Sodium hydroxide, also known as lye and caustic soda & chemical formula is NaOH. Sodium hydroxide is a highly caustic base and alkali. Pure sodium hydroxide is a colorless crystalline solid. It is highly soluble in water. NaOH is insoluble in ether and other non-polar solvents. Sodium hydroxide is a co-product of chlorine production.
Ascorbic acid (C6H8O6) is a naturally occurring organic compound with antioxident properties. It is six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is a Vitamin C. The chemical classification of ascorbic acid is Ascorbic Acid. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.
Silica gel is a granuler, viterous, porous form of silicon dioxide made synthetically from sodium silicate. Silica gel contains a nano-porous silica micro-structure, suspended inside a liquid. It looks like irregular crystal like beads. Silica gel packets are used to absorb moisture and keep things dry.