Trimethylhexane, 2,2,5-
2,2,5-Trimethylhexane
CAS: 3522-94-9
Molecular Formula: C9H20
Trimethylhexane, 2,2,5- - Names and Identifiers
| Name | 2,2,5-Trimethylhexane |
| Synonyms | ISONONANE neononane 2,2,5-TRIMETHYLHEXANE 2,2,5-Trimethylhexane 2,2,5-trimethyl-hexan Trimethylhexane, 2,2,5- |
| CAS | 3522-94-9 |
| EINECS | 222-537-1 |
| InChI | InChI=1/C9H20/c1-8(2)6-7-9(3,4)5/h8H,6-7H2,1-5H3 |
Trimethylhexane, 2,2,5- - Physico-chemical Properties
| Molecular Formula | C9H20 |
| Molar Mass | 128.26 |
| Density | 0,71 g/cm3 |
| Melting Point | -105.76°C |
| Boling Point | 122°C |
| Flash Point | 13°C |
| Water Solubility | 1.15mg/L(25 ºC) |
| Solubility | 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. |
| Vapor Presure | 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) |
| Appearance | clear liquid |
| Color | Colorless to Almost colorless |
| Exposure Limit | ACGIH TLV: TWA for all isomers 200 ppm (adopted). |
| pKa | >14 (Schwarzenbach et al., 1993) |
| Refractive Index | 1.3990 to 1.4010 |
Trimethylhexane, 2,2,5- - Risk and Safety
| Risk Codes | 11 - Highly Flammable |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | 3295 |
| RTECS | MO4630000 |
| Hazard Class | 3 |
| Packing Group | III |
Trimethylhexane, 2,2,5- - Reference Information
| olfactory threshold (Odor Threshold) | 0.9ppm |
| Henry's Law Constant | 3.45 at 25 °C (Mackay and Shiu, 1981) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| category | flammable liquid |
| explosive hazard characteristics | blastable when mixed with air |
| flammability hazard characteristics | flammability in case of open flame, high temperature and oxidant; Combustion produces stimulating smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidants and acids |
| fire extinguishing agent | dry powder, dry sand, carbon dioxide, foam |
Last Update：2024-04-10 22:29:15
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