Desiccant Packs - All You Need to Know

Could the idea behind desiccant packs ever be thought of as being monumental? In 2009, curators at the British Science Museum chose 10 important inventions. Then, they asked the public to vote on which invention they thought he was the best. On the list were well-known scientific achievements like Stephenson's Rocket, Penicillin, and the five-needle telegraph made by Cooke and Wheatstone. Undoubtedly, these inventions have had a big effect on the past, the present, and maybe even the future. But is it possible that everyday things, such as desiccant packs, were missed?

Even though desiccant packs seem boring, they have an interesting past. Silica gel, often used in packs, has been around for about 370 years, so it has had plenty of time to change history. During the horrible gas attacks of World War I, people put silica gel packs in their gas mask containers to soak up the vapors that made them unable to move. During World War II, these packs were used to keep military gear and penicillin from drying out. This is a very impressive fact. Penicillin was on the list of important inventions for a good reason, so why shouldn't the thing that keeps penicillin from losing its effectiveness also be mentioned? Undoubtedly, innovations like Reynold's X-ray machine and Crick and Watson's DNA model have saved or helped save lives, but it's also clear that desiccant packs have kept people alive.

Desiccant packs are one of the few things that can do more than one thing. Most people are used to seeing one of these simple, unremarkable packages fall out of a new TV or pair of shoes. Sometimes it can be a little annoying. Most people just throw them away without giving them another thought. But these packs can be recycled and used for many things around the house. You might not believe it, but silica gel packets can be used to keep important information and memories. Put them in an envelope with important papers and photos, and save them from the damage that moisture or mildew can do. If your important cell phone gets wet, take out the battery and SIM card. Put the phone in a pot with a few silica gel packets and leave it overnight. In the morning, the phone will be ready to use. Even though these aren't the most amazing things, when you think about how desiccant packs can be used, it becomes clear that they could make a huge difference in our lives.

Container desiccant or packs used to reduce humidity in many ways often have desiccant materials. A desiccant can pull water from the air around it, keeping a space dry. Absorption and adsorption are chemical drying processes describing how a desiccant works.

Even though chemicals that dehumidify through absorption or even adsorption have similar effects, there are very different scientific reasons why they work. When one substance becomes a part of another, this is called absorption. Adsorption, on the other hand, happens when two ingredients form a physical bond that keeps one inside the other. For example, most desiccants, like silica gel, montmorillonite clay, activated charcoal, and products that work as molecular sieves, soak up water because their surfaces are porous.

Most of the time, desiccants increase the amount of moisture in packages. Many things need to be kept dry because moisture can make them contaminated, which can cause damage. Desiccant packs are usually used for food, fabrics, electronics, leather, tools, sporting goods, medical and scientific instruments, historical artifacts, artwork, film, and manuscripts.

One of the most common ways that desiccants, especially silica gel, are used is in shipping. By changing color when exposed to water, silica gel shows that there is moisture. Activated charcoal is a great desiccant used in air or water filters. People often use montmorillonite clay to keep pet food from getting stuck together. A desiccant is like a molecular sieve when it can filter molecules based on size. A molecular filter can take in substances from both gases and liquids. This makes it perfect for separating compounds and drying reactive supplies, which are needed in the oil and petroleum industries which deal with flammables.

The right desiccant should be chosen based on the packaging and product it will protect and the desiccant itself. Some things to consider are the environment to which the product may be exposed, the size of the desiccant, and the material from which the desiccant pack is made.

Most indicating silica gel is sold in granular form because it needs to be seen to do its job. But because cobalt chloride is a toxic salt, silica gel shouldn't be used with food. Other desiccants like silica gel, activated charcoal, and montmorillonite clay come in many different sizes, and their desiccant packs can be made of many different materials.

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