Bulk Granules

Orange Silica Gel

Eco-Friendly Indicating Desiccant (Orange to Green)

Key Features: Changes from orange to dark green when saturated. Cobalt-free, non-toxic, and safe for food and pharmaceutical applications.

Orange Silica Gel (Moisture Indicator Type)

Orange Silica Gel is an environmentally friendly, non-toxic moisture indicator desiccant. It is free of cobalt chloride and meets international environmental protection standards such as RoHS.

This product contains a moisture-sensitive indicator that changes color according to humidity levels, allowing users to visually monitor the adsorption status.

Dry State:
Orange

After Moisture Absorption:
Dark Green / Green

It is widely used for moisture protection and humidity indication in sealed packaging.

🌍 Applications

Electronic components & semiconductors
Optical instruments & precision equipment
Pharmaceutical & medical packaging

Food packaging (indirect contact)
Leather, textiles & garments
Containers, machinery & storage systems

⚙️ Specifications

Item	Specification
Appearance	Orange spherical beads
Particle Size	1–3 mm, 2–4 mm, 2–5 mm
Bulk Density	≥ 0.72 g/ml
Specific Surface Area	≥ 650 m²/g
Pore Volume	≥ 0.35 ml/g
Moisture Adsorption (RH=20%)	≥ 8%
Moisture Adsorption (RH=50%)	≥ 20%
Moisture Adsorption (RH=90%)	≥ 30%
Heating Loss	≤ 5.0%
Color Change Range	Orange → Green

✅ Key Features

Eco-friendly — Cobalt-free, non-toxic, RoHS compliant
Clear Color Indication — Easy visual monitoring of humidity level
High Adsorption Capacity — Excellent moisture absorption

Reusable — Can be regenerated and reused multiple times
Stable Chemical Properties — Safe, non-corrosive, and chemically stable

📦 Regeneration

Orange silica gel can be regenerated by heating:

Method: Heat at 100–120°C for 2–3 hours until the color returns to the original orange. It can then be reused.

Packaging

1g–1000g small sachets or 25kg bulk bags. Custom packaging available upon request.

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