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Specifications
Thiourea Dioxide (TDO) 99%,
1. Free sample
2. Fast delivery
3. ISO/SGS/COA
4. Thiourea Dioxide cas: 1758-32-2
Thiourea Dioxide (TDO) 99%,
1. Characters:
Product Name: Thiourea Dioxide
MF: CH4N2SO2
Molecular weight: 108.12
CAS No. 1758-73-2, 4189-44-0
EINECS No.: 217-517-8
UN NO. 3341
Dangerous Class: 4.2
Other name: Formamidine Sulfinic Acid (FAS), TDO, TUD
Appearance: White crystal powder
2. Specifications:
ItemsStandard
Appearancewhite crystal powder
Purity: (%)≥ 99.0
Thiourea: (%)≤ 0.10
Moisture: (%)≤ 0.05
Iron(PPM)≤ 10
Sulphate: (%)≤ 0.17
3. Properties:
Thiourea is a stable compound with no strong reducing and oxidizing ability.
4. Usage:
TDO is a new kind of reducing agent that used as exchange 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 agents. 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, medicial, spicery materials in fine chemicals, and also can be applied in the recycling and separating of heavy metals.
| Specifications |
Superior quality |
First-grade |
Qualified products |
| Thiourea (as(NH 2 ) 2 CS) %≥ |
99.0 |
98.0 |
97.0 |
| Heating loss%≤ |
0.40 |
0.50 |
1.00 |
| Ash content%≤ |
0.10 |
0.15 |
0.30 |
| Water insoluble %≤ |
0.20 |
0.05 |
0.10 |
| Thiocyanate(as CNS) %≤ |
0.02 |
0.02 |
0.10 |
| Melting point |
171 |
170 |
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