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US4486350A Process for the preparation of sulphur dyestuffs of the phthalocyanine series 失效
制备酞菁系列硫化染料的方法

Process for the preparation of sulphur dyestuffs of the phthalocyanine
series
摘要:
Preparation of phthalocyanine sulphur dyestuffs is improved by reducing phthalocyaninesulphochlorides in the presence of hydriodic acid and a non-free metal reducing agent which converts iodine into hydriodic acid.
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