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Calcium Stearate Properties

Calcium Stearate

Calcium Stearate Molecular Structure-Molecule Struture
Molecule Structure Image



Calcium stearate is carboxylate of calcium that is found in some lubricants and surfactants. It is a white calcium salt of stearic acid. Chemically it is related to the components of hand soap and is considered the most important calcium soap. Calcium stearate is as a flow agent in powders including some foods, a surface conditioner in hard candies such as Sprees, a waterproofing agent for fabrics, a lubricant in pencils and crayons.The concrete industry uses calcium stearate for efflorescence control of cementious products used in the production of concrete masonry units i.e. paver and block, as well as waterproofing. In the paper production, calcium stearate is used as a lubricant to provide good gloss, preventing dusting and fold cracking in paper and paperboard making. In plastics, it can act as an acid scavenger, a lubricant and a release agent. It may be used in plastic colorant concentrates to improve pigment wetting. Applications in the personal care and pharmaceutical industry include tablet mold release, anti-tack agent, and gelling agent.

Chemical Properties

Appearance Yellowish-white powder
CAS Number 1592-23-0
Density 1.08 g/cm3
EINECS Number 216-472-8
HS Code 29157030
IUPAC Name Calcium Octadecanoate
InChI 1S/2C18H36O2.Ca/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2
Melting Point 155 °C
Molar Mass 607.02 g/mol
Molecular Formula C36H70CaO4
NFPA 704 H-2,F-1,R-0,C-NA
RTECS Number WI3000000
Synonyms Stearic Acid Calcium Salt;Octadecanoic Acid Calcium Salt;Calcium Octadecanoate;Calcium Stearate;Aquacal;Calciumdistearate;Calstar;Dibasiccalciumstearate