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Improvements in the preparation of a tanning agent for the chrome tannage or dyeing of leather
Improvements in the preparation of a tanning agent for the chrome tannage or dyeing of leather
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机译:改进鞣革或皮革染色用鞣剂的制备
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摘要
Basic chloride and sulphate of chromium are prepared by the reduction of bichromates in hydrochloric or sulphuric acid solutions, by means of tea-dust. The products are intended for use in the chrome tanning or dyeing of leather.
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