Off White Sodium Bentonite Powder (API Grade) – Technical Specification:
Off White Sodium Bentonite Powder (API Grade) : Off White Sodium Bentonite Powder (API Grade) is a premium-quality bentonite clay manufactured in China and supplied in 25 KG bags. The product offers excellent adsorption capacity, swelling characteristics, and suspension properties, making it suitable for drilling fluid preparation, piling works, civil engineering projects, foundry applications, and various industrial processes. Its controlled particle size distribution and low heavy metal content ensure reliable performance across demanding applications.
| Parameter |
Specification |
| Product Name |
Sodium Bentonite Powder |
| Appearance |
Off White Powder |
| Grade |
API Grade |
| Country of Origin |
China |
| Net Weight |
25 KG |
| Gross Weight |
25.50 KG |
| SiO₂ (%) |
55.0 – 65.0 |
| Al₂O₃ (%) |
12.0 – 25.0 |
| Particle Size D(50) |
6 – 23 µm |
| Particle Size D(90) |
16 – 50 µm |
| Average Grain Diameter D(4,3) |
8 – 27 µm |
| pH Value |
5.0 – 9.0 |
| Loss on Drying (%) |
≤ 10 |
| Adsorption Force |
0.35 – 0.55 g strychnine sulfate/g |
| Degree of Expansion |
2.0 – 5.0 |
| Dissolved in Water |
Residue ≤ 0.7 |
| Heavy Metals |
≤ 10 ppm |
| Chloride |
≤ 0.025% |
| Bacterial Count |
≤ 500 CFU/g |
| Yeast & Mold |
≤ 50 CFU/g |
| E. coli |
Absent |
| Salmonella |
Absent |
| Physical Form |
Fine Powder |
| Packaging |
25 KG Bag |
| Storage Condition |
Store in a cool, dry place away from moisture |
| Applications |
Drilling Mud, Piling, Foundation Engineering, Civil Construction, Foundry, Water Sealing and Industrial Uses |
Origin: China, Grade: API Grade, Color: Off White, Packing: 25 KG Bag, Form: Fine Powder, Supplier: RTC Dhaka