A synthetic substance in the form of silicon dioxide (Silicon, DioxideSiO2) with a surface area is approximately 800 square meters per 1 grams of moisture absorption of the silica gel is a physical characteristics (Physical Adsorption). The moisture retention at the inner cavity structure, silica gel was used extensively.Medicine and food. Usually, silica gel, can absorb moisture between 24-40% weight itself and the most effective at lower temperature 25 C. If the temperature higher, efficiency of moisture absorption is down to me.(Desorption) out of myself as well. By this, the use of silica gel with Dick relief, such as Thailand. So be careful forward to changes of temperature of packaging products, the use of silica gel.International cargo fluctuating, or the difference between the temperature. And the relative humidity of the destination country. Surely the opportunity and risk of absorption and desorption of moisture of silica gel forward
.
.Silica gel in use are generally 2 type is small pellet clear 2-5 mm and tablets in blue (Indicating Silica Gel) size equal. . the properties of silica gel and 2 this species difference has to fill Cobalt Chloride down to make มีสีน้ำเงิน.Gel blue gradually changed to pink. When relative humidity around, higher than 40% silica gel. This type is useful. In the observation, easily that the goods risk moisture much profit. If silica gel.Or change colors, but shows that moisture around is silica gel suck it and lower relative humidity is low. On the contrary, if the color of the silica. The gel. Turn pink, shows that moisture around it.Gel will deeply and control at low level have
.
.However, the use of silica gel type blue be cautious use. Because the agencies involved in the global healthcare, such as European and some Commission International Agent for Research on Cancer. The cobalt chloride is in.(carcinogen) if inhaled. And may affect the environment in the long run.
การแปล กรุณารอสักครู่..
