2,3-Dimethylbutane
2,3-Dimethylbutane
CAS: 79-29-8
Molecular Formula: C6H14
2,3-Dimethylbutane - Names and Identifiers
| Name | 2,3-Dimethylbutane |
| Synonyms | Diisopropyl DIISOPROPYL Biisopropyl DIISOPROPANE 2,3-Dimethylbutane 2,3-DIMETHYLBUTANE dimethyl-2,3butane butane,2,3-dimethyl- 2,3-DIMETHYLBUTANE, STANDARD FOR GC |
| CAS | 79-29-8 |
| EINECS | 201-193-6 |
| InChI | InChI=1/C6H14/c1-5(2)6(3)4/h5-6H,1-4H3 |
| InChIKey | ZFFMLCVRJBZUDZ-UHFFFAOYSA-N |
2,3-Dimethylbutane - Physico-chemical Properties
| Molecular Formula | C6H14 |
| Molar Mass | 86.18 |
| Density | 0.662g/mLat 25°C(lit.) |
| Melting Point | -129 °C |
| Boling Point | 58°C(lit.) |
| Flash Point | −28°F |
| Water Solubility | Soluble in water (1mg/ml @22°C), DMSO, ethanol, acetone. |
| Solubility | In methanol: 495, 593, 760, and 1,700 g/L at 5, 10, 15, and 20 °C, respectively. Miscible at highertemperatures (Kiser et al., 1961). |
| Vapor Presure | 7.41 psi ( 37.7 °C) |
| Vapor Density | 3 (vs air) |
| Appearance | Liquid |
| Color | Colorless |
| Exposure Limit | ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and1,000 ppm, respectively (adopted). |
| BRN | 1730737 |
| pKa | >14 (Schwarzenbach et al., 1993) |
| Storage Condition | Flammables area |
| Stability | Stable. Flammable. Readily forms explosive mixtures with air. Note low flash point. Incompatible with strong oxidizing agents, oxygen. |
| Explosive Limit | ~7.7% |
| Refractive Index | n20/D 1.375(lit.) |
| Use | Used as standard substance for chromatographic analysis |
2,3-Dimethylbutane - Risk and Safety
| Risk Codes | R11 - Highly Flammable R65 - Harmful: May cause lung damage if swallowed R67 - Vapors may cause drowsiness and dizziness R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R38 - Irritating to the skin |
| Safety Description | S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. S33 - Take precautionary measures against static discharges. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S29 - Do not empty into drains. S9 - Keep container in a well-ventilated place. |
| UN IDs | UN 2457 3/PG 2 |
| WGK Germany | 3 |
| RTECS | EJ9350000 |
| TSCA | Yes |
| HS Code | 29011000 |
| Hazard Class | 3 |
| Packing Group | II |
2,3-Dimethylbutane - Reference Information
| olfactory Threshold | 0.42ppm |
| Henry's Law Constant | 1.28(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981) |
| LogP | 3.42 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | is used as a chromatographic reagent standard. used as standard substance for chromatographic analysis |
| production method | is formed by the reaction of ethylene and isobutane. Purification method the unsaturated compound was removed by washing with concentrated sulfuric acid. Moisture may be removed by calcium chloride, phosphorus pentoxide, sodium metal, or a solid desiccant. |
| category | flammable liquid |
| toxicity grade | micro-toxicity |
| Acute toxicity | oral-rat LD50: 28710 mg/kg |
| explosive hazard characteristics | explosive when mixed with air |
| flammability hazard characteristics | in case of open flame, high temperature, flammable oxidant; Combustion stimulus smoke |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Stored separately from oxidants and acids |
| extinguishing agent | dry powder, dry sand, carbon dioxide, foam |
| Occupational Standard | TWA 1800 mg/m3; Tel 3600 mg/m3 |
| spontaneous combustion temperature | 788 ° F. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:52:54
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