DITHIOBIUREA
2,5-Dithiobiurea
CAS: 142-46-1
Molecular Formula: C2H6N4S2
DITHIOBIUREA - Names and Identifiers
| Name | 2,5-Dithiobiurea |
| Synonyms | DITHIOUREA DITHIODIUREA DITHIOBIUREA 2,5-DITHIOBIUREA 2,5-Dithiobiurea Hydrazodicarbothioamide DITHIOCARBAMOYL HYDRAZINE 1,2-HYDRAZINE CARBOTHIOAMIDE 1,2-HYDRAZINEDICARBOTHIOAMIDE 1,2-HYDRAZINE-O-DICARBOTHIOAMIDE |
| CAS | 142-46-1 |
| EINECS | 205-537-6 |
| InChI | InChI=1/C2H6N4S2/c3-1(7)5-6-2(4)8/h(H3,3,5,7)(H3,4,6,8) |
| InChIKey | KCOYHFNCTWXETP-UHFFFAOYSA-N |
DITHIOBIUREA - Physico-chemical Properties
| Molecular Formula | C2H6N4S2 |
| Molar Mass | 150.23 |
| Density | 1.412 (estimate) |
| Melting Point | 212°C (dec.)(lit.) |
| Boling Point | 291.6±23.0 °C(Predicted) |
| Flash Point | 130.1°C |
| Water Solubility | Soluble in hot water, pyridine, triethylamine and dimethylformamide. Insoluble in cold water. |
| Vapor Presure | 0.00193mmHg at 25°C |
| Appearance | solid |
| Color | White to Light yellow |
| BRN | 1723178 |
| pKa | 10.24±0.70(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Refractive Index | 1.5605 (estimate) |
| Physical and Chemical Properties | Pure dithiourea is white crystalline solid, m. P. 206~208 ℃, has a certain solubility in hot water, soluble in pyridine, triethylamine, dimethylformamide and general solvent. |
| Use | Used as a pharmaceutical Intermediate |
DITHIOBIUREA - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| RTECS | EC1460000 |
| TSCA | Yes |
DITHIOBIUREA - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | dithiourea is an intermediate of the fungicide folkuzole. pesticide and pharmaceutical intermediates. used as pharmaceutical intermediates |
| production method | hydrazine sulfate and ammonium thiocyanate were condensed and redischarged. The preparation method is to put wet base hydrazine sulfate into the reaction kettle under stirring, add a small amount of catalyst, and then put ammonium thiocyanate, open the jacket steam heating reflux for 3.5h, cool, discharge, filter, washing with water, vacuum suction filtration to dry, to obtain the finished product. |
| category | pesticide |
| toxicity grade | high toxicity |
| Acute toxicity | oral-rat LD50: 500 mg/kg; Intraperitoneal-mouse LD50: 100 mg/kg |
| flammability hazard characteristics | Thermal decomposition emissions of toxic nitrogen oxides and sulfur oxides |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Stored separately from oxidants and acids |
| extinguishing agent | water, dry powder, dry sand, carbon dioxide, foam, 1211 extinguishing agent |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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