Hexane #CAS110-54-3
Hexane is a highly flammable, colorless, volatileliquid with a gasoline-like odor. The water/odor threshold is0.0064 mg/L and the air/odor threshold is 230- 875 mg/m'Molecular weight= 86.20; Specific gravity (H2O:1)= 0.66; .Boiling point = 68.9℃; FreezingMelting point= -139.49C; .Relative vapordensity (air= 1)= 3.0; V aporpressure = 124 mmHg at 20℃; Flash point=一21.6℃ (cc);Autoignition temperature = 225℃.Explosivelimits: .LEL= 1.1%， UEL= 7.5%. Hazard Identification (basedon NFPA-704 M Rating System): Health 1, Flammability3,Reactivity 0.Practically insolubleinwater;solubility = 0.002%.
Application of Hexane
Determining refractive index of minerals; filling for thermometers instead of mercury, usually with a blue or red dye; extraction solvent for oilseed processing.
Suitable for HPLC, spectrophotometry, environmental testing.n-Hexane is a chief constituent of petroleumether, gasoline, and rubber solvent. It is usedas a solvent for adhesives, vegetable oils,and in organic analysis, and for denaturingalcohol.
| Hexane Chemical Properties |
| Melting point | -95 °C |
| Boiling point | 68.95 °C(lit.) |
| density | 0.659 g/mL at 25 °C(lit.) |
| vapor density | 3.5 (vs air) |
| vapor pressure | 40 mm Hg ( 20 °C) |
| refractive index | n |
| Fp | 30 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | Very soluble in ethanol, ethyl ether and chloroform. |
| form | Liquid |
| pka | >14 (Schwarzenbach et al., 1993) |
| Specific Gravity | 0.660 (20/4℃) |
| color | Colorless |
| Odor | Mild gasoline-like odor detectable at 65 to 248 ppm |
| PH | 7 |
| Relative polarity | 0.009 |
| explosive limit | 1.0-8.1%(V) |
| Odor Threshold | 1.5ppm |
| Water Solubility | insoluble |
| Thermal Conductivity | 0.12 W/(m·K) at 25 ℃ |
| λmax | λ: 200 nm Amax: ≤0.70 λ: 225 nm Amax: ≤0.10 λ: 250 nm Amax: ≤0.01 |
| Merck | 14,4694 |
| BRN | 1730733 |
| Henry's Law Constant | 0.238, 0.413, 0.883, 0.768, and 1.56 at 10, 15, 20, 25, and 30 °C, respectively (EPICS, Ashworth et al., 1988) |
| Dielectric constant | 2.0（-90℃） |
| Exposure limits | ACGIH:TLV-TWA 50 ppm (176 mg/m3) OSHA:PEL-TWA 500 ppm (1800 mg/m3) NIOSH:REL-TWA 50 ppm |
| Stability: | Stable. Incompatible with oxidizing agents, chlorine, fluorine, magnesium perchlorate. Highly flammable. Readily forms explosive mixtures with air. Note low flash point. |
| Cosmetics Ingredients Functions | SOLVENT VISCOSITY CONTROLLING |
| InChI | 1S/C6H14/c1-3-5-6-4-2/h3-6H2,1-2H3 |
| InChIKey | VLKZOEOYAKHREP-UHFFFAOYSA-N |
| SMILES | CCCCCC |
| LogP | 4 at 20℃ and pH7 |
| Surface tension | 18.52mN/m at 293.15K |
| CAS DataBase Reference | 110-54-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Hexane(110-54-3) |
| EPA Substance Registry System | Hexane (110-54-3) |
| Safety Information |
| Hazard Codes | F,Xn,N |
| Risk Statements | 11-38-50/53-65-67-62-51/53-48/20-36/37/38 |
| Safety Statements | 9-16-29-33-60-61-62-36/37-45-36/37/39-53-26 |
| OEB | A |
| OEL | TWA: 50 ppm (180 mg/m3) |
| RIDADR | UN 1208 (HEXANES) |
| WGK Germany | 3 |
| RTECS | MN9275000 |
| F | 3-10 |
| Autoignition Temperature | 225 °C |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29011000 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Aquatic Chronic 2 Asp. Tox. 1 Flam. Liq. 2 Repr. 2 Skin Irrit. 2 STOT RE 2 Inhalation STOT SE 3 |
| Hazardous Substances Data | 110-54-3(Hazardous Substances Data) |
| Toxicity | LC50 (4 hr) in mice by inhalation: 48000 ppm; LD50 orally in rats: 32.0 g/kg (Couri, Milks) |
| IDLH | 1,100 ppm [10% LEL] |
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