Chemical & Physical Information
Common Names | 1,4-Butanediol, BDO, 1,4-Butylene glycol, Tetramethylene glycol |
Structure | C4H10O2 |
CAS No. | 110-63-4 | Density | 1.0±0.1 g/cm3 |
Molecular Weight | 90.121 | Boiling point | 228.0±0.0 °C at 760 mmHg |
Appearance | Clear colorless liquid | Melting Point | 20 °C |
HS Code | 2905399090 | Flash point | 105.9±13.0 °C |
Refractive index: | 1.441 | LogP | -1.02 |
Safety Information
Safety Statement (Europe) |
S36Xn:Harmful |
Risk statement (Europe) |
R22 |
RTECS Number |
EK0525000 |
Water hazard class (WGK) |
1 |
Hazard Code (Europe) |
Xn:Harmful |
Hazard category |
6.1 |
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FIRST AID |
Inhalation |
Move the patient to fresh air. If breathing stops, perform artificial respiration. Consult a doctor |
Skin |
Rinse with soap and plenty of water. Consult a doctor. |
Eyes |
Rinse thoroughly with plenty of water for at least 15 minutes and consult a doctor. |
Ingestion |
Never feed anything to the unconscious person. Rinse your mouth with water. Consult a doctor. |
Synthetic Route
In the first step, acetylene and formaldehyde are placed in a reactor composed of several slurry bed reactors connected in series, using an improved Cu catalyst to react at 79-90°C and 0.12-0.13MPa to form butynediol. After filtration, the catalyst and the reactant are separated and left in the reactor, and the liquid phase material flows out of the reactor to be purified and then enters the lower…
In the second step, an improved catalyst is used in the slurry bed, butynediol is hydrogenated at 120-150°C to generate BDO, and finally BDO is purified by distillation and thin film evaporation, and the purity of BDO is ≥99%. |