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Because the shopping mall shampoo activities, the price is very suitable, so I bought a few bottles, but it has been used for a long time or not used up, recently found that the shampoo is about to expire soon, throwing is not willing to throw,...
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Usually, ethylene is a colorless, slightly odorous gas with a density of 1.256 g/L, which is slightly less dense than air, hardly soluble in water, and easily soluble in organic solvents such as carbon tetrachloride. Ethylene is present in certain...
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1 Overview Titanium has good corrosion resistance, and its corrosion resistance is superior to that of stainless steel in oxidizing, neutral and chloride ion media, sometimes even more than 10 times that of 1Cr18Ni9Ti stainless steel. Successful...
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In just one week, the price of vinyl acetate, the basic chemical raw material, rose from 6,000 yuan per ton to more than 8,000 yuan, up nearly 20%, and the price of vinyl acetate was always low. In the view of some chemical manufacturers, the recent...