2,4-DIMETHYLPENTANE
2,4-dimethylpentane
CAS: 108-08-7
Molecular Formula: C7H16
2,4-DIMETHYLPENTANE - Names and Identifiers
| Name | 2,4-dimethylpentane |
| Synonyms | Dimethylpentane DIISOPROPYLMETHANE Heptan und Isomere Diisopropylmethane 2,4-dimethylpentane 2,4-DIMETHYLPENTANE pentane,2,4-dimethyl- dimethylpentane(non-specificname) 2,4-DIMETHYLPENTANE, STANDARD FOR GC |
| CAS | 108-08-7 |
| EINECS | 203-548-0 |
| InChI | InChI=1/C7H16/c1-6(2)5-7(3)4/h6-7H,5H2,1-4H3 |
2,4-DIMETHYLPENTANE - Physico-chemical Properties
| Molecular Formula | C7H16 |
| Molar Mass | 100.2 |
| Density | 0.673g/mLat 25°C(lit.) |
| Melting Point | −123°C(lit.) |
| Boling Point | 80°C(lit.) |
| Flash Point | 10°F |
| Water Solubility | 4.41mg/L(25 ºC) |
| Solubility | Soluble in acetone, benzene, chloroform, alcohol and ether. |
| Vapor Presure | 3.29 psi ( 37.7 °C) |
| Vapor Density | 3.48 (vs air) |
| Appearance | neat |
| Exposure Limit | ACGIH: TWA 400 ppm; STEL 500 ppm |
| BRN | 1696855 |
| pKa | >14 (Schwarzenbach et al., 1993) |
| Explosive Limit | ~7% |
| Refractive Index | n20/D 1.381(lit.) |
2,4-DIMETHYLPENTANE - Risk and Safety
| Risk Codes | R11 - Highly Flammable R38 - Irritating to the skin R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R65 - Harmful: May cause lung damage if swallowed R67 - Vapors may cause drowsiness and dizziness |
| Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. S29 - Do not empty into drains. S33 - Take precautionary measures against static discharges. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. |
| UN IDs | UN 3295 3/PG 2 |
| WGK Germany | 3 |
| TSCA | Yes |
| Hazard Class | 3 |
| Packing Group | II |
2,4-DIMETHYLPENTANE - Reference Information
| olfactory threshold (Odor Threshold) | 0.94ppm |
| Henry's Law Constant | 2.94(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | 2,4-dimethylpentane can be used in the fields of medicine and chemical industry, such as preparing a composite extractant for detecting the soluble content of elastomer modified asphalt waterproofing membrane, or used in the manufacture of epoxy alkane polymer, etc. |
| preparation | adding 2.0mmol 2,4-dimethyl -1,3-pentadiene and 0.0136g cross-linked poly (styrene-divinylbenzene) coating to coat SiO2 carrier supported nano Pd metal particle catalyst in a 6ml autoclave. After replacing the air in the kettle with carbon dioxide for three times, heating to 40 ℃, introducing 3MPa hydrogen and 8MPa carbon dioxide, reacting under magnetic stirring for 16 hours, the ice-water mixture is cooled, slowly deflated, ultracentrifugated, and the supernatant is analyzed by gas chromatography. The corresponding products are 2, 4-dimethyl-2-pentene, 2, 4-dimethyl-1-pentene and 2, 4-dimethylpentane. |
Last Update：2024-04-09 15:16:44
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