Yuncheng Yanchi black mud

Yuncheng Yanchi Black Mud Yuncheng Yanchi, Yancheng District, Yuncheng City, Shanxi Province, starts from Dongguo Town in the east, along the northern slope of Zhongtiao Mountain, passes through Xiyao Town and Zhang Cun at the bottom of Jiezhou Town in the west, starts from Anyi Town in the north, along the southern part of the city, passes through Nancheng Office, Xicheng Office and Longju Town in the west, and reaches Qiaojiazhuang, Chepan Town in the west, with a total area of 154.6 square kilometers. Salt Transportation Administration Request [2012] No.20 Nanfeng Chemical Industry Group Co., Ltd. Enterprise Standard: Q/NFJ 03-063-2012 Yuncheng Salt Pond Black Mud Quality and Technical Requirements 1. Requirements for raw materials and accessories 1. Raw materials: deep naive black mud in salt ponds within the production area. 2. Accessories: antioxidants and skin care agents meet the requirements of national cosmetics related laws and regulations. Second, the process of mud collection → drying → crushing → sterilization → preparation → inspection → packaging → finished products. Third, the process requirements 1. Drying: natural drying, moisture (wt%)≤3%. 2. Crushing: the black mud is crushed to a particle size below 14μm and above 1000 meshes by a shunt crusher. 3. Sterilization: the black mud dry powder is sterilized by irradiation to meet the requirements of cosmetic hygiene standards. Four, quality characteristics 1. Sensory characteristics: the appearance is black and gray uniform paste, with a natural pleasant fragrance. 2. Physical and chemical indicators: the physical and chemical indicators of the project include chloride content (calculated by NaCl),% ≥3.0 solid content ≥55 pH value (25℃) (1: 10 suspension) 6.0-8.5 fineness, 125μm(120 mesh) sieve residue,% ≤5 stable heat resistance (40 1) for 24 hours, and after returning to room temperature, it will be kept with. There is no obvious difference after returning to room temperature and before the experiment. 3. Safety and other quality and technical requirements: product safety and other quality and technical requirements must comply with relevant national regulations. Yuncheng Yanchi black mud is a geographical indication protection product.
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