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| Product Name: |
99.9%min thiourea dioxide
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| Supply Ability: |
7000metric tons |
| Related proudcts |
thiourea dioxide, formamidine sulfinic, fas, |
| Specifications |
CHEMICAL NAME Formamidine Sulfinic Acid or aminoiminomethanesulf |
| Price Term: |
FOB |
| Port of loading: |
Qingdao or Tianjin or Shanghai |
| Minimum Order |
1MT |
| Unit Price: |
USD2100/MT |
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I. Description of the product
TDO ( Thiourea Dioxide ) is also named as FAS. Its appearance is white crystal powder. Thiourea Dioxide is a stable compound with no strong reducing and oxidizing ability, and its dissolvability is 26.7g/l(20â„?,while its PH is 5.0 in saturated solution. TDO appears terrific stable even in 20â„?30â„?solution, but when it is under heat or catalysesing by alkali, it decomposes gradually to produce sulfoxylic acid through formamidine sulfinic acid to exhibit a reducing action.
II. Applications of the Product
TDO is a new kind of reducing agent that used as substitute of sodium hydrosulfite. It is widely used in textile and paper making industry. This product is also used in leather processing industry, paper, pulp and board industry, photographic industry, bleaching and reducing. This product is also a component of decolorisation agents. In macromolecule material industry, it is used as catalysis agent and stabilizer of resinic producing, and it is also used in organic synthesization of sensitizing material, and medicine, medical, spicery materials in fine chemicals, and also can be applied in the recycling and separating of heavy metals.
III. Quality Terms
Physical ï¼?Chemical Features
Name FAS
Byname Aminoiminomethane Sulfinic Acid
Appearance ï¼?Odor White Crystal, odorless
Molecular Formula (NH2)2CSO2
Molecular Weight 108.12
Melting Point 126â„?
PH 4 (1% Solution)
CAS NO. 1728-73-2 or 4189-44-0
Dangerous Goods Class 4.2
Specific Gravity 1.68
Specifications
Thiourea Dioxide(%) �9%
Thiourea(%) �.2%
Moisture(%) �.05%
Iron(Fe)(%) �0PPM
Sulphate(%) �.17%
Packing
25kgs kraft paper compound plastic bags
25kgs woven plastic bags(with two inner layers)
50kgs fiber drums
80kgs, 500kgs, 1000kgs container bags
According to the buyer’s request
IV. Storage Points for Attention
Sto |
| Company: |
Changyi Haosen Biotechnology Co., Ltd.
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| Contact: |
Ms. Qiao Li |
| Address: |
Liutuan Industrial Park |
| Postcode: |
261303 |
| Tel: |
865367800777 |
| Fax: |
865367800977 |
| E-mail: |
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