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ALUMINIUM STEARATE

ALUMINIUM STEARATE

Aluminium stearate HS Code 29157020

ALUMINIUM STEARAT

Mol Formula                : (C17H35COO)3Al
Mol. Weight                 : 877
CAS Registry No         : 637-12-7
Merck Index No           : 379 (12tn Edition)
Beilstein Reference     : 4-02-00-01206

Aluminium mono stearate is an organic compound which is a salt of stearic acid and aluminium. It has the molecular formula Al(OH)₂C₁₈H₃₅O₂. It is also referred to as dihydroxyaluminium or dihydroxyaluminium. 

APPLICATION

As a waterproofing agent in canvas  coating and cement paints
As an anti-settling agent in paints
As a thickener in greases

When aluminum stearate was first introduced to artists’ paints specifically is not known, but it is directly mentioned in a 1942 painting materials review (Gettens and Stout 1942) and in a paper by Levison in 1949 when he wrote ” . the use of aluminum stearate, customary for several decades, was openly declared,” (Levison 1949 p. 826). He also notes that this soap can be added in quantities up to 2% of the grind without perceptible dilution of pigment color.

Aluminum stearate dissolves in vegetable oils on heating and if a high enough concentration of the soap is used, gelling occurs on cooling. In the usual practice of making paints, the aluminum stearate is ground with the pigment before the bulk of the oil is added.

Aluminum stearate dissolves in vegetable oils on heating and if a high enough concentration of the soap is used, gelling occurs on cooling. In the usual practice of making paints, the aluminum stearate is ground with the pigment before the bulk of the oil is added.

SYNONYMS Stearic acid, aluminum salt; Aluminum tristearate; Monoaluminum stearate; Octa decanoic acid, aluminum salt; Hydroxy aluminium stearat;

TRANSPORTATION

PACKING          20kgs/25/50 Kg  bag
 

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