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- प्रॉपर्टीज़
- High pozzolanic activity, extreme fineness, white to grey color, amorphous silicon dioxide content, improves strength and durability in refractory applications.
- प्रॉडक्ट टाइप
- Undensified Microsilica for Refractory
- मेल्टिंग पॉइंट
- > 1600°C (amorphous, decomposes)
- घनत्व
- ग्राम प्रति घन सेंटीमीटर (g/cm3)
- दिखावट
- Grey to white fine powder
- उपयोग
- Additive for refractory concretes to enhance strength, reduce porosity, and increase durability
- अपवर्तक दर
- 1.46 (for SiO₂)
- सामग्रियां
- Amorphous silicon dioxide (SiO₂) > 85%, minor impurities
- स्ट्रक्चरल फॉर्मूला
- O=Si=O
- घुलनशीलता
- Insoluble in water
- Packaging
- Packed in 10 kg, 15 kg, 20 kg laminated/PP bags, or as required
- Loss on Ignition (LOI)
- < 6%
- Alkalinity
- Low (alkali content < 1.5%)
- Thermal Stability
- Excellent up to 1200C and above, suitable for refractory applications
- Bulk Density
- 250 - 350 kg/m3
- Secondary Components
- Minor amounts of Al2O3, Fe2O3, CaO, MgO
- Fineness (Specific Surface Area)
- > 17,000 m2/kg (BET method)
- Toxicity
- Non-toxic under normal use
- Hydrogen Ion Concentration
- Neutral
- SiO2 Content
- > 85% (commonly 85-92%)
- Compliance
- Meets ASTM C1240 and EN13263 standards for silica fume
- Average Particle Size
- 0.1 - 0.3 micron
About दà¥à¤°à¥à¤¦à¤®à¥à¤¯ à¤à¥ लिठà¤
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