SILICA GEL (CHROMATOGRAPHY GRADE – MULTI MESH RANGE)

SILICA GEL (CHROMATOGRAPHY GRADE – MULTI MESH RANGE)
Chemical Name: Silicon Dioxide (Amorphous)
CAS Number: 7631-86-9
Chemical Formula: SiO₂
Molecular Weight: 60.08 g/mol
Grade: Column / Chromatography Grade
Appearance: White granular / powder solid
Available Mesh Sizes
35–70 mesh (Coarse)
60–120 mesh (Medium coarse)
70–230 mesh (Standard column grade)
100–200 mesh (Intermediate precision)
230–400 mesh (Fine / high-resolution)

Description
Silica gel is a highly porous, polar adsorbent used extensively as a stationary phase in chromatography. Different mesh sizes determine flow rate, resolution, and separation efficiency, making it adaptable for a wide range of laboratory purification processes.
Mesh Size Function Guide (Critical for Buyers)
35–70 mesh: Fast flow, low resolution (bulk separations)
60–120 mesh: Balanced flow and separation
70–230 mesh: Industry standard for column chromatography
100–200 mesh: Improved resolution with moderate flow
230–400 mesh: High-resolution separations, slower flow

Key Properties
High surface area (~500–800 m²/g)
Strong adsorption capacity
Polar stationary phase
Chemically stable and inert
Hygroscopic (absorbs moisture)

Applications
Column chromatography (primary use)
Flash chromatography
TLC sample preparation (coarse grades)
Organic compound purification
Pharmaceutical R&D and academic labs

Specifications (Typical – Loba / Merck / Equivalent)
pH (10% slurry): 6.5 – 7.5
Loss on drying: ≤ 5%
Iron (Fe): Trace level
Particle distribution: Controlled per mesh
Surface area: High and consistent

Hazard Information
Not classified under GHS (as labeled)
⚠️ Dust may cause respiratory irritation
Prolonged exposure may affect lungs

Handling & Safety
Avoid inhalation (use dust mask)
Use gloves and goggles
Work in well-ventilated area
Minimize dust formation

Storage
Store in airtight container
Keep dry and moisture-free
Room temperature conditions
Avoid contamination

Packaging
Available in: 500 g, 1 kg, 5 kg, 25 kg
Supplied in HDPE containers (as shown)
Comparable Suppliers
Loba Chemie Pvt. Ltd.
Merck (Silica Gel 60 series)
Sigma-Aldrich
SRL (Sisco Research Labs)
Himedia
Molychem

Applications Insight (WLS Note)
Silica gel is a high-turnover consumable across:
Universities
Pharma labs
Chemical research labs.