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Product Name

Lead Free Metallic Stearates

Metallic stearates are metal soaps of an 18-carbon chain fatty acid, known as stearic acid, and various alkali metals like calcium, magnesium, and zinc. They are produced by replacing the carboxylic hydrogen of stearic acid with a metal cation from direct metal, metal oxide, metal hydroxide, metal sulphates, and metal chlorides. The most widely used metallic stearates are Calcium, Magnesium, and Zinc. The long hydrocarbon chain of stearic acid makes the stearate highly water-resistant, good for lubrication, and has a relatively higher melting point as compared to other metallic soaps.

These properties allow its use in a wide range of applications, from simple plastic toys to complex structures in several industries such as polymer & rubber, pharmaceuticals & cosmetics, building & construction, and paints & coatings industry. The structure of metallic stearates is similar to that of a carboxylate salt. It has a head of an alkali metal cation and a tail of stearic acid. The completely saturated hydrocarbon chain of 18-carbons is insoluble in water and thus imparts the hydrophobic nature to metallic stearates.
Zinc Stearates(ZS) - Fine White Powder
Parameters Result
Bulk Density 0.2-0.3 gm/cc
Residue on B.S. 240 mesh 1% Max
Melting Point 120°C ± 5°C
Moisture 1% Max
Ash contents 13.0 - 14.0 %
Free Fatty Acids 0.5% Max
Specific Gravity 1.15 ± 0.1
Barium Stearates(Barium Carbonate: BaCO3)
SR.NO PARAMETERS(%/Mass) RESULT SPECIFICATION
1 RESIDUE @45 µ 0.72 0.70 - 0.90 %
2 DENSITY 1772 1770 - 1775 G/L
3 GLOSSINESS GLOSSY GLOSSY
4 COLOUR MATCH 1.0 E<=1.0
5 COLOUR SHADE MATCH VISIBILY MUST MATCH
6 FUSION LENGTH 7.8 Cm 7.0 Cm to 9.0 Cm
7 FUSION DIFFERENCE 0.4 0.5 MM MAX
8 % FUSION 97 100 ± 5
9 TEXTURE SMOOTH SMOOTH
10 REFIREABILITY NEGATIVE NEGATIVE
11 CRAZING NEGATIVE NEGATIVE
12 ABRASION RESISTANCE NEGATIVE NEGATIVE
Calcium Stearates(CS) - Fine White Powder
Parameters Result
Specific Gravity 1.0 - 1.15
Melting Point 130°C - 145°C
Fitness(through B.S. 240 mesh) 99.0% Min
Moisture 2% Max
Free Fatty Acids (F.F.A) 0.3% Max
Bulk Gravity 0.25 - 0.3 gm/cc