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14308 Calcium carbide

CAS Number
75-20-7
Synonyms
Calcium acetylide

Stock No. Size Price ($) Quantity Availability
14308-A1 1kg 49.60
14308-D9 *5x1kg 215.00
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Calcium carbide

MDL
MFCD00010905
EINECS
200-848-3

Chemical Properties

Formula
C2Ca
Formula Weight
64.09
Form
9-40mm Lump
Melting point
2300°
Density
2.22
Storage & Sensitivity
Moisture Sensitive. Ambient temperatures.

Applications

Calcium carbide is used as a desulfurizer, dehydrant of steel, fuel in steel making, powerful deoxidizer and as a source of acetylene gas. It is used as a starting material for the preparation of calcium cyanamide, ethylene, chloroprene rubber, acetic acid, dicyandiamide and cyanide acetate. It is used in carbide lamps, toy cannons such as the big-bang cannon and bamboo cannon. It is associated with calcium phosphide and used in floating, self-igniting naval signal flares. Further, it is involved in the reduction of copper sulfide to metallic copper.

Notes

Moisture sensitive. Incompatible with strong oxidizing agents, alcohols, hydrogen chloride, magnesium and water.

Literature References

Hosseini, A.; Seidel, D.; Miska, A.; Schreiner, P. R. Fluoride-Assisted Activation of Calcium Carbide: A Simple Method for the Ethynylation of Aldehydes and Ketones. Org. Lett. 2015, 17 (11), 2808-2811.

Kaewchangwat, N.; Sukato, R.; Vchirawongkwin, V.; Vilaivan, T.; Sukwattanasinitt, M.; Wacharasindhu, S. Direct synthesis of aryl substituted pyrroles from calcium carbide: an underestimated chemical feedstock. Green Chem. 2015, 17 (1), 460-465.

GHS Hazard and Precautionary Statements

Hazard Statements: H260-H315-H318-H335

In contact with water releases flammable gases which may ignite spontaneously. Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.

Precautionary Statements: P223-P231+P232-P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P310-P312-P332+P313-P335+P334-P362-P370-P378aa-P378ac-P501c

Keep away from any possible contact with water, because of violent reaction and possible flash fire. Handle under inert gas. Protect from moisture. Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages. Take off contaminated clothing and wash before reuse. In case of fire: Dry chemical Dry sand Dispose of contents/ container to an approved waste disposal plant

Other References

Merck
14,1656
Beilstein
3909011
Hazard Class
4.3
Packing Group
I
Harmonized Tariff Code
2849.10
TSCA
Yes

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