2,2-Dimethylbutan
Bezeichnung:2,2-Dimethylbutan
CAS-Nr75-83-2
Englisch Name:2,2-Dimethylbutane
CBNumberCB7280708
SummenformelC6H14
Molgewicht86.18
MOL-Datei75-83-2.mol
Synonyma
2,2-Dimethylbutan
2,2-Dimethylbutan physikalisch-chemischer Eigenschaften
| Schmelzpunkt | −100 °C(lit.) |
| Siedepunkt | 50 °C(lit.) |
| Dichte | 0.649 g/mL at 25 °C(lit.) |
| Dampfdichte | 2.97 (vs air) |
| Dampfdruck | 5.35 psi ( 20 °C) |
| Brechungsindex | n |
| Flammpunkt | <−30 °F |
| storage temp. | Flammables area |
| Löslichkeit | In methanol: 590 and 800 g/L at 5 and 10 °C, respectively. Miscible at higher temperatures (Kiser et al., 1961). Miscible with other aliphatic hydrocarbons, e.g., pentane, hexane, heptane, etc. |
| Aggregatzustand | Liquid |
| pka | >14 (Schwarzenbach et al., 1993) |
| Farbe | Clear colorless to slightly yellow |
| Explosionsgrenze | ~7.7% |
| Odor Threshold | 20ppm |
| Wasserlöslichkeit | insoluble |
| BRN | 1730736 |
| Henry's Law Constant | 1.69(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981) |
| Expositionsgrenzwerte | ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and 1,000 ppm, respectively (adopted). |
| Kennzeichnung gefährlicher | F,Xn,N |
| R-Sätze: | 11-38-51/53-65-67 |
| S-Sätze: | 9-16-29-33-61-62 |
| RIDADR | UN 1208 3/PG 2 |
| OEB | A |
| OEL | TWA: 100.0 ppm; 350.0 mg/m3, STEL: 510.0 ppm; 1800.0 mg/m3 |
| WGK Germany | 3 |
| RTECS-Nr. | EJ9300000 |
| Selbstentzündungstemperatur | 797 °F |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29011000 |
| Giftige Stoffe Daten | 75-83-2(Hazardous Substances Data) |
| Toxizität | Reported as an impurity (0.2 wt %) in 99.0–99.7 wt % 2,3-dimethylbutane (Chevron Phillips, 2004). |
