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Moisture Absorbing Silica Gel Desiccant Packets Reusable Silica Gel Quantity: 25 Pcs (1 gram each) Introducing DMF free Silica gel Desiccant in sachets used for moisture protection in export packing. It is 100% DMF free product.Silica gel Desiccant sachets adsorbs 25-30% moisture at 100% R.H. and at 25°C. In one cubic meter we recommend 1 kg of silica gel.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). A micro porous structure of interlocking cavities gives a very high surface area.It is this structure that makes silica gel a high capacity desiccant. The beauty of silica gel is the physical adsorption of water vapour into its internal pores. There is no chemical reaction, no by products or side effects. Even when saturated with water vapour, silica gel still has the appearance of a dry product, its shape unchanged.Advantages of silica gel as a desiccantSilica gel has many other properties that recommend it as a desiccant. It will adsorb up to one third of its own weight in water vapor. This adsorption efficiency is approximately 35% greater that typical desiccant clays, making silica gel the preferred choice where weight or efficiency are important factors.It has an almost indefinite shelf life if stored in airtight conditions.It can be regenerated and re-used if required. Gently heating silica gel will drive off the adsorbed moisture and leave it ready for reuse.It 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.It is non-toxic and non-flammable.It 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.Standard white silica gel is referred to as being non-indicating. As it adsorbs moisture it remains physically unchanged. Non-indicating silica gel is both cheap and effective, available loose in bulk packs or packed in sachets. Indicating silica gel are colored gels whose color changes as they adsorb moisture.Uses : PROTECT JEWELLERY Moisture can lead to tarnish and corrosion on silver and jewelry. Slip few silica gel packets in your silver chest or jewelry box to keep those items tarnish free and looking great! SAVE YOUR ELECTRONICS If you accidentally get water in your camera or cell phone, store it immediately in a plastic bag filled with silica gel packets, which will absorb the moisture and save the device in a matter of days. PROTECT YOUR ELECTRONICS Here's a secret that the photo-savvy know : Keep silica gel packets in your camera case at all times to prevent moisture-related problems. And if you're headed to the beach, pack a plastic zip-top bag with a silica gel pack inside, and use it to stash and seal up cell phones, cameras and other electronic equipment. When you open it to answer to phone or take a picture some moisture can get inside the bag. The silica gel will quickly wick away the moisture and protect the electronics. PROTECT YOUR PHOTOS Put silica gel packet in the boxes where you store your photos to keep them safe and dry. PROTECT FISHING EQUIPMENT If you're an outdoor sports enthusiast keep silica gel packets in tackle boxes, golf bags or with your climbing gear. The packets will prevent rust from forming on your equipment. This also works to protect your tools in the toolboxes or workshop. PROTECT YOUR WARDROBE If you live in a high humidity area, stash silica gel packets in with your clothes when you put them in storage for the winter and in your closets where you store coats and linens. They will wick away excess moisture and prevent mustiness. & lot more uses... Tips: If your silica gel packets don't seem to be working any more, put them on a cookie sheet in a 100 degree oven for an hour to recharge! When you're not using the packets, keep them in an airtight container to protect them from surrounding moisture.