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However, material silica gel removes moisture by adsorption onto the surface of its numerous pores rather than by absorption into the bulk of the gel. Silica gel is able to adsorb up to 37% of its own weight in moisture in high-humidity environments. [7] This moisture can be released upon heating at about 120 °C (248 °F) [8] [7] for 1–2 ...
Several constructions for meat absorbent pads have been developed. [5] [6] The absorbent pads are typically made from materials such as cellulose, silica gel, sorbent nonwoven fabric, superabsorbent polymers, or other absorptive materials that can hold a significant amount of liquid relative to their size.
Silica gel is widely used to buffer relative humidity inside museum display cases, packaged clothing, electronics and anything that might be damaged by condensation, or in the example of museum display cases, being too low an RH (relative humidity) as the silica will help protect the objects displayed from mechanical damage due to shrinking and ...
The lowest-density silica nanofoam weighs 1,000 g/m 3, [59] which is the evacuated version of the record-aerogel of 1,900 g/m 3. [60] The density of air is 1,200 g/m 3 (at 20 °C and 1 atm). [61] The silica solidifies into three-dimensional, intertwined clusters that make up only 3% of the volume. Conduction through the solid is therefore very low.
Sodium silicate and other silicates are the primary components in "instant" wrinkle remover creams, which temporarily tighten the skin to minimize the appearance of wrinkles and under-eye bags. These creams, when applied as a thin film and allowed to dry for a few minutes, can present dramatic results.
Canisters are commonly filled with silica gel and other molecular sieves as desiccants in drug containers to keep contents dry Silica gel in a sachet or porous packet. A desiccant is a hygroscopic substance that is used to induce or sustain a state of dryness (desiccation) in its vicinity; it is the opposite of a humectant.