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Chemical Name: Aluminum Distearate
CAS No.: 300-92-5
Molecular Formula: C36H71AlO5
Molecular Weight: 610.93
DESCRIPTION
Aluminum Distearate is a powdered salt of aluminum hydroxide and stearic acid. As a non- water-soluble product, it is used as defoamer in all types of water-base drilling fluids by mixing with diesel, glycol into the drilling fluid.
TYPICAL PROPERTIES
| Items |
Specifications |
| Appearance |
white powder, free flowing |
| Aluminum Content % |
4.2-5.2 |
| Melting Point °C |
160-170 |
| Free Fatty Acid % |
≤5.0 |
| Content Of Water % |
≤1.5 |
| Particle Size Pass 200mesh % |
≥98 |
Application
Aluminum DiStearate is recommended for use in all water-base drilling fluids to prevent foaming during mixing or circulating operations.
---An effective defoamer in all water-base drilling fluids.
---Effective at low concentrations and easy to mix.
---Prevents re-foaming.
---Minimal effect on drilling fluid rheology.
Treatment
Normally 5 to 10 lb (2.3 to 4.5 kg) of Aluminum distearate is mixed with 5 gal (18.9 m3) diesel or mineral oil. The level of treatment of mixture is 1.0 to 2.0 gal/bbl (23.8 to 47.6 liters/m3). Mixture can be added directly to active system.
Packaging
Aluminum Distearate is supplied in 25 lb (11.34 kg) multiwall paper sack. 18.16 mt per 40’ container shrinked on pallets. | 
ALUMINUM DISTEARATE
