium phosphide, calcium sulfide, and calcium nitride etc. Calcium Carbide emits an unpleasant garlic like odour in the presence of moisture. It reacts violently with water.

Chemical Applications and Strengths

Calcium Carbide is an extremely efficient chemical compound and therefore, has many industrial applications. Its main applications and strengths are:

  • Primarily, Calcium Carbide is used for the production of acetylene and calcium hydroxide. The reaction of Calcium Carbide with water results in the formation of these two.
  • Acetylene made from Calcium Carbide is used for the production of polyvinyl chloride.
  • Calcium Carbide is also used for the production of calcium cyanamide. For this, Calcium Carbide is reacted with nitrogen at high temperature.
  • Calcium Carbide has various applications in steelmaking.
  • It is used for the desulfurisation of iron.
  • It is used as a fuel to increase the scrap ratio to liquid iron.
  • At the ladle treatment facilities, it is used as a powerful deoxidiser.
  • Calcium Carbide is used in carbide lamps too.
  • It is used along with calcium phosphide in floating and self igniting naval signal flares.
  • It is used to determine the amount of moisture in soil.
  • It is used as a mole repellant.

Storage: Calcium Carbide is extremely hazardous. Too many ashes will cause an explosion, so it should be strictly controlled.

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Calcium Carbide