Since silica gel has particles of different sizes, it is classified into different types. Among the dimensions used in this product, we can mention the sizes 1 to 3 and 3 to 5 mm. Among other salient points of this product, we can mention the presence of an indicator in it. Among the different types of this material, the following can be mentioned:
This type of product does not contain any indicator and will be produced in a colorless form. Among the dimensions used for this purpose, two sizes of 1 to 3 and 3 to 5 mm can be mentioned. This product will be produced in 25 kg packaging and sachets. Another use of this product is its use in hydrocarbon recovery, dehydration of compressed air, liquids and gas. In order to detect moisture, 10% colorless type is combined with 5% orange and blue silica gel.
Blue type contains cobalt chloride, which will act as an indicator to detect the amount of moisture absorption. After this silica gel dries and regenerates, its color will return to blue.
Among other types of silica gel, we can refer to its orange model, in which methyl violet is used as an indicator to determine the amount of moisture absorption. In this product, after absorbing moisture, its color will change to green. Due to its odorless, harmless and non-toxic nature, this product can be a suitable alternative to blue type.
This type is used in the gas refinery, which is used for hydrocarbon separation and gas recovery in the processing and refining process. In terms of the structure of this product, it has good and high physical characteristics compared to other silica gels for strength and water absorption.
WS type is also used for gas absorption in gas processing and refining. This type of product also has high absorption and is used as a layer to protect chemical compounds and other absorbents and catalysts.
Silica gel is not toxic and will react with other substances such as oxygen difluoride, acids, hydrogen fluoride and strong oxidizing bases. The dust from this product is harmful to the eyes, skin and respiratory tract and will cause irritations such as flickering, tears and slight pain. During the use of this product, all precautions should be considered and its toxicity will be low according to the proportion of silica in case of ingestion. If this product is inhaled, move to the open air.
Breathing this product for a long time against dust will cause a disease called silicuris, which is caused by silica particles in the dust. Also, the non-transparent dust of this product will not cause illness. In order to avoid skin problems, you should use appropriate work clothes and gloves.
Working while eating, drinking and smoking should be avoided and glasses should be used to avoid contact with the eyes. If any of the above cases are not resolved, immediately refer to doctor.
Silica gel will be supplied in the form of 25 kg bags and sachets and in different sizes and weights. Since this product has a high absorption power, it should be stored in environments free from any kind of moisture.