Factors affecting the pH value of swimming pool water: 1. Disinfectant: such as swimming pools in the use of pool disinfectant containing Trichloroisocyanuric acid components, its as long as the cast will only make the water pH value is low, because the aqueous solution of trichloroisocyanuric acid is acidic, so long-term use of the water, the pH value will fall; such as swimming pools in the use of Calcium hypochlorite, bleach and other disinfectants, long-term use, will make the water pH value is high. 2. rain: rain falling into the pool in rainy weather will make the ph value drop (outdoor pool), most of the rain in the south is acid rain. 3. water quality: the pH value of water in the south and the north will be different, or too high or low on the pool water acidity and alkalinity have a certain impact. 4. Swimmers: saliva and sweat of swimmers in the pool. 5. Organic growth, algae, moss and other reproduction will also affect the pool water pH. Swimming pool pH value is too low means acidity, swimming pool PH value of acidity and alkalinity directly affect the disinfection effect. Only when the pH value of the water to reach the standard on human skin, eyes will not produce irritation, more comfortable and safe, but also allows the effect of disinfectants to achieve the ideal state and can make the residual chlorine value in the water more persistent. At this time, the need for Water Treatment agents to adjust the acid-base balance of the pool, we can use sodium carbonate. Sodium carbonate, also known as soda ash, is a PH+ type pool pH regulator. If the pH value is lower than the standard, you can use sodium carbonate PH regulator to raise the pH value of the pool water.
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(1)Intermediates:It is a very important type of fine chemical products, the essence of a class of "semi-finished products", is the production of some products in the middle of the product, such as to produce a product, can be produced from the intermediates, cost savings, from the synthesis of pharmaceuticals, pesticides, paints, dyes and fragrances are widely used. In the pharmaceutical field, intermediates are an important link in the pharmaceutical industry chain, used in the process of drug synthesis of some chemical raw materials or chemical products.
(2)Polymers:Polymerisation is the process by which the repeating units that make up a polymer are linked together by covalent bonds.Polymers can exist in different states depending on the phase, conformation and arrangement of their molecular chains.Polymers usually exist in a semi-crystalline form in which amorphous and crystalline phases coexist.