SHANDONG ZHISHANG CHEMICAL CO.LTD.

Azo Rubine CAS 3567-69-9

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  • Appearance: Red brown powder
  • Assay: 99. 0%min
  • Stock: In stock
  • Sample: Available
  • Zhishang Chemical: Azo Rubine Supplement

Basic Info of Azo Rubine

What is Azo Rubine?

Nitrogen red or azorubine is an azo dye, which is produced as disodium salt through chemical synthesis. In its dry state, it is red to maroon. It is mainly used in food for heat treatment after fermentation. E code is E122.

In the United States, this color was listed as FD & C Red No. 10 in 1939 for topical drugs and cosmetics. It was delisted in 1963 because no one was interested in the research needed to support the establishment of security. It is not used in American food.

In the EU, azorubine, known as E-number E122, is authorized for use in certain foods and beverages, such as cheese, dried fruits and some alcoholic beverages, and is allowed to be used as an excipient of drugs.

There is no provision on azo red base in the food code.

Azo Rubine Uses

  1. Edible red coloring.
  2. Azo rubine and acid lake blue A make up acid medium dark blue AGLO. Its heavy metal salts can be used as organic pigments.
  3. Azo rubine is mainly used for the dyeing of wool, silk and nylon and the direct printing of fabrics. It is mostly used for wool fabrics. It is typically dyed with acid eco-friendly B or acid lake blue A. It can be dyed with chrome to get navy blue color. If a small amount of acid violet 4BNS is added to adjust the color, the color will be more vivid, which is the main use of azo rubine. Due to its susceptibility to metals, it is not suitable for dyeing red.
  4. Azo rubine is additionally utilized for the coloring of natural leather, paper, anodized aluminum, ink, timber items, biological items, cosmetics, and so on, in addition to the coloring of medication as well as food, and also can likewise be made into lake pigments.
  5. Azo rubine is a kind of red dye used for food after fermentation.

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Production Method of Azo Rubine

Reference

  1. Carmoisine – PubChem
  2. WHO, 1983. Evaluation of certain food additives and contaminants. Linked from WHO listing here
  3. Klaus Hunger; Peter Mischke; Wolfgang Rieper; et al. (2005). “Azo Dyes”. Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH.

Quality Control of Azo Rubine

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