Silica (SiO2)
1. Application
Silica is widely used in:
- Chromatography (as stationary phase in column chromatography and TLC)
- Adsorbent for drying and moisture removal
- Catalyst support in chemical reactions
- Laboratory experiments for filtration and separation
- Industrial applications: glass, ceramics, paints, and electronics
- Polishing, abrasive, and silica gel desiccant applications
2. Compliance Standard
- ISO 9001 certified manufacturing
- Laboratory reagent / AR / ACS grade
- Conforms to USP / BP / EP standards (where applicable)
- ASTM D 4946 for precipitated silica (industrial grade)
- REACH and RoHS compliant (non-toxic, heavy-metal free)
3. Product Description
Silica is a white, odorless, non-toxic crystalline or amorphous powder.
- Chemical Formula: SiO2
- Available in forms: Fumed silica, Precipitated silica, Silica gel beads, Silica powder
- Insoluble in water, acids, and most organic solvents (except hydrofluoric acid)
- High surface area and porous structure (depending on grade)
4. Technical Specifications
|
Parameter |
Specification |
|
Material |
Silicon Dioxide (SiO2) |
|
Appearance |
White crystalline / amorphous powder |
|
Purity |
≥ 99% (for lab grade) |
|
Moisture Content |
≤ 1% |
|
Particle Size |
5–100 µm (customizable) |
|
Bulk Density |
0.1–0.6 g/cm³ (depending on grade) |
|
Surface Area |
50–200 m²/g (fumed or high-surface silica) |
|
Solubility |
Insoluble in water, acids, and organic solvents |
|
Thermal Stability |
Up to 1000°C (depending on form) |
|
pH (aqueous slurry) |
6–8 |
|
Storage |
Dry, cool, airtight container |
5. Apparatus is Supplied
- Silica powder, fumed silica, or silica gel beads
- Packed in HDPE bottles, kraft paper bags with liner, or plastic drums
- Certificate of Analysis (CoA) supplied with batch number and purity
6. Optional Accessories
- Laboratory desiccators and drying ovens
- Chromatography columns and TLC plates
- Sieves for particle size separation
- Analytical balances and spatulas
- Safety gloves and dust masks
7. Common Capacities Available
- 50 g
- 100 g
- 250 g
- 500 g
- 1 kg
- 5 kg bulk pack
- 25 kg / 50 kg industrial bags
8. Dimensions & Weight (Approx.)
|
Pack Size |
Approx. Container Dimensions |
Approx. Gross Weight |
|
50 g |
60 mm × 100 mm |
80 g |
|
100 g |
70 mm × 120 mm |
120 g |
|
250 g |
100 mm × 150 mm |
270 g |
|
500 g |
120 mm × 180 mm |
550 g |
|
1 kg |
150 mm × 200 mm |
1.1 kg |
|
5 kg |
250 mm × 300 mm |
5.5 kg |
|
25 kg |
400 mm × 500 mm |
25–26 kg |
9. Safety & Handling
- Avoid inhalation of fine dust (may cause respiratory irritation)
- Use gloves, dust mask, and goggles while handling powder
- Store in a dry, closed container to avoid moisture absorption
- Non-flammable and chemically inert under normal laboratory conditions