CAS:1758-73-2 | Formamidinesulfinic Acid

Products Description

Thiourea Dioxide, also known as Aminoiminomethanesulphinic acid, Formamidinesulphinic acid , etc., has a CAS number of 1758 - 73 - 2, an EINECS number of 217 - 157 - 8. Its molecular formula is CH₄N₂O₂S and its molecular weight is 108.12.
In terms of appearance, Thiourea Dioxide presents as white crystalline particles, being non - toxic and odorless. Its melting point is 126°C, at which it decomposes. Its relative density is approximately 1.68. It is soluble in water. At 20°C, its solubility in water is around 26.7g/L. In alkaline solutions, the solubility increases as the alkali concentration rises, yet it is insoluble in organic solvents.

Basic Info

Safety Information

Hazardous goods mark: Xn (hazardous substance)
Hazard category code: R22 (harmful if swallowed), R36/37/38 (irritating to eyes, respiratory tract and skin)
Hazardous goods transport number: UN3341

Uses

Fiber industry

Bleaching: Organic Synthetic Raw Formamidinesulfinic Acid has good bleaching effect on natural fibers such as wool, silk, and cotton, especially in a weakly alkaline environment. It does not damage the fibers and the bleaching wastewater is easy to handle.

Dyeing: It is used for dyeing with disperse and sulphur dyes. The dosage is only 1/10 of that of bisulfite, but it should be noted that the type and concentration of the dye will affect the color tone.

Reduction cleaning: It is effective for combined fabrics dyed with disperse dyes. It has high stability in an alkaline reduction bath and the dosage is 1/4 of that of bisulfite.

Discharge printing: Due to its high reduction potential and strong stability, it is suitable for discharge printing of all materials.

Shrinkage-proofing: When shrinkage-proofing wool with polyamide, it can promote the fiber's absorption of chemical agents.
Pulp industry: Suitable for reduction bleaching of high-step pulp such as GP, RGP, TMP, CTMP, etc. It is suitable in a neutral to weakly alkaline environment. Mixing with DIP bleaching can improve the whiteness of pulp. It can also be used for chemical pulp bleaching and DIP deinking treatment.
Synthetic fiber: When spinning acrylonitrile fiber, it can be placed in the spinning bath together with thiourea dioxide or impregnated after spinning. After drying, high-whiteness and high-quality products can be obtained, and dyeing properties can also be improved.

Company Profile

Gnee Chem is an enterprise specialising in the research, development, production and sales of phytochemicals and fine chemicals.Our factory was established in 2016 and is located in Henan Province, covering an area of 3,600 square metres. We have a professional, well-equipped and high-quality R&D team with more than 10 years of R&D experience. Our products are widely exported to many countries, such as the United States, Russia, Canada, Australia, Europe, etc., and we provide customers with fast shipping services. We hope to establish long-term and mutually beneficial cooperation with more friends in the future, and provide the best products and services for our customers.

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