What are the different uses of pyrogenic silica oxide?

pyrogenic silica oxide is a fine powder created by exposing silicone tetrachloride or quartz sand of the pyrolysis process. This creates a powder that shows a low overall density with high surface values ​​and good thixotropic properties. Pyrogenic silica dioxide is largely used as a strengthening filler and thickening agent in a wide range of products such as food, colors and adhesives. It also serves as drying and is often added to cosmetics and toothpaste due to its appropriate diffuse and mild abrasive properties. Pyrogenic dioxide of silica does not have carcinogenic properties, but represents an inhalation risk due to its extremely fine structure.

Silicone oxide is an extremely hard silicone oxide oxide naturally in quartz sand. When exposing the pyrolysis process, a fine powder composed of microscopic grains of fused silica oxide consists of a high surface to volume density. The pyrolysis process involves exposure to the raw of silica on a veryYSOCE temperatures, usually Voblast 5 400 ° F (3,000 ° C), in the absence of oxygen. The process creates a very fine powder with non -porous particles between 5 and 50 nm. The powder also has a very high surface and volume -weight ratio with values ​​in the range of 50 to 600 m ^{2 /g.}

Extremely fine and non -porous nature of pyrogenic silica or porous silica oxide, as is also known, makes it an ideal thickening and bulky agent with excellent thixotropic properties. Thixotropic refers to substances characteristic of reducing viscosity or thickness with prolonged mixing or tremor. As a result, the desperate silica is an ideal color filling, causing them to thin and regain the viscosity during the application when they stay from preventing drops and running. This characteristic is also beneficial in formulating printing inks that allow high resolution levels during application. FuSilicon oxide is also a popular filler and reinforcement in many cannons, darkness and adhesives.

When adding to foods such as milk cocktails, pyrogenic dioxide silica lends the body without solidification during preparation or transport. Like silicagel, pyrogenic silica dioxide also has good quality of drying up. The powder is often added to cosmetics due to its light scattering and as a slight abrasive in the toothpaste. Silicon pyrogenic oxide does not have carcinogenic properties, but due to its extremely fine structure, it represents an inhalation risk when suspended in the air. If inhaled in excessive quantities, it can cause lung irritation with associated long -term, irreversible damage.