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10 gram Silica Gel Sachets

10 gram Silica Gel Desiccant Sachets – Tyvek Packaging – Comes packed in an air tight bag ensuring your silica gel is fresh, dry and ready to go.

Silica Gel is a widely used absorbent, which can exert its extraordinary moisture absorption capacity under all kinds of humidity. It is toxic-free, harmless, stable in chemical properties and relatively high in mechanic strength. It is the only absorbent approved by the U.S. Food and Drug Administration (USFDA) that is able to be in direct contact with food and medicine.

There are many forms of moisture damage which Silica Gel will prevent including rust, corrosion, oxidation, mildew, fungus, mold and fogging. Silica Gel comes in many shapes and sizes allowing it to be used across all industries. It is particularly popular with electrical goods, electronic components, scientific and optical instruments, communication equipment, metallic parts, leather goods, pharmaceuticals and food.

Applications

In many items from leather to pepperoni, moisture encourages the growth of mold and spoilage. Condensation may also damage other items like electronics and may speed the decomposition of chemicals, such as those in vitamin pills. By adding packets of silica gel, these items can be preserved longer.

Silica gel may also be used to keep the relative humidity inside a high frequency radio or satellite transmission system waveguide as low as possible. Excessive moisture buildup within a waveguide can cause arcing inside the waveguide itself, damaging the power amplifier feeding it. Also, the beads of water that form and condense inside the waveguide change the characteristic impedance and frequency, impeding the signal. It is common for a small compressed air system (similar to a small home aquarium pump) to be employed to circulate the air inside the waveguide over a jar of silica gel.

Silica gel is also used to dry the air in industrial compressed air systems. Air from the compressor discharge flows through a bed of silica gel beads. The silica gel adsorbs moisture from the air, preventing damage to the compressed air users due to condensation or moisture. The same system is used to dry the compressed air on railway locomotives, where condensation and ice in the brake air pipes can lead to brake failure.

Silica gel is sometimes used as a preservation tool to control relative humidity in museum and library exhibitions and storage.

Silica gel is non toxic, non flammable, and non reactive and stable with ordinary usage. It will react "with hydrogen fluoride, fluorine, oxygen difluoride, chlorine trifluoride, strong acids, strong bases, and oxidizers"[5]. Silica gel "is irritating to the respiratory tract", "May cause irritation of the digestive tract", and dust from the beads may cause irritation to the skin and eyes, so precautions should be taken [6].. Some of the beads may be doped with a moisture indicator, such as cobalt(II) chloride, which is toxic and may be carcinogenic. Cobalt (II) chloride is deep blue when dry (anhydrous) and pink when moist (hydrated).

Features

  • Typically used in food and pharmaceutical applications
  • High crush strength and high porosity
  • Remains dry and free flowing even when saturated
  • Has relatively high capacity for moisture at temperatures below 77°F (25°C) with relative humidity above 40%
  • Chemically inert, non corrosive and non toxic

DuPont TYVEK as the packaging material is used for their Silica Gel Desiccants.

TYVEK Benefits Include

  • Superior water vapour transmission rate (WVTR)
  • No liquid water transmission, it is leak proof
  • Anti-static and dustproof
  • High strength
  • FDA certified, non-toxic and safe

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