Citric Acid Anhydrous is white colored free-flowing powder having molar mass of 192.123 g/mol with water soluble nature. It finds application as a preservative & antioxidant in food industry with E number E330. This chemical has molecular formula C6H8O7 with melting point of 156 degrees Celsius and density 1.665 g/cm3. It serves as acidulant in creams, liquids, & gels that are formulated in pharmaceutical and cosmetic industries. This acid is also known to be an important ingredient in Benedicts reagent. Citric Acid Anhydrous also possesses buffer properties required for increasing solubility of brown heroin.