Diacetyl 2-3-Diketo butane（CAS#431-03-8）
| Risk Codes | R11 – Highly Flammable R20/22 – Harmful by inhalation and if swallowed. R38 – Irritating to the skin R41 – Risk of serious damage to eyes R36/38 – Irritating to eyes and skin. R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. R37/38 – Irritating to respiratory system and skin. |
| Safety Description | S9 – Keep container in a well-ventilated place. S16 – Keep away from sources of ignition. 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 S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S39 – Wear eye / face protection. |
| UN IDs | UN 2346 3/PG 2 |
| WGK Germany | 2 |
| RTECS | EK2625000 |
| FLUKA BRAND F CODES | 13 |
| TSCA | Yes |
| HS Code | 29141990 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in rats: 1580 mg/kg (Jenner) |
Introduction
2,3-Butanedione is an organic compound. The following is an introduction to the properties, uses, preparation methods and safety information of 2,3-butanedione:
Quality:
- Appearance: 2,3-Butanedione is a colorless liquid with a pungent odor.
- Solubility: It is soluble in water and in many organic solvents.
- Stability: 2,3-butanedione is relatively stable to light and heat.
Use:
- Industrial applications: 2,3-butanedione is often used as a raw material for solvents, coatings and plastic additives.
- Chemical reactions: It can be used as reaction intermediates in organic synthesis, such as the synthesis and oxidation of ketones.
Method:
- The typical synthesis method is to obtain 2,3-butanedione by oxidation of butanedione. This is achieved by reacting 2-butanone with oxygen in the presence of a catalyst.
Safety Information:
- 2,3-Butanedione is irritating, especially to the eyes and skin. Avoid contact with skin and eyes during use, and rinse immediately with plenty of water if there is contact.
- It is a flammable liquid and should be avoided from contact with fire sources and used in a well-ventilated area.
- In case of accidental ingestion or inhalation, seek medical attention immediately.
