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01-15

Method for directly producing water-soluble nigrosine

The present invention relates to the preparation of azine acid dyes, in particular to a method for directly producing water-soluble nigrosine.

01-15

Stain -- preparation of drug reagents commonly used in microbiological experiments

Formula one Qi (Ziehl) Carbolic acid magenta dye solution Take 5g of carbolic acid and dissolve it in 95 ml of distilled water. Take 0.3g of basic fuchsin in liquid B, grind it in a mortar, gradually add 10 ml of 95% alcohol, and continue to submerge to dissolve it.

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Fuxin Shinelion Biotechnology Engineering Co., Ltd. is a technology-oriented production enterprise dedicated to environmental protection and comprehensive utilization, as well as the development of innovative products. Its main products include aniline black series (Acid black 2, Solvent Black 5, Solvent Black 7), and other dyestuff.

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