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Deep ocean water (DOW) is the name for cold, salty water found deep below the surface of Earth's oceans. Ocean water differs in temperature and salinity. Warm surface water is generally saltier than the cooler deep or polar waters; in polar regions, the upper layers of ocean water are cold and fresh. Deep ocean water makes up about 90% of the volume of the oceans. Deep ocean water has a very uniform temperature, around 0-3 °C, and a salinity of about 3.5% or as oceanographers state as 35 ppt (parts per thousand).
A deep-sea water mineral powder and a preparation method and application thereof
This invention belongs to the field of cosmetic technology, specifically disclosing a deep-sea water mineral powder, its preparation method, and its application. The preparation method includes the following steps: vacuum evaporation and concentration of deep-sea water to obtain a concentrated solution; adding NaOH solution dropwise while stirring to adjust the pH, continuing stirring, centrifuging, discarding the precipitate, and obtaining the reactant; adjusting the pH to acidic, stirring at a certain speed, adding tannic acid solution dropwise, gradient heating, and allowing to stand for aging to obtain the reaction mixture; centrifuging to separate the precipitate, washing, and obtaining a wet filter cake; vacuum drying, pulverizing, and sieving to obtain the deep-sea water mineral powder. This deep-sea water mineral powder exhibits excellent water-holding capacity and oil-controlling properties, as well as excellent antioxidant activity, showing promising application prospects as a cosmetic raw material.
Owner:WEST LAKE SYNTHETIC BIOTECHNOLOGY (HANGZHOU) CO LTD