DI CHLORIDE NORMAL BUTANOL
1,4-Dichloro-2-butanol
CAS: 2419-74-1
Molecular Formula: C4H8Cl2O
DI CHLORIDE NORMAL BUTANOL - Names and Identifiers
| Name | 1,4-Dichloro-2-butanol |
| Synonyms | dichlorobutanol Dichlorobutanol 1,4-Dichlorobutanol 1,4-DICHLORO-2-BUTANOL 1,4-dichlorobutan-2-ol 1,4-Dichlorobutan-2-ol 1,4-Dichloro-2-butanol 2-Butanol, 1,4-dichloro- DI CHLORIDE NORMAL BUTANOL 1,4-dichloro-2-hydroxybutane |
| CAS | 2419-74-1 |
| EINECS | 219-339-2 |
| InChI | InChI=1/C4H8Cl2O/c5-2-1-4(7)3-6/h4,7H,1-3H2 |
DI CHLORIDE NORMAL BUTANOL - Physico-chemical Properties
| Molecular Formula | C4H8Cl2O |
| Molar Mass | 143.01 |
| Density | 1,29 g/cm3 |
| Boling Point | 90-95 °C(Press: 18 Torr) |
| Flash Point | 103.7°C |
| Vapor Presure | 0.0149mmHg at 25°C |
| Appearance | clear liquid |
| Color | Colorless to Light yellow |
| pKa | 13.58±0.20(Predicted) |
| Storage Condition | Room Temprature |
| Refractive Index | 1.4800 to 1.4830 |
| MDL | MFCD00191343 |
| Physical and Chemical Properties | Colorless transparent or light brown transparent liquid, content 80%-90%, boiling range 120.2-135 ℃(12.666-13.332kPa), refractive index 1.4882, soluble in ethanol, ether, benzene, insoluble in water. Visible light is easy to change color. Protected from light. |
DI CHLORIDE NORMAL BUTANOL - Nature
Open Data Verified Data
colorless transparent or light brown transparent liquid. Soluble in ethanol, ether, benzene, insoluble in water. Refractive index 4882. The boiling range is 120.2~135 ℃(12. 666~13. 332kPa). Visible light is easy to change color. Protected from light.
Last Update：2025-06-10 22:55:16
DI CHLORIDE NORMAL BUTANOL - Preparation Method
Open Data Verified Data
1,2, 4-butanetriol reacted with hydrochloric acid at 100-110 ° C. To produce 1, 4-chloro-2-butanol, and the reaction solution was neutralized and distilled to obtain a finished product.
Last Update：2022-01-01 10:15:41
DI CHLORIDE NORMAL BUTANOL - Application
Open Data Verified Data
pharmaceutical intermediates.
Last Update：2025-08-19 16:24:40
DI CHLORIDE NORMAL BUTANOL - Safety
Open Data Verified Data
- toxic, corrosive, irritating to mucous membranes and skin. Production equipment should be sealed to prevent leakage, and operators should wear protective equipment to avoid direct contact with the human body. See p,p,p chlorobutanol.
- packed in iron cans, 1kg per can, lined with polyethylene bag. Store in a cool and ventilated place, protected from light, heat and fire. According to the provisions of flammable and toxic chemicals storage and transportation.
Last Update：2025-06-10 22:55:16
DI CHLORIDE NORMAL BUTANOL - Reference Information
| use | pharmaceutical intermediates. |
| production method | add 1,2, 4-butanetriol and glacial acetic acid into the reaction pot, stir and heat to about 100 ℃, pass in dry hydrogen chloride gas, and react at 90-110 ℃ for 0.5h. when a large amount of hydrogen chloride begins to appear in the tail gas, check the end point of the reaction and stop passing hydrogen chloride. After cooling, it was washed with saturated sodium carbonate solution, distilled under reduced pressure, and collected at 120-135 ℃(12.6-13.3kPa) to obtain oily 1, 4-dichloro-2-butanol. The yield is 50-60%. Raw material consumption quota: 1,2, 4-butanetriol 2965kg/t, glacial acetic acid 50kg/t, hydrochloric acid (industrial products) 7000kg/t. |
Last Update：2024-04-10 22:29:15
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