A3130812
Diacetone alcohol , standardforGC,≥99.5%(GC) , 123-42-2
Synonym(s):
2-Methyl-2-pentanol-4-one, Diacetone alcohol;4-Hydroxy-4-methyl-2-pentanone;Diacetone alcohol
CAS NO.：123-42-2
Empirical Formula: C6H12O2
Molecular Weight: 116.16
MDL number: MFCD00004471
EINECS: 204-626-7
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -42.8 °C |
| Boiling point: | 166 °C(lit.) |
| Density | 0.938 g/mL at 20 °C |
| vapor density | 4 (vs air) |
| vapor pressure | <1 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 132 °F |
| storage temp. | Store below +30°C. |
| solubility | Soluble in alcohol, ether (Weast, 1986), and many other solvents, particular ketones such as
acetone and 2-butanone. |
| pka | 14.57±0.29(Predicted) |
| form | Liquid |
| color | Clear colorless |
| Odor | Mild, pleasant. |
| explosive limit | 1.8-6.9%(V) |
| Water Solubility | MISCIBLE |
| λmax | 249nm(lit.) |
| Merck | 14,2964 |
| BRN | 1740440 |
| Specific Activity | 25-50 mCi/mmol |
| Solvent | Ethanol |
| Concentration | 0.1 mCi/ml |
| Exposure limits | TLV-TWA 240 mg/m3 (50 ppm) (ACGIH);
IDLH 2100 ppm (NIOSH). |
| Dielectric constant | 18.2（Ambient） |
| Stability: | Stable. Flammable. Incompatible with strong oxidizing agents, amines, ammonia, strong acids, strong bases, alkalies, aluminium. |
| LogP | -0.09 at 20℃ |
| CAS DataBase Reference | 123-42-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 4-Hydroxy-4-methylpentan-2-one(123-42-2) |
| EPA Substance Registry System | 4-Hydroxy-4-methyl-2-pentanone (123-42-2) |
Description and Uses
Diacetone alcohol is a colorless liquid with amild, minty odor. Odor threshold = 0.28 ppm. Molecularweight = 116.16; Specific gravity (H2O:1) = 0.94; Boilingpoint = 168℃; Freezing/Melting point = - 43.8℃; Vaporpressure = 1 mmHg at 20℃; Flash point = 64℃; 58℃(acetone free); 64℃ (commercial grade). Explosive limits:LEL = 1.8%; UEL = 6.9%. Hazard Identification (based onNFPA-704 M Rating System): Health 1, Flammability 2,Reactivity 0. Soluble in water.
Solvent for pigments, cellulose, resins, oils, fats, and hydrocarbons; hydraulic brake fluid; antifreeze
Safety
| Symbol(GHS) |    GHS02,GHS07,GHS08 |
| Signal word | Warning |
| Hazard statements | H226-H319-H335-H361fd |
| Precautionary statements | P202-P210-P233-P240-P305+P351+P338-P308+P313 |
| Hazard Codes | Xi |
| Risk Statements | 36-R36 |
| Safety Statements | 24/25-S24/25 |
| RIDADR | UN 1148 3/PG 3 |
| OEB | A |
| OEL | TWA: 50 ppm (240 mg/m3) |
| WGK Germany | 1 |
| RTECS | SA9100000 |
| F | 9 |
| Autoignition Temperature | 640 °C |
| TSCA | Yes |
| HS Code | 2914 40 10 |
| HazardClass | 3 |
| PackingGroup | III |
| Hazardous Substances Data | 123-42-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 4.0 g/kg (Smyth) |
| IDLA | 1,800 ppm [10% LEL] |
