The number is the primary CAS registry number for fumed silica (also known as pyrogenic silica), a versatile synthetic material used extensively across modern industry. The Science of Fumed Silica
: It is generally non-reactive, making it a safe additive for a variety of sensitive products. Industrial Applications 112945
: It serves as an anti-caking agent to keep powders free-flowing and is used as an excipient in tablet manufacturing to ensure consistent dosage. Safety and Handling The number is the primary CAS registry number
While fumed silica is not classified as a carcinogen, it is an due to its fine particle size. Prolonged or high-level exposure can irritate the respiratory system and eyes. Consequently, safety protocols typically require the use of protective masks and ventilation when handling the dry powder in industrial settings. CAS 112945-52-5: Silica, amorphous, fumed, cryst.-free Safety and Handling While fumed silica is not
Because of its unique ability to thicken and reinforce, fumed silica is used in a vast array of consumer and industrial goods:
: It is used in skincare and makeup for its light-diffusing properties and to improve texture.
: It provides structural reinforcement and controls flow during application.