Acetylacetone , AR,99% , 123-54-6
Synonym(s):
2,4-Pentanedione;ACAC
CAS NO.：123-54-6
Empirical Formula: C5H8O2
Molecular Weight: 100.12
MDL number: MFCD00008787
EINECS: 204-634-0
PRODUCT Properties
| Melting point: | -23 °C (lit.) |
| Boiling point: | 140.4 °C (lit.) |
| Density | 0.975 g/mL at 25 °C (lit.) |
| vapor density | 3.5 (vs air) |
| vapor pressure | 6 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 66 °F |
| storage temp. | Store below +30°C. |
| solubility | H2O: soluble1 in 8 parts |
| pka | 8.9(at 25℃) |
| form | Liquid |
| color | very deep green-yellow |
| Relative polarity | 0.571 |
| PH | 6 (200g/l, H2O, 20℃) |
| Odor | pleasant odor |
| explosive limit | 2.4-11.4%(V) |
| Water Solubility | 16 g/100 mL (20 ºC) |
| Merck | 14,81 |
| BRN | 741937 |
| Exposure limits | No exposure limit has been set. |
| Dielectric constant | 23.1（20℃） |
| InChIKey | YRKCREAYFQTBPV-UHFFFAOYSA-N |
| LogP | 0.68 at 20℃ |
| CAS DataBase Reference | 123-54-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Acetylacetone(123-54-6) |
| EPA Substance Registry System | Acetylacetone (123-54-6) |
Description and Uses
Acetylacetone (2,4-pentanedione) is a clear or slightly yellowish liquid with a putrid odour. It is readily soluble in water and in organic solvents and incompatible with light, ignition sources, excess heat, oxidising agents, strong reducing agents, and strong bases. On decomposition, acetylacetone releases hazardous products such as carbon monoxide, irritating and toxic fumes and gases, and carbon dioxide. Acetylacetone is used in the production of anti-corrosion agents and its peroxide compounds for the radical initiator application for polymerisation. It is used as a chemical intermediate for drugs (such as sulphamethazine, nicarbazine, vitamin B6, and vitamin K) and pesticides sulfonylurea herbicides and pesticides. It is used as an indicator for the complexometric titration of Fe (III), for the modification of guanidino groups and amino groups in proteins, and for the preparation of metal acetylacetonates for catalyst application.
Acetylacetone was used in preparing Y203, La203 and La2CuO4 thin films and the titanate/anatase dual-phase photocatalyst.
Safety
| Symbol(GHS) |   GHS02,GHS06 |
| Signal word | Danger |
| Hazard statements | H226-H302-H311+H331 |
| Precautionary statements | P210-P280-P301+P312+P330-P302+P352+P312-P304+P340+P311 |
| Hazard Codes | Xn,Xi |
| Risk Statements | 11-36/37/38-22-10-R22-R10-20/21/22-2017/10/22 |
| Safety Statements | 21-23-24/25-36-26-S24/25-S23-S21 |
| RIDADR | UN 2310 3/PG 3 |
| WGK Germany | 1 |
| RTECS | SA1925000 |
| F | 9-23 |
| Autoignition Temperature | 662 °F |
| TSCA | Yes |
| HS Code | 2914 19 90 |
| HazardClass | 3 |
| PackingGroup | III |
| Hazardous Substances Data | 123-54-6(Hazardous Substances Data) |
| Toxicity | LC50 (4 hrs) in rats: 1000 ppm (Carpenter) |
