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precautions. Hydrochloric acid has been an important and frequently-used chemical from early history, and was discovered by the
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liquid, hydrochloric acid should be handled only with appropriate
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18:Knowledge:Today's featured article
62:, facilitating wide use. As a highly
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84:. It was used throughout the
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58:) gas. It is a
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86:Middle Ages
60:strong acid
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172:By email
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139:more...
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80:around
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82:800
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