2,3-Butanedione
Product identifier
- Product name: 2,3-Butanedione
- CBnumber: CB3853625
- CAS: 431-03-8
- EINECS Number: 207-069-8
- Synonyms: 2,3-Butanedione,Diacetyl
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 400-158-6606
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
Substance
- Product name: 2,3-Butanedione
- Synonyms: 2,3-Butanedione,Diacetyl
- CAS: 431-03-8
- EC number: 207-069-8
- MF: C4H6O2
- MW: 86.09
Most important symptoms and effects, both acute and delayed
Indication of any immediate medical attention and special treatment needed
Extinguishing media
Suitable extinguishing mediaSpecial hazards arising from the substance or mixture
Carbon oxides Combustible.
Advice for firefighters
No data available
Further information
No data available
NFPA 704
| HEALTH | 2 | Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury (e.g. diethyl ether, ammonium phosphate, iodine) | |
| FIRE | 3 | Liquids and solids (including finely divided suspended solids) that can be ignited under almost all ambient temperature conditions . Liquids having a flash point below 22.8 °C (73 °F) and having a boiling point at or above 37.8 °C (100 °F) or having a flash point between 22.8 and 37.8 °C (73 and 100 °F). (e.g. gasoline, acetone) | |
| REACT | 0 | Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2) | |
| SPEC. HAZ. |
Personal precautions, protective equipment and emergency procedures
For personal protection see section 8.
Environmental precautions
No data available
Methods and materials for containment and cleaning up
No data available
Reference to other sections
For disposal see section 13.
Precautions for safe handling
Advice on safe handling
Use with local exhaust ventilation. Advice on safe handling
Avoid contact with skin and eyes. Avoid inhalation of vapor or mist. For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
No data available
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
control parameter
Hazard composition and occupational exposure limitsExposure controls
Personal protective equipmentThis recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de).
Splash contact Material: butyl-rubber
Minimum layer thickness: 0,7 mm
Break through time: 240 min Material tested:Butoject? (KCL 898)
Long sleeved clothing, Preventive skin protection
Prevent product from entering drains.
Information on basic physicochemical properties
- Appearance liquid
- OdourStench.
- Odour Threshold0,0086 ppm
- pHNo data available
- Melting point/freezing pointMelting point: -2 °C
- Initial boiling point and boiling range 88 °C - lit.
- Flash point7 °C - closed cup
- Evaporation rateNo data available
- Flammability (solid, gas)No data available
- Upper/lower flammability or explosive limits Upper explosion limit: 13,0 %(V) Lower explosion limit: 2,4 %(V)
- Vapour pressure 229 hPa at 50 °C 69,6 hPa at 20 °C
- Vapour density 3 (vs air)
- Relative densityNo data available
- Water solubility200 g/l at 25 °C
- Partition coefficient: n-octanol/waterlog Pow: -1,34 - (Lit.), Bioaccumulation is not expected.
- Autoignition temperature345 °C
- Decomposition temperatureNo data available
- ViscosityViscosity, kinematic: No data available Viscosity, dynamic: No data available
- Explosive propertiesNo data available
- Oxidizing propertiesNo data available
Other safety information
No data available
Reactivity
No data available
Chemical stability
No data available
Possibility of hazardous reactions
Violent reactions possible with:
alkalines Acids
Risk of ignition or formation of inflammable gases or vapours with: strong oxidising agents
Conditions to avoid
No data available
Incompatible materials
various plastics
Hazardous decomposition products
In the event of fire: see section 5
Information on toxicological effects
Acute toxicityLC50 Inhalation - Rat - 4 h - 2,25 - 5,2 mg/l Remarks: (External MSDS)
Symptoms: Possible damages:, Irritation symptoms in the respiratory tract. LD50 Dermal - Rabbit - > 5.000 mg/kg
Remarks: (RTECS)
Remarks: (External MSDS)
Result: negative
Remarks: (National Toxicology Program)
Toxicity
(butanedione)
Persistence and degradability
Biodegradability Result: - Readily biodegradable.
Bioaccumulative potential
No data available
Mobility in soil
No data available
Results of PBT and vPvB assessment
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
Other adverse effects
Discharge into the environment must be avoided.
UN number
UN proper shipping name
Transport hazard class(es)
ADR/RID: 3 IMDG: 3 IATA: 3
Packaging group
ADR/RID: II IMDG: II IATA: II
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
No data available
Safety, health and environmental regulations/legislation specific for the substance or mixture
Regulations on the Safety Management of Hazardous ChemicalsAbbreviations and acronyms
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- CAS: Chemical Abstracts Service
- EC50: Effective Concentration 50%
- IATA: International Air Transportation Association
- IMDG: International Maritime Dangerous Goods
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- STEL: Short term exposure limit
- TWA: Time Weighted Average
References
【1】CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
【2】ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
【3】ECHA - European Chemicals Agency, website: https://echa.europa.eu/
【4】eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
【5】ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
【6】Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
【7】HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
【8】IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
【9】IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
【10】Sigma-Aldrich, website: https://www.sigmaaldrich.com/
Other Information
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.