Technique: | Washed Kaolin |
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Application: | Paper, Ceramic, Refractory, Coatings, Water-Based Inks, Leather Adhesives, Cos |
Shape: | White Powder |
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Testing items | Typical indicators | notes |
appearance | White Powder | visualization |
whiteness(%) | 84-86 | Measurement using a whiteness meter with a wavelength of 457nm |
granularity (-2 μ m%) | 50-60 | BT-9300H laser particle size analyzer |
Average particle size(μm) | ≤2.2 | BT-9300H laser particle size analyzer |
moisture content(%) | ≤2.0 | Maintain a constant temperature of 105 ºC for 2 hours |
PH | 5.0-7.0 | 10% aqueous solution |
sieve residue(+325%) | ≤0.02 | Wash with water |
oil absorption (g/100g) | 40-50 | GB/T 14563-2008 |