Gematein

Hematein is an oxidized form of hematoxylin in the form of reddish brown crystals, which determine its coloring property. Hematein is an important component of many dyes used in industry and medicine.

Hematein was discovered in 1894 by German chemist Karl Koch. It was named after the Greek words “hemo”, which means blood, and “theine”, which means paint. Hematein is used as a dye for dyeing fabrics, paper, plastics and other materials.

In industry, hematein is used for coloring leather, textiles, paper and other materials, as well as for coloring metals and plastics. In medicine, it is used to stain blood and other biological fluids, and in histological preparations to stain cells and tissues.

There are several methods for obtaining hematein. One of them is the oxidation of hematein with atmospheric oxygen at room temperature. Another method is to treat the heme base (hematoidin) with atmospheric oxygen in the presence of an alkali. Both methods result in the formation of heme oxide, which is then oxidized upon heating to hematein.

One of the advantages of hematein is its resistance to light and heat. This allows it to be used for coloring materials that must be resistant to light and temperature.

However, like any other dye, hematein can have negative effects on human health. Therefore, when using hematein, precautions must be taken to avoid contact with skin and eyes.

In addition, the use of hematein may lead to environmental pollution. Therefore, it is necessary to take measures to reduce the release of this dye into the environment.

Thus, hematein remains an important dye in various industrial and medical fields.



Hematein is the oxide or oxidized form of hematoxylin. It can be obtained from hematoxyl and potassium chlorate. This red-brown opalescent mass is often used as a natural dye in the production of paper, textiles and ceramics.

Hematein is a natural, natural substance and is produced from plants of the cruciferous family, such as cruciferous rapeseed and cornflower. These plants contain hemateins, which can be extracted and purified to be used as a natural dye source for items requiring a blue or green color. Although hematein contains many dyes, it is essentially a low molecular weight compound. And this is why hematein dyes are not intended for large-scale production. Instead, gel blue dye for the traditional textile industry comes in the form of a hydrochloric acid salt-soluble yellow, darkening blue color.

What is hematea? This compound, sometimes called hematexa or hematekin, is an atomic fiber. It contains several molecules of heme A (derived from vitamin B2). When exposed to alkali, the paint turns blue-green, reddish, red, brown, chestnut brown and blue-violet. They were obtained naturally by hydrolysis from plants such as cabbage, rapeseed and beets, where the hemarin content leads to