3234-02-4
trans-2,3-Dibromo-2-butene-1,4-diol
CAS: 3234-02-4
Molecular Formula: C4H6Br2O2
3234-02-4 - Names and Identifiers
3234-02-4 - Physico-chemical Properties
| Molecular Formula | C4H6Br2O2 |
| Molar Mass | 245.9 |
| Density | 1.9671 (rough estimate) |
| Melting Point | 112-114°C(lit.) |
| Boling Point | 318.1±42.0 °C(Predicted) |
| Flash Point | 146.2°C |
| Water Solubility | 1-5 g/100 mL at 21 ºC |
| Vapor Presure | 0.004-0.081Pa at 25-40℃ |
| Appearance | Solid:crystalline |
| pKa | 11.91±0.10(Predicted) |
| Storage Condition | Room Temprature |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.5230 (estimate) |
| Physical and Chemical Properties | White Crystal or white powder, soluble in ethanol. Slightly soluble in dichloroethane. Toxic, moisture-proof, sealed preservation. |
3234-02-4 - 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 | EM6910000 |
| HS Code | 29055998 |
| Hazard Note | Irritant |
3234-02-4 - Reference Information
| LogP | 0.31 at 25℃ and pH7 |
| surface tension | 67.79mN/m at 1g/L and 20 ℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| uses | organic synthesis, pharmaceutical intermediates. this product has no pollution, low toxicity and no cream. it is a high-temperature induced high-efficiency plasticizer. it is suitable for high-temperature compounding and is added at the beginning of plastication. The processing temperature should be above 120 ℃. The dosage in NR rubber is about 0.1-0.15%, and the dosage in styrene-butadiene rubber should be appropriately increased. |
Last Update：2024-04-09 20:52:54
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