Silica
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Silica flour HS SF
Description & Applications
Treated Silica sand (silica flour) its main mineral composition is SiO2, silica sand color is milky white or colorless translucent. Silicon sand is an important industrial mineral raw material, widely used in glass, casting, ceramics and refractories, metallurgy, construction, chemicals, plastics, rubber, foods, Cosmetic, Medications, Agricultureو abrasive and other industries
Chemical Composition and Physical Properties
| Sio2 | 99.4-99.5% |
|---|---|
| Mgo | 0.04% |
| Al2o3 | 0.06 % |
| Fe2o3 | 0.011 % |
| Cao | 0.03 % |
| Na2o | 0.05 % |
| K2O | 0.01 % |
| Tio2 | 0.025 % |
| ZrO2 | 0.06 % |
| L.O.I. | 0.22 % |
Physical Properties
| Brightness (RY) (DIN 6174) | 87 % Min. |
|---|---|
| Whiteness (DIN 6174) | 88.5 % Min. |
| Color | White |
| Yellowness index | 3.6 Max. |
| Hardness (Mohs) | 7 Moh´s |
| Bulk Density (gm/cm3 | Lose 0.62 |
| pH (ISO 787/9) | 7 Max. |
| Oil absorption (ISO 787/5) | 25 ±1 g/100g |
| Specific surface (m2/g) | 2.1 |
Particle Size Distribution by MALVERN (MASTERSIZER 3000) on normal product:
| Item codes | HS SF |
|---|---|
| Particles <2 μm | 60 ± 2 % |
| Main Particle Size (D50) | 2.0 ±0.2 μm |
| Top Cut (D98) | 5 ± 1.0 μm |
Silica flour HS 45
Description & Applications
Silica sand (silica flour) its main mineral composition is SiO2, silica sand color is milky white or colorless translucent. Silicon sand is an important industrial mineral raw material, widely used in glass, casting, ceramics and refractories, metallurgy, construction, chemicals, plastics, rubber, abrasive and other industries
Chemical Composition and Physical Properties
Particle Size Distribution by MALVERN (MASTERSIZER 3000) on normal product:
Chemical Composition
| Sio2 | 99.4-99.5% |
|---|---|
| Mgo | 0.04% |
| Al2o3 | 0.06 % |
| Fe2o3 | 0.011 % |
| Cao | 0.03 % |
| Na2o | 0.05 % |
| K2O | 0.01 % |
| Tio2 | 0.025 % |
| ZrO2 | 0.06 % |
| L.O.I. | 0.22 % |
Physical Properties
| Brightness (RY) (DIN 6174) | 87 % Min. |
|---|---|
| Whiteness (DIN 6174) | 88.5 % Min. |
| Color | White |
| Yellowness index | 3.6 Max. |
| Hardness (Mohs) | 7 Moh´s |
| Bulk Density (gm/cm3 | Lose 0.62 |
| pH (ISO 787/9) | 7 Max. |
| Oil absorption (ISO 787/5) | 25 ±1 g/100g |
| Specific surface (m2/g) | 2.1 |
Particle Size Distribution by MALVERN (MASTERSIZER 3000) on normal product:
| Item codes | HS 45 |
|---|---|
| Particles <2 μm | 60 ± 2 % |
| Main Particle Size (D50) | 2.0 ±0.2 μm |
| Top Cut (D98) | 45 ± 1.0 μm |
Silica flour HS 75
Description & Applications
Silica sand (silica flour) its main mineral composition is SiO2, silica sand color is milky white or colorless translucent. Silicon sand is an important industrial mineral raw material, widely used in glass, casting, ceramics and refractories, metallurgy, construction, chemicals, plastics, rubber, abrasive and other industries
Chemical Composition and Physical Properties
Particle Size Distribution by MALVERN (MASTERSIZER 3000) on normal product:
Chemical Composition
| Sio2 | 99.4-99.5% |
|---|---|
| Mgo | 0.04% |
| Al2o3 | 0.06 % |
| Fe2o3 | 0.011 % |
| Cao | 0.03 % |
| Na2o | 0.05 % |
| K2O | 0.01 % |
| Tio2 | 0.025 % |
| ZrO2 | 0.06 % |
| L.O.I. | 0.22 % |
Physical Properties
| Brightness (RY) (DIN 6174) | 84 % Min. |
|---|---|
| Whiteness (DIN 6174) | 88.5 % Min. |
| Color | White |
| Yellowness index | 3.6 Max. |
| Hardness (Mohs) | 7 Moh´s |
| Bulk Density (gm/cm3 | Lose 0.62 |
| pH (ISO 787/9) | 7 Max. |
| Oil absorption (ISO 787/5) | 25 ±1 g/100g |
| Specific surface (m2/g) | 2.1 |
Particle Size Distribution by MALVERN (MASTERSIZER 3000) on normal product:
| Item codes | HS 75 |
|---|---|
| Particles <2 μm | 7 ± 2 % |
| Main Particle Size (D50) | 8 ± 0.1 μm |
| Top Cut (D98) | 75 ± 1.0 μm |
Silica flour HS 100
Description & Applications
Silica sand (silica flour) its main mineral composition is SiO2, silica sand color is milky white or colorless translucent. Silicon sand is an important industrial mineral raw material, widely used in glass, casting, ceramics and refractories, metallurgy, construction, chemicals, plastics, rubber, abrasive and other industries
Chemical Composition and Physical Properties
Particle Size Distribution by MALVERN (MASTERSIZER 3000) on normal product:
Chemical Composition
| Sio2 | 99.4-99.5% |
|---|---|
| Mgo | 0.04% |
| Al2o3 | 0.06 % |
| Fe2o3 | 0.011 % |
| Cao | 0.03 % |
| Na2o | 0.05 % |
| K2O | 0.01 % |
| Tio2 | 0.025 % |
| ZrO2 | 0.06 % |
| L.O.I. | 0.22 % |
Physical Properties
| Brightness (RY) (DIN 6174) | 84 % Min. |
|---|---|
| Whiteness (DIN 6174) | 85.5 % Min. |
| Color | White |
| Yellowness index | 3.6 Max. |
| Hardness (Mohs) | 7 Moh´s |
| Bulk Density (gm/cm3 | Lose 0.62 |
| pH (ISO 787/9) | 7 Max. |
| Oil absorption (ISO 787/5) | 17 ±1 g/100g |
| Specific surface (m2/g) | 2.1 |
Particle Size Distribution by MALVERN (MASTERSIZER 3000) on normal product:
| Item codes | HS 100 |
|---|---|
| Residue on a 40 micron sieve | 10 ± 2 % |
| Median particle size d 50 micron | 9 ± 0.2 μm |
| Top Cut (D98) | 100 ± 1.0 μm |
Silica sand HS High quality
Chemical analysis
| Sio2 | 99.5 – 99.6 |
|---|---|
| FE2O3 | 0.0140 |
| AL2O3 | 00.20-0.30 |
| TIO2 | 0.02500 |
| CR2O3 | 0.0020 |
| Moisture | 0.40 |
Characteristics
| Color | White |
|---|---|
| Grain Shape | Semi round- Angular |
| Bulk Density | (1400 – 1570 kg/m3) |
| Specific Gravity | 2.2 – 2.5 |
| Turbidity | < 100 |
| Hardness | 7 Moh |
| Attrition Loss | below 1% in 100 hours backwashing |
| Acid Solubility | below 2% [24hours in 20% Hal] |
| Size | 0.200 mm : 0.800 mm |