Bentonite Hpm-20 : 50 pound bag
High-purity, air-classified sodium bentonite, selectively-mined, consisting of Description micronized particles and supplied as a free-flowing powder.
This high-purity montmorillonite is typically used as a suspending agent, viscosifier, Use binder, and emulsion stabilizer.
Hydrous aluminum silicate, air purified to concentrate the finest montmorillonite fraction from the bentonite ore.
Contains traces of feldspar, quartz, calcite, and gypsum. Insoluble in water or alcohol; one gram of clay produces a surface area greater than 750 sq. meters when fully dispersed.
Moisture 12% maximum as shipped
Texture Soft, slippery
Viscosity 8-30 cps @ 6.25% solids
Odor None
Specific Gravity 2.6
Taste None
Color Gray to Tan
pH 8.5-10.5 @ 2% solids
Dry Particle Minimum 99.00% finer than 200 mesh (74 microns).
Size Wet Particle Minimum 99.75% finer than 200 mesh (74 microns).
Size Minimum 99.00% finer than 325 mesh (44 microns).
Chemical Dioctahedral smectite, an expanding layer silicate:
Formula (Na,Ca)0.33 (Al1.67Mg0.33)Si4O10(OH)2 . nh4O
Elemental Typical analysis – moisture free.
Composition
SiO2 69.56%Al2O3 20.69%
MgO 2.70%
Fe2O3 4.85%
CaO 1.30%
Na2O 2.43%
K2O 0.30%
LOI 4.80%
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