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Thiourea dioxide

Thiourea dioxide
Thiourea dioxide structure
CAS No.
1758-73-2
Chemical Name:
Thiourea dioxide
Synonyms
FASTECH;Amino(imino);Thiurea dioxide;FAS PRIMER PAIR;Tiourea dioxide;THIOUREA DIOXIDE;TNFRSF6 PRIMER PAIR;AMIDINOSULFINIC ACID;Thiourea S,S-dioxide;Formamidine sulfinate
CBNumber:
CB7761108
Molecular Formula:
CH4N2O2S
Formula Weight:
108.12
MOL File:
1758-73-2.mol

Thiourea dioxide Properties

Melting point:
124-127 °C (dec.)(lit.)
Boiling point:
355.3±25.0 °C(Predicted)
Density 
1.68
refractive index 
1.6550 (estimate)
storage temp. 
2-8°C
solubility 
27g/l
pka
2.40±0.10(Predicted)
form 
Crystalline Powder
color 
White
PH
4 (10g/l, H2O, 20℃)
Water Solubility 
30 g/L (20 ºC)
Sensitive 
Moisture Sensitive
BRN 
506653
InChIKey
FYOWZTWVYZOZSI-UHFFFAOYSA-N
CAS DataBase Reference
1758-73-2(CAS DataBase Reference)
FDA UNII
42BWR07L73
EPA Substance Registry System
Methanesulfinic acid, aminoimino- (1758-73-2)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS06,GHS07,GHS08
Signal word  Danger
Hazard statements  H330-H336-H361-H370-H371-H373-H402-H251-H302-H315-H319-H335
Precautionary statements  P301+P312+P330-P305+P351+P338-P407-P413-P420-P261-P280a-P501a-P201-P202-P235+P410-P260-P264-P270-P271-P273-P280-P284-P302+P352+P332+P313+P362+P364-P304+P340+P310-P305+P351+P338+P337+P313-P307+P311-P403+P233-P405
Hazard Codes  Xn,Xi
Risk Statements  5-22-36/37/38
Safety Statements  26-24/25-36
RIDADR  UN 3341 4.2/PG 2
WGK Germany  1
RTECS  PB0372500
TSCA  Yes
HazardClass  4.2
PackingGroup  II
HS Code  29309070

Thiourea dioxide price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich F16001 Formamidinesulfinic acid ≥98% 1758-73-2 100g $27.2 2021-03-22 Buy
Sigma-Aldrich 8.20082 Aminoiminomethanesulfinic acid for synthesis 1758-73-2 250 g $55.96 2021-03-22 Buy
Sigma-Aldrich 8.20082 Aminoiminomethanesulfinic acid for synthesis. CAS No. 1758-73-2, EC Number 217-157-8., for synthesis 1758-73-2 8200820250 $58.4 2020-08-18 Buy
Sigma-Aldrich 8.20082 Aminoiminomethanesulfinic acid for synthesis 1758-73-2 1 kg $156.32 2021-03-22 Buy
TCI Chemical F0115 Formamidinesulfinic Acid >93.0%(T) 1758-73-2 25g $22 2021-03-22 Buy

Thiourea dioxide Chemical Properties,Uses,Production

Chemical Properties

white crystalline powder

Uses

Convenient reagent for the reduction of ketones to secondary alcohols.
Thiourea dioxide is an effective bleach when used alone or when used after hydrogen peroxide in a full bleaching process (Duffield, 1986; Cegarra et al, 1988). Bleaching with thiourea dioxide is not common practice but it is effective when used alone, and the process compares favorably with hydrogen peroxide bleaching. A formulation can include a commercial thiourea 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).
Thiourea dioxide

General Description

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, ammonia, carbon monoxide, 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.

Air & Water Reactions

Soluble in water

Reactivity Profile

Thiourea dioxide is a reducing agent and a derivative of sulfinic acid (a weak inorganic acid). Decolorizes and bleaches materials by chemical reduction. Stable under normal temperatures and pressures. May decompose on exposure to moist air or water. Incompatible with strong oxidizing agents, strong bases. Aqueous solutions are acidic and corrosive.

Health Hazard

Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.

Fire Hazard

Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.

Purification Methods

Dissolve it in five parts of aqueous 1:1% NaHSO3 at 60-63o (charcoal), then allow it to crystallise slowly, with agitation, at 10o. Filter and dry it immediately at 60o [Koniecki & Linch Anal Chem 30 1134 1958]. [Beilstein 3 I 36, 3 IV 145.]

Thiourea dioxide Preparation Products And Raw materials

Raw materials

Preparation Products


Thiourea dioxide Suppliers

Global( 319)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 20012 60
Dalian Richfortune Chemicals Co., Ltd
0411-84820922
86-411-84821380 sales@richfortunechem.com China 300 57
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8909 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
career henan chemical co
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sales@coreychem.com CHINA 29954 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293
+86 0531-67809011 sales@sdzschem.com CHINA 2941 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
sales3@crovellbio.com China 5930 58

View Lastest Price from Thiourea dioxide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-12-07 Thiourea dioxide
1758-73-2
US $0.00 / Kg/Drum 1KG 99.9% 100000kg per month Wuhan Mulei New Material Technology Co. Ltd
2021-12-01 Thiourea dioxide
1758-73-2
US $3.70 / Kg/Bag 10g 99% 10000kg Hebei Crovell Biotech Co Ltd
2021-10-19 Thiourea dioxide
1758-73-2
US $10.00 / Kg/Bag 1KG 99% 20 tons Hebei Zhanyao Biotechnology Co. Ltd

Thiourea dioxide Spectrum


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