Molecular formula :
nature : HCl hydrogen called perchlorate. The aqueous solution of hydrogen chloride. Pure colorless. Because of the general contain impurities and yellow. Containing 20% hydrogen chloride stark contrast to the boiling point. Commodities concentrated hydrochloric acid containing 37% -38% hydrogen chloride, density 1.19. It is a strong acid. With many metal role. It is one of the important industrial raw materials. Widely used in the chemical industry, petroleum industry, metallurgical industry, printing and dyeing industries. Hydrogen chloride absorption by the water derived. See hydrogen chloride.
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