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Technical Data Sheet Bentonite

Compound Information
Product Name: Bentonite
CAS No.: 1302-78-9
Molecular Formula: Al2O3.4(SiO2).H2O
Molecular Weight: 360.31
Revision Date: 2026-04-15
Analytical Information
Tests Specifications
Description Cream colored powder
Grade EP grade
pH (2% w/v water suspension) 9 – 10.5
Arsenic (As) <8 ppm
Swelling power <24 ml
Loss on drying (105°C) 5 – 12%
Sedimentation volume <2 ml
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