Introduction

Blue Silica Gel is a synthetic, porous form of silicon dioxide (SiO₂) containing a moisture indicator-typically cobalt chloride. It appears blue when dry and gradually changes to pink as it absorbs moisture.

Parameters and Specifications

Type		Blue Silica Gel
Chemical Formula		MSiO₂ . nH₂O
Appearance		Blue granular (Co or non-Co)
Diameter(mm)		0.5-1.5, 1-2, 1-3, 2-4, 2-5, 3-5, 3-6, 4-6, 4-8
SiO₂(%)		≥99
Adsorption Capacity(%wt)	25℃, RH20%	≥8.0
	25℃, RH35%	≥13.0
	25℃, RH50%	≥20.0
Color Change	25℃, RH20%	Blue or light blue
	25℃, RH35%	Blue purple
	25℃, RH50%	Purple red
Wear Ratio(%)		≤10
Loss on Ignition(%)		≤2.0
Particle Ratio(%)		≥90

Features

Color indication function: Changes from blue (dry) to pink (saturated), enabling easy monitoring

Fast moisture absorption: Quickly removes humidity from enclosed environments

Large surface area and porous structure: Provides efficient adsorption performance

Reusable: Can be regenerated by heating to restore performance

Key Applications

Industrial drying: Air, gas, and equipment moisture removal

Electronics protection: Prevents moisture damage in electronic components and devices

Transformer breathers: Used in power equipment for humidity control

Packaging and storage: Protects goods during transportation and storage

Laboratory use: Moisture indication in desiccators and sealed systems

Precision instruments: Prevents corrosion and performance degradation

Why Choose Us

Stable quality with high adsorption efficiency

Consistent color indication performance

Strict quality control and reliable production

Fast delivery and flexible packaging options

Professional technical support and responsive service

FAQ

Q: How does blue silica gel indicate moisture?

A: It changes color from blue to pink as it absorbs moisture, showing the saturation level.

Q: Can blue silica gel be reused?

A: Yes, it can be regenerated by heating to remove absorbed moisture.

Q: What is the main difference between blue and orange silica gel?

A: Blue silica gel contains cobalt chloride as an indicator, while orange silica gel is cobalt-free and more environmentally friendly.

Q: Is blue silica gel safe?

A: It is suitable for industrial use, but due to cobalt chloride, it is not recommended for food or pharmaceutical applications.

Q: How should it be stored?

A: Store in a sealed, dry container to prevent premature moisture absorption.

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Technical Specification

Type		Blue Silica Gel
Chemical Formula		mSiO₂ . nH₂O
Appearance		Blue granular (Co or non-Co)
Diameter(mm)		0.5-1.5, 1-2, 1-3, 2-4, 2-5, 3-5, 3-6, 4-6, 4-8
SiO₂(%)		≥99
Adsorption Capacity(%wt)	25℃, RH20%	≥8.0
	25℃, RH35%	≥13.0
	25℃, RH50%	≥20.0
Color Change	25℃, RH20%	Blue or light blue
	25℃, RH35%	Blue purple
	25℃, RH50%	Purple red
Wear Ratio(%)		≤10
Loss on Ignition(%)		≤2.0
Particle Ratio(%)		≥90

Application

Moisture Prevention And Packaging Desiccant
Industrial Air Drying