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Merck
CN

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
UNSPSC Code:
12352300
NACRES:
NA.23
PubChem Substance ID:
EC Number:
200-848-3
Beilstein/REAXYS Number:
3909011
MDL number:
Technical Service
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grade

technical

Quality Level

assay

≥75% (gas-volumetric)

form

pieces

quality

granulated

reaction suitability

core: calcium

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

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).


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signalword

Danger

target_organs

Respiratory system

Storage Class

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

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3 - Water-react. 1

Regulatory Information

监管及禁止进口产品

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Mirian Elizabeth Casco et al.
Nanoscale, 11(11), 4712-4718 (2019-03-07)
We report the one-pot mechanochemical synthesis of N-doped porous carbons at room temperature using a planetary ball mill. The fast reaction (5 minutes) between calcium carbide and cyanuric chloride proceeds in absence of any solvent and displays a facile bottom-up
Yingjie Li et al.
Journal of environmental sciences (China), 68, 169-176 (2018-06-18)
For the first time, a series of alkynyl carbon materials (ACMs) were prepared via the mechanochemical reaction of CaC2 with six polyhalogenated precursors, namely CCl4, C2Cl6, C2Cl4, C6Cl6, C6Br6, and C14H4Br10 (ACM-1, ACM-2, ACM-3, ACM-4, ACM-5, and ACM-6, respectively) and
H Kjuus et al.
British journal of industrial medicine, 43(4), 237-242 (1986-04-01)
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



Global Trade Item Number

SKUGTIN
21039-1KG-F04061838771254
21039-100G-F04061838771247