You might find small silica balls inside a woven pack of cotton which is present in the corner of an electronic item box. For various reasons it will be highlighted with the warning sign of 'Do not eat.' It is said that silica crystals can cause irritation to the human body and cause various side effects. It is advised to keep them away from the reach of children to avoid consumption. The main properties of silica gel are basically of porous sand. Feature of silica gel contain absorption of moisture up to 40% of its weight. Such absorbing capacities can ensure electronic goods to be free from moisture and water. You can reuse silica gel packets once the moisture has dried off; reheating them to 300 degrees makes them reusable. There are various websites on the internet through which you can purchase silica gel packets. Purchasing them in bulk quantities will help in yielding high discount. Industrial requirements are more so such discounts are usually given on bulk orders. Price comparison can be done between two or more websites that are listed on the internet. Silica gel does not have taste, it is odorless. Color variation takes place when the particles contain moisture. Silica gel is available in solid form though it has the name gel. It is one of the moisture absorbing agents that can be used to keep electronic goods in tip top condition. Consumption of silica gel packets requires immediate medical attention or there are chances of death taking place.