21039
Calcium carbide
granulated, technical, ≥75% (gas-volumetric)
Synonym(s):
Calcium acetylide, Calcium dicarbide
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About This Item
Linear Formula:
CaC2
CAS Number:
Molecular Weight:
64.10
Beilstein:
3909011
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.23
Recommended Products
grade
technical
Quality Level
Assay
≥75% (gas-volumetric)
form
pieces
quality
granulated
particle size
0.1-1 mm
density
2.22 g/mL at 25 °C (lit.)
SMILES string
[Ca++].[C-]#[C-]
InChI
1S/C2.Ca/c1-2;/q-2;+2
InChI key
UIXRSLJINYRGFQ-UHFFFAOYSA-N
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General description
Calcium carbide (CaC2), also referred to as calcium acetylide, is an ionic compound. Technical grade CaC2 is a grey solid with a granular form. The material is reactive with water and forms acetylene gas and calcium hydroxide. Our technical grade material consists of ≥75% CaC2 with the remainder of the composition being calcium oxide, phosphides, sulfides, and nitrides. CaC2 is extensively utilized in the production of acetylene and calcium cyanamide. Additionally, it has been explored in producing phase change materials and as a shape-stabilized phase change material for the efficient utilization of solar energy. Furthermore, it is being investigated as an electrode material for rechargeable calcium batteries.
Application
- NUCLEOPHILIC ADDITION OF PHOSPHINOXIDES AND ALCOHOLS TO ACETYLENE GENERATED in situ FROM CALCIUM CARBIDE: This study discusses the reactivity of acetylene generated from calcium carbide for various organic synthesis applications (Aleksandrovna, 2024).
- Construction of 3-Methyl-2-Substituted Benzofurans and 3-Methyl-2-Substituted Benzothiophenes Using Solid Calcium Carbide as a Substitute for Gaseous …: Describes a synthetic method using solid calcium carbide in organic synthesis, highlighting its practicality and environmental benefits (Wang et al., 2024).
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3 - Water-react 1
Target Organs
Respiratory system
Storage Class Code
4.3 - Hazardous materials which set free flammable gases upon contact with water
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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The overall mortality and the incidence of cancer have been studied among male employees at a plant producing calcium carbide. The cohort was defined as all men employed at the plant for at least 18 months in the period 1953
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