Aluminum Stearate Supplier and Manufacturer

Aluminum Stearate


Description

Aluminum Stearate is an Aluminum Salt that functions as a defoamer in water based drilling fluids by reducing surface tension. It is not water soluble, so it must be mixed with diesel, glycol, or alcohol prior to adding it to the drilling fluid. Effectiveness decreases, however, when salinity of the drilling fluid increases. Drilling fluids containing a high concentration of polymers may require an alcohol‐based or silicon based defoamer to be adequately defoamed. Aluminum Stearate is not an anti foaming agent, but reduces the ability of foam to persist once it is formed.

USES/ ADVANTAGESS

Aluminum Stearate is used to control foaming in water – based fluids.
Effective in very low concentrations.
May be used in all water based fluids.
Minimal effect on drilling fluid properties.
Molecular Formula :
Aluminum Stearate  :      C18H36O2⅓Al


PHYSICAL PROPERTIES

Appearance                  White Powder
Molecular Weight           876.0
Specific Gravity             1.070
Particle Size                 200 Mesh

Physical State :  
The material shall be in the form of powder, free from visible impurities.

Moisture Content at 105 ± 2°C percent by mass :........................................................ 1.5 (Maximum)

Inorganic Acidity And Alkalinity :  

The material shall neither change the colour of methyl orange indicator nor bromo-cresol purple indicator.
Acidity of Acetone Extractable, as CH3 —(CH2 )16 —COOH, percent by mass:..........10.0 (Maximum)

Aluminium Stearate Content as Al2O3, Percent by mass:............................................10.0 (Maximum)

Dispersion in Benzene :  
Shall form a clear gel, when weighed amount of material is heated, with four times its own weight of benzene, and allowed to stand overnight.

Iron Content as Fe 2 03 , percent by mass :..............................................................0.10 (Maximum)

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