Evonik Sipernat D10 is a German imported hydrophobic precipitated silica specially developed for high-efficiency defoamers. It features excellent hydrophobicity, fast dispersion, strong defoaming and antifoaming performance, suitable for mineral oil, silicone oil and harsh acid-base systems, also used as powder flow aid and anti-caking agent.
Ultra-high defoaming efficiency - 5–10 times in mineral oil systems and nearly 2 times in silicone oil systems than ordinary fumed silica
Strong acid & alkali resistance - Stable defoaming performance in harsh acid and alkali environments
Fast dispersion at low temperature - Easily dispersed at room or 60–80℃ without high-temperature hydrophobic modification
Cost-effective formulation - Reduce dosage by 20–40%, fast defoaming & long antifoaming, lower total cost
Dual-function application - Combine defoaming activity with powder flow & anti-caking, multi-purpose
Mineral oil defoamers - Efficient defoaming for wastewater treatment, industrial cleaning, paper & coatings
Silicone defoamers - Enhanced efficiency for textile, fermentation, coatings and daily chemicals
Strong acid & alkali systems - Suitable for electroplating, chemical synthesis, metal processing
Moisture-sensitive powders - Used as flow aid and anti-caking agent for better processing & storage
Industrial cleaning formulations - Fast defoaming for various cleaners and surface treatment fluids
| Product Type | Precipitated Silica |
| Appearance | White Powder |
| SiO₂ Content | >97 wt% |
| pH Value (5% Water Solution) | 6.5 |
| Particle Size D50 | 115 μm |
| Specific Surface Area (N₂) | 180 m²/g |
| Oil Absorption | 210–240 ml/100g |
| Loss on Drying | ≤6.0 wt% |
| CAS No. | 7631-86-9, 112926-00-8 |
| Packing | 15 kg/bag |
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