In recent years, the research and development of the use of humic acid in industry at home and abroad has been continuously developing, and there are dozens of known uses in the research data. This article briefly introduces two:
Uses of humic acid: making dyes with humic acid
China has explored the use of humic acid to make dyes. Shangyu Chemical Plant in Zhejiang Province once built a production device to produce sulfurized dark brown dyes with peat humic acid, which was used for dyeing wick velvet for several years. Using nitrohumic acid to trial-produce sulfur dyes, it was found that only the same material ratio and changing the reaction temperature of different materials can produce brown sulfur dyes of different shades. They believe that according to the structure of humic acid, the benzene ring of its molecule contains phenolic hydroxyl groups, and the humic acid molecule can also be given amino groups, which shows that it has the basic conditions for making azo dyes. They speculate that humic acid with more phenolic hydroxyl groups will be beneficial for making azo dyes.
Uses of humic acid: humic acid is used to make cosmetics
The use of humic acid in the manufacture of cosmetics is based on the medical application of humic acid. He Yaqiang and others used fulvic acid as an additive to make the “Yaerkang” therapeutic skin cream, which was found to have anti-inflammatory, antipruritic, skin care, and moisturizing effects through clinical trials.