Physical stability：The solution is easily to crystallize at 5 ℃ and below. Chemical stability: Relatively stable. IDS can maintain good stability in strong acidic and alkaline media. The stability in alkaline environments is superior to that in acidic environments. It has a good stability under neutral conditions.

In a 100 ℃ environment: Under the condition of pH<1.5, after 20 hours, the stability is not less than 40%. Under the condition of pH>4 (including pH=14), after 20 hours, the stability is not less than 80%. In environments below 50 ℃, the stability of IDS does not vary significantly with pH, and after 24 weeks, the stability is not less than 90%.

Tetrasodium iminosuccinate(IDS) is a new green and environmentally friendly alkaline complexing agent. The chelating agent, along with EDTA, DTPA, and NTA, is an amino polycarboxylic acid chelating agent which has the characteristics of phosphorus free, non-toxic, pollution-free, and easily biodegradable.

It is a colorless to light yellow transparent liquid at room temperature, and may crystallize if left below 5 ℃ for a long time. The anions of IDS can form coordination geometries with metal cations, and have strong chelating forces on calcium, magnesium, zinc, and other transition metal ions. Especially, the chelating ability of heavy metal elements such as copper, iron, manganese, nickel exceeds that of ordinary chelating agents such as EDTA. The effect is better when used in combination with other chelating dispersants. It can be used as a cleaning agent for alkaline earth metals and heavy metal ions. Widely used in household detergents, industrial cleaning agents, cleaning agents in the photography industry, printing and dyeing auxiliaries, dyeing and finishing processes, textile industry, papermaking industry, photosensitive materials, ceramic industry, electroplating industry, construction industry, and extraction of heavy metal pollutants in soil. In the traditional industrial circulating water field, it is also used as a scale inhibitor and water softener.

Application:

First, as a chelating agent for pesticides and fertilizers.

IDS, as a chelating agent, is widely used in fertilizers and pesticides. Its stability and bioavailability are much higher than those of citric acid, amino acid, and humic acid complexes, making it an effective way to supplement trace elements in crop growth. it can be safe to use, improve crop physiological function and yield, making it an ideal choice for increasing agricultural product yield and improving quality.

IDS is a newly emerging amino acid chelating agent, which is a substitute product for amino polycarboxylic acid chelating agents such as EDTA, DTPA, and NTA. It is environmentally friendly and efficient, easily soluble in water, easy to absorb, and has no antagonistic effect.

Second, hard surface cleaning.

IDS is a component with excellent performance used in metal cutting, pipeline network cleaning, and glass cleaning. When used together with surfactants, it has better results and can significantly enhance the product's cleaning ability, especially for rust and sulfide iron. It can be widely used in various industrial cleaning agents, especially recommended for natural gas pipeline cleaning. 

Third, detergents and daily cleaning agents.

When IDS is applied to detergents and daily cleaning agents, it can enhance the decontamination ability of the product. Its excellent complexing ability increases the solubility of calcium and magnesium ions, allowing the surfactant to function normally. In addition, its environmental friendliness also increases the safety of daily washing products. Used in soaping agents, it has the effect of increasing the brightness of colors.

Fourth, make-up.

IDS reduces the catalytic effect of heavy metal ions on the oxidation of unsaturated fatty acids in cosmetics by forming stable water-soluble complex molecules with heavy metal ions. Its biodegradability can provide safer product quality and reduce the risk of adverse reactions on the skin. 

Fifth, making paper and printing and dyeing industries.

IDS can be used in various hydrogen peroxide bleaching processes, especially in high-temperature alkaline environments, with excellent performance. It can chelate with catalysts such as copper ions and iron ions that catalyze the decomposition of bleaching agents. In addition, the whiteness of the obtained product is much better than that of using traditional oxidant stabilizers. When mixed with sodium silicate, it can reduce the formation of silica scale. 

Sixth, Corrosion Protection and Preservation of Light Chemical Products.

Light chemical products generally have deterioration problems such as oxidation, aging, solidification, discoloration, and reduced strength during storage, all of which are related to the catalytic effect of metal ions. IDS has a strong ability to chelate high valent metal ions, which can effectively reduce the catalytic activity of metal ions and extend the shelf life of products. Moreover, when used in combination with fungicides, it can also improve the inhibitory effect on certain microorganisms and prevent product spoilage.