Silica Gel Desiccants

Silica Gel can be used for various purposes. Silica gel is a good desiccant. Definitely, you must have seen the tiny silica gel packets along with the boxes of gadgets, shoe boxes and many other objects for daily use.

Silica Gel is not used for consumption but it is used as a good moisture absorber. However, we can safely use silica gel in food containers to keep our things fresh for long days. There should be a warning on the top of the silica gel packets, that have been given to the consumers not to consume silica gel in order to stave off from health issues in the long run. 

Silica Gel

Although silica gel desiccant is unsafe to eat, still the manufacturer of silica gel recommend customers to not ingest it. Before using silica gel, you should always read a note provided to all the readers, notifying that silica gel is safe and highly effectual to keep food items fresh.

Silica gel can be used to protect special food items such as dried fruits or herbs, spice drawers, Brown sugar that generally tend to clump up along with potatoes, onions and sprouted vegetables are apt to keep the food-related items fresh for many days.

The appropriate method to store food for a lengthy period of time is to use a multi-barrier system. This system safeguards food from natural elements. Silica Gel when doped is traced in a moisture indicator that changes its color from the anhydrous state to a hydrated state.

Silica gel Desiccants are available in different colors such as White, Orange, and Blue. Common indicators are cobalt chloride and methyl. Orange color silica gel also has beads that are used especially in the drying process, foodstuffs, electric appliances, industrial gases and so on. One can use this gel by combining it with other silica gel or you can use the gel independently.

 

Side Effects of Silica Gel Desiccant

Silica gel is a desiccant. Normally we are considering silica gel as an inactive substance. Tiny packets of silica gel are familiar to everyone. When we are purchasing new shoes or laptops, along with the product, inside the boxes we can see small sachets of silica gel. the purpose of this is to absorb excess moisture from the surroundings of the product to keep it fresh.

Desiccant

All the types of desiccants have the amorphous nature, silica gel is also not different. Always we can see the packets of silica it is mentioned as "Do not eat".  As we know it is an inactive chemical, it will not work with any other substances. However, consuming silica gel is not good for our health.

Silica gel can easily enter the respiratory system of Humans because of its amorphous structure. It can make a lot of effects. It can lead to silicosis, bronchitis, or cancer If we are inhaling crystalline silica dust for a long time. The dust might be lodged in the lungs and continuously irritates them, reducing lung capacities.

Researches show inhaling crystalline silica gel dust can reduce the immunity of the employees who are exposed to it for long years. The employees with exposure to crystalline silica shown 10 fold higher than others of lupus and other systemic autoimmune diseases. Crystalline silica particles will not dissolve in the body over clinically relevant periods.

Once the silica gel crystals entered into the lungs, inside macrophages and dendritic cells it can activate the NLRP3 inflammation, and thereby result in the processing of pro-interleukin 1 beta into its mature form. As interleukin-1 Is a highly pro-inflammatory cytokine in the immune system, chronic exposure to silica may thereby account for some of its health hazards.

This effect can create difficulties for people working with sandblasting equipment, products that contain powdered crystalline silica desiccant, and so on. Children, asthmatics of any age, allergy sufferers, and the elderly can be affected in much less time. Amorphous silica, such as fumed silica is not associated with the development of silicosis but may cause irreversible lung damage in some cases.

Silica Gel Desiccant

Silica Gel is having a large surface area. This allows to absorb water easily. Its surface area is around 800 m2 /g. Therefore it is working as a drier. For industrial purposes, to absorb excess moisture from the surrounding of any machines or products silica gel is using as a drying agent.

Silica gel is usually mentioned as "absorbing" wetness, which can be applied once the gel's microscopic structure is unnoticed, as in silica gel packs or different products. But with chemicals, silica gel removes wetness by adsorbing onto the surface of its varied pores instead of by absorption into the majority of the gel.

In chemistry, silica gel is used in chromatographic techniques as a stationary medium. The stationary phase in column chromatography is mostly composed of silica gel. Different types of silica gel differing in particle sizes are used for achieving the desired separation of certain molecular sizes in chemical mixtures. Based on the polarity difference the silica gel is capable of separating the chemical mixtures.

The hydroxyl groups on the surface of silica desiccant can be functionalized to afford specialty silica gels that exhibit unique stationary phase parameters. Silica gels are so-called functionalized. As insoluble reagents and scavengers, silica gels are also used in organic synthesis and purification.

Silica gel is a desiccant. Silica gel is covalently bonded with chelating groups also. These materials have the ability to remove metal ions selectively from aqueous media. Chelating groups can be covalently bound to polyamines that have been grafted onto a silica gel surface producing material of greater mechanical integrity.

Researchers are inclined to use silica gel by considering the above properties of silica gel. In developed countries, a vast expansion of technology has bought sophisticated instruments for purifications of chemical mixtures involving silica gel and desiccants. But developing and poor countries not in a position to afford such expensive instrumentation are adapted to the techniques involving usage of silica gel manually.

Desiccant

Desiccant

The desiccant is one of the major product of Clariant. It is mainly used as a moisture absorber from the surface of the products. By absorbing the moisture, the products will stay long. So keeping the products safe and stay long, placing desiccant packets with them in the containers. 

Clariant introduces a new cargo desiccant it is named Container Dri. Which is designed to protect cargo from moisture damage. This enables the logistics industry to protect their goods for effective transport around the world.

It offers the best performance in the industry with a moisture absorber capacity up to 300% of its weight and through an advanced formula, that traps it as a thick, no-spill gel. It is DMF free and is globally used to protect agricultural and industrial exports.

Clariant's Container Dri offers a broad line of cargo desiccants that offer versatile protection against damaging humidity and moisture during intermodal transport. Available in baggage, poles, and strips, these industry-leading merchandises absorb up to a few times their weight in wetness and lure it as a thick gel that will not spill or drip. 

What is a Container Rain? and How does it happen?

1. Humidity

When the products are loading in humid environments.

Products with high moisture content.

Packaging and dunnage with high moisture content.

These are the chances for humidity.

2. Temperature

The temperature may drop when shipped to colder climates.

Drop due to a cold front.

Drop with day to night temperature fluctuations.

The temperature drop is one of the main reasons for container rain.

3. Condensation

Condensation results when the temperature drops below DEW POINT

When moisture condenses from vapor to liquid.

When colder air can no longer hold moisture.

When an explicit temperature is reached and condensation starts to create inflicting INSTRUMENTALITY RAIN.

So to protect from the loss due to container rain, cargo desiccant Container Dri is introduced. It is a good moisture absorbing solution in the industrial fields. It is really helpful for long-distance shipping and transport.