1.01969

Silica gel with indicator (orange gel),

granulate ~ 1 - 3 mm

• Synonym(s): Orange Silica Gel
• UNSPSC Code: 41123003
• NACRES: NB.21

Properties

• agency: suitable for EPA OTM-45
• Quality Level: 200
• form: granular
• surface area: 700 m²/g
• loss: ≤2.0% loss on drying, 140°C
• particle size: 1-3 mm
• pore size: 2.0-2.5 nm
• capacity: 250 g/kg water absorbing capacity(20 °C)
• mp: >1000 °C
• application(s): PFAS testing; histology
• storage temp.: 2-30°C

Description

General description

Silica gel with the indicator or orange gel frequently used as a drying agent in laboratories is suitable for drying all gases and solids. It is used in drying towers, desiccators, and absorption tubes. Due to its vast surface area, silica gel orange provides excellent absorption capacity, enabling longer storage conditions. When it absorbs moisture, it also turns orange to colorless. (approx. 6 wt % load).

Application

Silica Gel with Orange gel indicator can be used for:

• Moisture Management: Commonly found in desiccators, it protects hygroscopic chemicals and solids from moisture, ensuring sensitive materials stay intact during storage and experimentation.
• Chromatographic Adsorption: Serves as a stationary phase in chromatography, aiding in the effective separation and analysis of various chemical compounds.
• Equipment Protection: In laboratory settings, it absorbs excess humidity to prevent corrosion and damage to sensitive equipment, extending the lifespan of valuable instruments.
• Drying Agent for Gases and Liquids: Utilized in drying towers and absorption tubes, it efficiently removes moisture from gases and liquids, improving the accuracy of analytical results.

Analysis Note

Water absorption capacity (24 hrs.,80 % relative humidity): ≥ 25.0 %
Loss on drying (140 °C): ≤ 2.0 %
Bulk density: about 70

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable