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Item | Standard | Lab result |
Color | Referring to the sample | Complying with sample |
Sio2 content (%) | ≥96.0 | 98.77 |
DBP absorption value (m³) | 2.00-3.50 | 3.46 |
PH value | 5.0-8.0 | 6.6 |
(%) ignition lost | 4.0-8.0 | 5.1 |
(%) heating lost | ≤7.0 | 4.33 |
BET(㎡) | / | 256 |
(%) Soluble matter | ≤1.5 | 0.26 |
(mg/kg) Iron content | ≤500 | 219 |










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