| Product Identification | Back to Contents | 【Product Name】
2,3-Butanedione | 【Synonyms】
2,3-Diketobutane
Butanedione
Diacetyl
Dimethyl diketone
Dimethylglyoxal | 【CAS】
431-03-8 | 【Formula】
C4H6O2 | 【Molecular Weight】
86.09 | 【EINECS】
207-069-8 | 【RTECS】
EK2625000 | 【RTECS Class】
Tumorigen; Drug; Mutagen; Primary Irritant | 【Merck】
13,2985 | 【Beilstein/Gmelin】
605398 | 【Beilstein Reference】
4-01-00-03644 | 【EC Class】
highly flammable, harmful, irritant |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
A clear colorless liquid with a strong chlorine-like odor. | 【Solubility in water】
Miscible | 【Melting Point】
-2 | 【Boiling Point】
190 | 【Vapor Pressure】
0.01 (-70 C) | 【Density】
0.9904 g/cm3 | 【Heat Of Vaporization】
38.73 kJ/mol | 【Heat Of Combustion】
-2072 kJ/mol | 【Usage】
Carrier of aroma of butter, vinegar, coffee & other foods. | 【Vapor Density】
3 | 【Odor threshold】
8.6 ppb | 【Refractive Index】
1.39303 |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Refrigerator/flammables. | 【Handling】
Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. |
| Hazards Identification | Back to Contents | 【Inhalation】
May cause respiratory tract irritation. | 【Skin】
Causes moderate skin irritation. Causes redness and pain. | 【Eyes】
May cause eye irritation. Causes redness and pain. | 【Ingestion】
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. | 【Hazards】
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. | 【EC Risk Phrase】
R 11 20 36/38 | 【EC Safety Phrase】
S 16 26 36/37/39 | 【UN (DOT)】
2346 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. | 【Exposure Effects】
Limited studies have generally documented little or no effect of ketones on reproduction in experimental animals. Human data is lacking. 2,5-Hexanedione has an effect on spermatogenesis in male experimental animals. | 【Poison Class】
4 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
5 | 【Autoignition】
365 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Containers may explode in the heat of a fire. Extinguishing media: Use water spray to cool fire-exposed containers. In case of fire use water fog, dry chemical, carbon dioxide or alcohol type foam. | 【Upper exp. limit】
13.0 | 【Lower exp. limit】
2.4 | 【Fire Potential】
HIGHLY FLAMMABLE. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. Use a spark-proof tool. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
1 | 【Incompatibilities】
Metals, strong oxidizing agents, strong reducing agents, strong bases. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Carbon monoxide, carbon dioxide. | 【Combustion Products】
Fire may produce irritating, corrosive and/or toxic gases. |
|
| Company Name: |
Giant chemicals |
| Tel: |
028-85434334 18108076537 |
| Fax: |
QQ：245797092 |
| WebSite: |
http://www.gianthx.com |
| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Fax: |
021-67582001/03/05 |
| WebSite: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical |
| Tel: |
021-021-58432009 400-005-6266 |
| Fax: |
021-58436166 |
| WebSite: |
http://www.energy-chemical.com |
|