Technical Data Sheet
Silica gel red/yellow, 1 kg
Melting point (mp) >1700 °C
CAS No. 7631-86-9
EG-Nr. 231-545-4
€44.65/Pack Qty.
excl. VAT. | 1 kg per Pack Qty.
Art. No. 3955.2
Product details
Alternative product: environmentally friendly silica gel.
- Patented, organic humidity indicator - heavy metal free
- Reversible colour change
- We recommend activating silica gels before using it for the first time
Silica gel red/yellow 1-3 mm, with indicator, beads
- Regeneration at 120 °C, approx. 4 hours
- Adsorptive capacity: at 40 % rel. humidity approx. 20 wt%
- Colour change from red to yellow
| Regeneration | 120 °C, approx. 4 hours |
- Subtotal: 0.00
| Art. No. | Pack Qty. | Pack. | Price | Quantity | |
|---|---|---|---|---|---|
| 3955.1 | 500 g | plastic |
€25.70 |
|
|
| 3955.2 | 1 kg | plastic |
€44.65 |
|
|
| 3955.3 | 2.5 kg | plastic |
€89.15 |
|
|
| 3955.4 | 10 kg | plastic |
€278.45 |
|
|
|
In stock
Available
In procurement
No longer available
Delivery date currently unknown
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- Subtotal: 0.00
Downloads / MSDS
General information
Desiccants can absorb water and bind it chemically (reversibly or irreversibly) or physically. The main desiccants can be subdivided into four categories:
- non-renewable chemical desiccants
- renewable chemical desiccants
- silica gels
- molecular sieves
| Solvent | Molecular sieve |
Potassium carbonate |
Calcium chloride |
Phosphous pentoxide |
| Acetic acid | - | - | - | + |
| Acetic acid anhydride | - | - | + | - |
| Acetic acid ethyl ester | 4 Å | + | - | + |
| Acetic acid methyl ester | 4 Å | + | - | + |
| Acetone | 3 Å | + | + | - |
| Acetonitrile | 3 Å | + | + | + |
| Benzene | 4 Å | - | + | - |
| 1-Butanol | - | + | - | - |
| 2-Butanol | - | + | - | - |
| 1-Butanone | - | + | + | - |
| Chloroform | 4 Å | - | + | + |
| Cyclohexane | 4 Å | - | - | - |
| Dichloremethane | 4 Å | - | - | - |
| Diethylether | 4 Å | - | + | - |
| Diisopropyl ether | 4 Å | - | + | - |
| Dimethyl formamide | 4 Å | - | - | - |
| Dioxan | 4 Å | - | + | - |
| Ethanol | 3 Å | - | - | - |
| Ethyle formate | - | - | + | - |
| n-Hexane | 4 Å | - | - | - |
| Methanol | 3 Å | - | + | - |
| 2-Propanol | 3 Å | - | - | - |
| Pyridine | 4 Å | - | - | - |
| Tetrahydrofurane | 4 Å | - | + | - |
| Toluene | 4 Å | - | + | - |
| Trichloroethylene | - | + | - | - |
| Xylene (Isomer compound) | 4 Å | - | + | - |
Silica gels protect moisture sensitive goods or chemicals during storage and transport. They are suitable for drying virtually all gases and solids.
Silica gels have a broad spectrum of application in the laboratory and in technical and industrial sectors:
- Possible applications in the laboratory are in desiccators, drying towers and in absorption tubes
- In the industrial sector they are mainly used in drying plants and with various types of packaging
- Are not suitable for drying liquids and alkaline substances
In order to achieve low residual water content over the silica gel, the capacity can only be utilised partially. The less silica gel is loaded with water the more intensively it dries. For example, to achieve a residual water content of 1 mg/l the loading must not be higher than 5,2 g water per 100 g silica gel.
Is not possible for the desiccant bags, as the long fiber paper is not temperature-stable.
Certificates of Analysis
Type analysis
| Particle size | 1-3 mm |
| Adsorptive capacity | |
| 40 % rel. humidity | approx. 20 weight % |
| Filled under protective gas. Change in colour from red to yellow. Regeneration at max. 120 °C, approx. 4 hours. | |