Cobalt-free eco-friendly humidity indicator silica gel
SN-DES-04 comes in three variants (purple, orange, yellow) as spherical/irregular granules, cobalt-chloride-free and non-toxic. Changes color with humidity for RH indication, used in the same fields as blue silica gel (precision instruments, pharma, petrochem, food, garments, appliances, aviation, defense).
Key Features
- 🔬 High-Purity SiO₂ — Based on high-purity silicon dioxide — stable chemical and thermal performance
- 🧪 Custom Production — Packaging and specifications tailored to customer requirements
Technical Specifications
| Item | Value |
|---|---|
| RH 20 % | Light amber / Orange |
| RH 50 % | Light gray-green / Colorless |
| SSA | 650–800 m²/g |
| Size | 1–6 mm |
| Country of Origin | China |
Main Applications
Silica Gel
Particle size, purity, surface treatment and packaging can be customized to your specification. Contact us for samples, TDS and quotations.