Thioure. Dioxide 99% Active Free Sample CAS No. 1758-73-2

• CAS No.: 1758-73-2
• Formula: CH4n2o2s
• EINECS: 217-157-8
• Type: Synthesis Material Intermediates
• Appearance: Powder
• Quality: Industrial
• Model NO.: 1758-73-2
• Colour: White
• Transport Package: Drum
• Specification: 25KG/Drum
• Trademark: Jianqi
• Origin: Shanghai

Product Description

Basic Info.

CAS No.:	1758-73-2
Formula:	CH4n2o2s
EINECS:	217-157-8
Type:	Pharmaceutical Intermediates
Appearance:	Powder
Quality:	Industrial

 

Customization:	Available

Model NO.	Thioure. Dioxide	Colour	White
Transport Package	Drum	Refractive Index	1.6550 (Estimate)
Transport Package	100g; 1kg; 25g	Shelf Life	24 Months

Product Description

Product name	Thioure a dioxide
Cas no.	1758-73-2
Density	1.68
Melting point	124-127 °C (dec.)(lit.)
Boiling point	355.3±25.0 °C(Predicted)

Product Specification
 

White crystalline powder

Convenient reagent for the reduction of ketones to secondary alcohols.
Thioure a dioxide is an effective bleach when used alone or when used after hydro gen peroxide in a full bleaching process (Duffield, 1986; Cegarra et al, 1988). Bleaching with thioure a dioxide is not common practice but it is effective when used alone, and the process compares favorably with hydro gen peroxide bleaching. A formulation can include a commercial thioure a dioxide product, wetting agent and EDTA sequestering agent. Reductive bleaching is carried out at pH 7.0 at 70°C for 60 min (Duffield,
1986).

A white or light-yellow odorless crystalline powder. Mp:126°C. Soluble in water (27 g / L at room temperature). Decomposes exothermically at temperatures above 126°C with the emission of noxious gases (sulfur oxides, ammo nia, carbon mono xide, nitrogen oxides and hydrogen sulfide) and carbon dioxide. Extended exposure to temperatures above 50°C and moisture may cause visible
decomposition. Irritating to skin and mucous membranes. Corrosive to eye tissue. Used in leather processing, the paper industry, photographic industry, and in textile processing as a bleaching agent.

 

 

(1) Thioure. dioxide is used in reductive bleaching in textiles.Thioure. dioxide has also been used for the reduction of aromatic nitroaldehydes and nitroketones to nitroalcohols.

(2) Thioure. Dioxide is a new environmental-protection agent which can be used in place of sodium hydrosulfit., It has better thermal stability and stronger reducing ability. Operation is simple and effective, and transportation and storage convenient. There is no pollution associated during the operation.

 

(3) It is a promoter used with textiles and dyes, it is widely used to reduce dyes and sulfur dyes, and for bleaching wool and silk. Other uses include the reduction cleaning of disperse dyes, stripping undesirable colors from dyes, and in dye vat cleaning.

 

(4) It is also used in the paper industry as a bleaching agent and for deinking waste paper.

 

(5) It may be used as catalyst for producing synthetic resins in the polymer materials industry, and also has applications in organic synthesis of photosensitive materials, pharmaceuticals, spices and other fine chemicals, as well as in precious metal recovery and separation.

 

 

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