product

product

You are here: ...
home / product
 

Silica gel is an amorphous form of silicon dioxide, which is synthetically produced in the form of hard irregular granules (having the appearance of crystals) or hard irregular beads. It is available in porous, granular, and amorphous form, synthetically manufactured from the chemical reaction between sulfuric acid and sodium silicate. The internal structure of Silica Gel is composed of a vast network of interconnected microscopic pores which attract and hold water, alcohol, hydrocarbons and other chemicals by the phenomena known as physical adsorption and capillary condensation.

Silica Gel has been the desiccant of choice by government and industry since W.W.II. By surface adsorption, Silica Gel drinks up excess humidity from the air. It prevents condensation within enclosed areas which causes irreparable damage: rust, corrosion, tarnish, oxidation, mildew, fungus, mold, odor, spoilage, spotting, toning, stains on stamps & documents; fogging of lenses; deterioration of foods and medicines.

 

Features

Silica Gel is available in porous, granular, and amorphous form, synthetically manufactured from the chemical reaction between sulfuric acid and sodium silicate. The internal structure of Silica Gel is composed of a vast network of interconnected microscopic pores which attract and hold water, alcohol, hydrocarbons and other chemicals by the phenomena known as physical adsorption and capillary condensation. 

 

Trade Name

White Silica Gel

Chemical Family

Sodium Silicate

Chemical Name

Synthetic Silica Gel

Formula

SiO2+H2O

 

Fact about Silica Gel

Chemical Data

Compound

SiO2

Fe2O3

Al2O3

TiO2

CaO

ZrO2

Na2O

Ig.loss

Contents (%)

99.71

0.01

0.19

0.09

0.01

0.02

0.02

0.02

 

Absorbing Ability  (30°C)

Relative  Humldity

Absorbing Ability
20%

>   10 %

50%

>  26%

90%

>  36%

 

Physical Data

Melting Point = 2900 oF , 1900 oC

Bulk Density >750 g./ l

Melting Point oC >190

Percent Vaporizes by Weight <10% at 175 oF

Appearance transparent bead

Specific resistance > 4,000 W. cm

Solubility In Water = Insoluble

Loss on drying < 3.0 %

Surface Area 650 m2 / g.

 

 

Applications of Silica Gel

For Industrial use

  Precision Apparatus 

  Keep precision equipment (such as IV etc.) safe from moisture

  AIR, LNG & LPG 

  Remove water from instrument air LNG or LPG

  Exports 

  Prevents exporting goods from moisture damage during shipment

  Warehouse & Freight 

  Effectively protects all valuable packaging from moisture damage

 

For Home use

  Foodstuff  

  Protects foodstuff from moisture damage, hence help maintain crisp and    freshness

  Pharmaceutica

  Ensure the quality of moisture sensitive pharmaceuticals

  Photo Material

  Protect film sensitive emulsions from changing color due to moisture

  Flower Drying

  Dries flower quickly and safety. Beautiful dried flowers last forever.

 

Advantages of Silica Gel

1

 Silica gel has ability to adsorb up to one third of its own weight in water vapour. This adsorption efficiency is approximately 35% greater that typical desiccant clays, making silica gel the preferred choice where weight or efficiency are important factors.

2

 Silica gel has an almost indefinite shelf life if stored in airtight conditions.

3

 Silica gel can be regenerated and reused if required. Gently heating silica gel will drive off the adsorbed moisture and leave it ready for reuse.

4

 Silica gel is a very inert material, it will not normally attack or corrode other materials and with the exception of strong alkalis and hydrofluoric acid is itself resistant to attack.

5

 Silica gel is non-toxic and non-flammable.

6

 Silica gel is most frequently and conveniently used packed in a breathable sachet or bag. These are available in a wide range of sizes suitable for use with a wide range of applications.

 

Packing Material

Plastic, Paper, 
Non Woven Bag, Cloth Bag
Paper Drum
1 Gram-2,000 Grams Package available

 

Variation of color indicating

20%

Blue or Light Blue

35%

Grey or Purple

50%

Pink of Pinkish

 

Material Safety Data

Safety Direction

Reaction

  Reactivity is stable under normal temperatures and pressures in sealed containers. Hazardous polymerization will not occur.

Spill

  Clean up personnel need protection against inhalation of dusts or fumes. Eye protection is required. Vacuuming methods of clean up are preferred.

Inhaled

  May cause health hazards when Inhaled, ingested or in contact with the eye and skin. Prolonged Inhalation may cause irritation to the upper respiratory track and lung damage. Contact with eye tissue may result irritation.

Fire

  Nonflammable but negligible fire and explosion hazard when exposed to heat or flame by reaction with Incompatible substances. When fire occurs, use dry chemical, water spray, or foam. For larger fires, use water spray fog or foam.

 

First Aid

Inhalation

  Remove to fresh air immediately. If breathing has stopped, give artificial respiration. Keep affected person warm and at rest. Get medical attention immediately.

Ingestion

  If large amounts have been ingested, give emetics to cause vomiting stomach siphon may be applied as well .Milk and fatty acids should be avoided. Get medical attention immediately.

Eyes

  Wash eyes immediately and carefully for 30 minutes with running water, lifting upper and lower eyelids occasionally. Get prompt medical attention.

Skin

  To avoid repeated or prolonged contact with this chemical, use good hygienic practices. Wash with soap and a large amount or water. Get medical attention if irritation or Inflammation develops.