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Daxad 19
Product #9150
Daxad 19 is the polymerized sodium salt of alkylnapthalene sulphonic acid. The primary application in the oilfield is cement particle dispersion, which allows for pumping cement slurries under turbulent flow conditions at lower pump rates.
This product can also be used to reduce the amount of water required in cement slurries, providing much denser cement with tighter crystal matrices, reducing potential contamination from outside sources which might weaken or destroy the cement.
Application
Daxad 19 is a highly effective dispersing and thinning agent for high solids, aqueous dispersions and slurries. Reduced viscosity and/or lower water requirements are some of the benefits of using Daxad 19 in cement formulations.
By reducing the cement slurry viscosity, much lower pump rates and friction pressures result. Or, with reduced water, higher compressive strength cements can be pumped without affecting the cement viscosity.
Typical addition rates vary from 0.2 to 0.5% by weight of cement, but can run as high as 1.5-2% for high density (or whipstock type) slurries.
Mixing & Handling
Daxad 19 can be dry blended or dispersed in water. Care should be taken to avoid breathing dust.
Physical Properties
Appearance: Tan colored powder
Specific Gravity: 1.247 gm/cm³
Surface Tension: 71 dynes/cm
Chemical Properties
Sodium Napthalene Sulphonate: 85%
Sodium Sulphate: 10%
Water: 5%
Solubility: Soluble in water
pH: 9.5 (1% solution)
Packaging & Controls
WHMIS: Not controlled
TDG: Not regulated
Packaging: 22.7kg bags