ChemicalBook >?? ???? >2,2,5-??????
2,2,5-??????
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2,2,5-?????? ??
- ???
- -105.76°C
- ?? ?
- 122°C
- ??
- 0,71 g/cm3
- ???
- 3.647 at 0.000 °C, 5.072 at 5.000 °C, 6.958 at 10.000 °C, 9.418 at 15.000 °C, 12.583 at 20.000 °C,16.625 at 25.000 °C, 21.719 at 30.000 °C (inclined-piston, Osborn and Douslin, 1974)
- ???
- 1.3990 to 1.4010
- ???
- 13°C
- ???
- In methanol, g/L: 162 at 5 °C, 179 at 10 °C, 200 at 15 °C, 221 at 20 °C, 247 at 25 °C, 280 at 30 °C, 316 at 35 °C, 360 at 40 °C (Kiser et al., 1961); miscible with hexane and pentane.
- ??? ??
- ??? ??
- ?? ?? (pKa)
- >14 (Schwarzenbach et al., 1993)
- ??
- ?? ?? ?? ??
- Odor Threshold
- 0.9ppm
- ???
- 1.15mg/L(25℃)
- Henry's Law Constant
- 3.45 at 25 °C (Mackay and Shiu, 1981)
- ?? ??
- ACGIH TLV: TWA for all isomers 200 ppm (adopted).
- CAS ??????
- 3522-94-9(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ?? ???? ?? | 11 | ||
|---|---|---|---|
| ????? | 16-26 | ||
| ????(UN No.) | 3295 | ||
| RTECS ?? | MO4630000 | ||
| HS ?? | 2901.29.1050 | ||
| ?? ?? | 3 | ||
| ???? | III | ||
| ???? ?? | KE-34539 |
2,2,5-?????? C??? ??, ??, ??
??? ??
Colorless liquid.??? ??
Clear, colorless, flammable liquid with a faint aliphatic hydrocarbon odor. An odor threshold concentration of 900 ppbv was reported by Nagata and Takeuchi (1990).??
Synthesis, motor-fuel additive.???
Flammable, dangerous fire risk; the 2,3,3-, 2,3,4-, and 3,3,4-isomers are less flammable.????
Chemical/Physical. Complete combustion in air produces carbon dioxide and water vapor. 2,2,5-Trimethylhexane will not hydrolyze because it does not contain a hydrolyzable functional group.2,2,5-?????? ?? ?? ? ???
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2,2,5-?????? ?? ??
???( 52)?? ??
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2,2,5-?????? ?? ??:
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