Best Ethylenediaminetetraacetic Acid [EDTA] CAS 60-00-4

EDTA and its salts are mainly used in photographic chemicals, water treatment agents, chemical (cystine) refining, detergents, textile auxiliaries, leather chemicals, paper chemicals, medicines, synthetic rubber, micro-fertilizer production and other fields. Users are very scattered and demand growth is relatively slow.

1. Chemical (cystine) refining
   EDTA can be used for cystine refining and removal of metal impurities.
2. Photographic industry
   EDTA and its salts are mainly used in the formulation of bleaching solution and fixing solution for film washing in the photographic industry. The varieties used are mainly EDTA sodium iron salt and EDTA iron ammonium salt.
3. Water treatment agent
   EDTA is mainly used as a boiler scale inhibitor, corrosion inhibitor and water quality stabilizer for circulating cooling water systems in the water treatment industry. Its products are mainly sold and used as compound water treatment agents. In addition, it is used to clean ponds in aquaculture farms in coastal areas.
4. Textile printing and dyeing auxiliaries
   EDTA is mainly used in the textile dyeing and finishing industry for the dyeing and finishing pretreatment, bleaching and dyeing processes of textiles and fibers, as a water softener and stabilizer for textile dyeing and finishing process water, or in the dyeing and printing process, since the fibers often contain various metals that affect the color and brightness of the dyed fabric, if EDTA is added, it can completely offset the metal interference. In addition, EDTA can be used as a terminator in the dry production of acrylic fiber.
5. Detergents
   Adding a small amount of EDTA to synthetic detergents can enhance the detergent’s cleaning power, foaming power, penetration power and emulsification power. EDTA is also used in solid soaps and liquid soaps.
6. Synthetic rubber
   The synthetic rubber industry mainly uses EDTA tetrasodium salt, which is mainly used as an activator of initiator in the production of styrene-butadiene rubber by low-temperature emulsion polymerization. Its function is to promote the redox reaction of the initiator.
7. Leather chemicals
   EDTA is used in leather processing for saponification, aging, deashing, tanning, dyeing and other processes. The varieties used include EDTA and its salt products.
8. Agriculture
   EDTA is currently mainly used in agriculture to produce micro-fertilizers containing elements such as iron, zinc, manganese, and copper, or to prepare plant growth promoters (such as Ye Mian Bao, Peng Shi Bao, etc.).
9. Food Industry
   The food industry is actively trying to use EDTA and its salts, such as for deodorization, detoxification, and anti-oxidation of aquatic products, as well as citrus capsule decapsulation agent in the production of canned citrus fruits.
10. Medicine
    In the pharmaceutical industry, tetrasodium EDTA is mainly used as a chelating agent for drugs to maintain the stability of drug quality. The main drugs are: trimethoprim, piperazine phosphate, naproxen, meglumine, dichlorvos, albendazole, vitamin VB6, etc., and ethyleneimine is synthesized with formamide to produce drugs for the treatment of psoriasis.
11. Pulp and papermaking
    EDTA is used in pulp and papermaking as a water softener in the pulping process and a stabilizer in the bleaching process.
12. Others
    Tetrasodium EDTA is used as a stabilizer for cosmetics in the production of cosmetics. EDTA is a commonly used analytical reagent in chemical analysis, used for complexometric titration, and used as a masking agent for separation and determination. In the electroplating industry, EDTA is mainly used as a zinc plating brightener. Because EDTA has good complexing ability with zinc, it is used in zinc plating solutions to make the coating have good coverage and quality; it is also used in cyanide-free electroplating and chemical plating.