1892-29-1
2,2-DITHIODIETHANOL
CAS: 1892-29-1
Molecular Formula: C4H10O2S2
1892-29-1 - Names and Identifiers
1892-29-1 - Physico-chemical Properties
| Molecular Formula | C4H10O2S2 |
| Molar Mass | 154.25 |
| Density | 1.261 g/mL at 25 °C (lit.) |
| Melting Point | 25-27 °C (lit.) |
| Boling Point | 158-163 °C/3.5 mmHg (lit.) |
| Flash Point | >230 °F |
| Water Solubility | Soluble in water, ethanol, acetone, and ether. |
| Appearance | Morphological liquid |
| pKa | 14.02±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.57(lit.) |
| Physical and Chemical Properties | EPA Chemical Information Ethanol, 2,2 '-dithiobis- (1892-29-1) |
| Use | 2-Hydroxyethyl disulfide is an organic intermediate, can be obtained by 3-mercapto-1-propanol and sodium iodide, hydrogen peroxide reaction. 2-hydroxyethyl disulfide can be used to prepare polyurethane films. |
1892-29-1 - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R25 - Toxic if swallowed R41 - Risk of serious damage to eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | KK7525000 |
| FLUKA BRAND F CODES | 13 |
| TSCA | Yes |
| HS Code | 29309099 |
| Hazard Class | 6.1 |
| Packing Group | III |
1892-29-1 - Upstream Downstream Industry
| Downstream Products | DITHIOLAN-2-IMINE 2-(METHYLTHIO)ETHANOL |
1892-29-1 - Nature
| maximum wavelength (& lambda;max) | 247nm(H2O)(lit.) |
| BRN | 1735851 |
Last Update：2024-04-10 22:29:15
1892-29-1 - Preparation
put the raw materials 3-mercapto-1-propanol (0.92g,1mmol) and sodium iodide (1.5mg,0.01mmol) into a three-mouth flask, add 3mL of ethyl acetate as solvent, and slowly add 30% hydrogen peroxide (0.11mL,1mmol) dropwise under magnetic stirring. After dropping, continue stirring at 30 ℃ for half an hour. After stirring, 15mL of saturated sodium thiosulfate aqueous solution was added and extracted with 15mL of ethyl acetate. Then the extract was washed with 15mL of saturated salt water, then dried with anhydrous sodium sulfur, and finally, the solvent was removed by spin evaporation to obtain the product 2-hydroxyethyl disulfide with a yield of 98%.
Last Update：2024-04-10 22:29:15
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