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Sigma-Aldrich

Calcium carbonate

6700002749, Technipur®

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Synonym(s):
Calcite, Limestone
Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
Beilstein/REAXYS Number:
8008338
MDL number:

Quality Level

pH

9.5-10.5 (20 °C, 100 g/L in H2O)

mp

825 °C

density

2.93 g/mL at 25 °C (lit.)

SMILES string

[Ca++].[O-]C([O-])=O

InChI

1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2

InChI key

VTYYLEPIZMXCLO-UHFFFAOYSA-L

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General description

Calcium carbonate (also called whiting) is the most widely used additive in plastic and elastomeric applications due to its wide availability, easy processing to specific particle sizes and its compatibility with a wide range of polymer types.

Application

Calcium carbonate can be used as an inorganic filler in printed electronic applications and the plastics industry to improve the mechanical stability, flexibility, rheological and optical properties of the synthesized composite materials. In polymer formulations, CaCO3 may be used to formulate several thermoplastics (PVC pipes and floor tiles) and thermosets such as polyesters.

It can also be used as a versatile additive in a wide range of applications such as adhesives, sealants, decorating filler, ceramic glaze, plastics, rubber, coatings, inks, etc.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

13 - Non Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable


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Polymer Matrix Composites: Fundamentals
Beaumont PWR, et al.
Comprehensive Composite Materials II (2018)
Filler-nanocellulose substrate for printed electronics: experiments and model approach to structure and conductivity
Penttila, A, et al.
Cellulose, 20(3), 1413-1424 (2013)
Rheological and optical properties of polypropylene filled with synthetic silicates and calcium carbonate
Upadhyay RD and Kale DD
Journal of Polymer Research, 8(3), 175-181 (2001)
Effect of calcium carbonate particle size and content on polyamide 6 processing and properties
Bonse BC and Molina LM
AIP Conference Proceedings, 1779(1), 030019-030019 (2016)
The application of basalt in the manufacturing of ceramic glazes
Prstic, A, et al.
Journal of Mining and Metallurgy A: Mining, 43(1), 53-60 (2007)

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