1.01972

Silica gel with moisture indicator (brown gel)

desiccant ~ 1 - 4 mm

• Synonym(s): Brown Silica Gel
• UNSPSC Code: 41123003
• NACRES: NB.51

Properties

• Agency: suitable for EPA OTM-45
• Quality Level: 200
• form: granular
• surface area: 700 m²/g
• loss: ≤2.0% loss on drying, 150°C
• particle size: 1-4 mm
• pore size: 2.0-2.5 nm
• pH: 2-10 (50 g/L in H₂O, slurry)
• mp: >1000 °C
• storage temp.: 2-30°C

Description

General description

Silica gel with moisture indicator (brown gel) is commonly used as a desiccant in laboratories. Silica brown gel changes its color from brown to yellowish at water uptake from the atmosphere.

Analysis Note

Bulk density: about 75
Loss on drying (150 °C): ≤ 2.0 %
Water absorption capacity (24 hrs.,80 % relative humidity): ≥ 20.0 %

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable