Methanesulfonic Acid
Products Description of Methanesulfonic acid CAS#75-75-2
Hexane is a straight-chain saturated aliphatic hydrocarbon that appears as a colorless, volatile liquid with a characteristic gasoline-like odor. It is produced from crude oil via cracking and fractional distillation processes. Its key physical properties include a molecular weight of 86.2, a melting point of –95°C, a boiling point of 68.95°C, and a vapor density of 2.97.
Nearly insoluble in water, hexane is highly soluble in organic solvents such as chloroform, ether, and ethanol. Thanks to its excellent solvency, it is widely used in industrial settings—including the production of rubber, pharmaceuticals, perfumes, footwear, leather goods, textiles, furniture, and paints.
In recent years, hexane has also found application as a diluent in adhesive manufacturing and as an organic cleaning agent. However, improper handling or prolonged exposure has resulted in cases of occupational hexane poisoning, underscoring the necessity of strict safety protocols in industrial environments.
Parameters
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 | n20/D 1.388 |
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) |
color | Colorless |
Specific Gravity | 0.660 (20/4℃) |
Odor | Mild gasoline-like odor detectable at 65 to 248 ppm |
Relative polarity | 0.009 |
PH | 7 |
Odor Threshold | 1.5ppm |
explosive limit | 1.0-8.1%(V) |
Water Solubility | insoluble |
λmax | λ: 200 nm Amax: ≤0.70 |
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 | TLV-TWA 50 ppm (～175 mg/m3) (ACGIH), 500 ppm (～1750 mg/m3) (OSHA); IDLH 5000 ppm (NIOSH). |
Stability: | Stable. Incompatible with oxidizing agents, chlorine, fluorine, magnesium perchlorate. Highly flammable. Readily forms explosive mixtures with air. Note low flash point. |
InChIKey | VLKZOEOYAKHREP-UHFFFAOYSA-N |
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 |
RIDADR | UN 3295 3/PG 2 |
OEB | A |
OEL | TWA: 50 ppm (180 mg/m3) |
WGK Germany | 3 |
RTECS | MN9275000 |
F | 3-10 |
Autoignition Temperature | 225 °C |
TSCA | Yes |
HazardClass | 3 |
PackingGroup | II |
HS Code | 29011000 |
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) |
IDLA | 1,100 ppm [10% LEL] |
Product Application of Methanesulfonic acid CAS#75-75-2
n-Hexane is a major component of petroleum ether, gasoline, and rubber solvents. It serves as a solvent for adhesives and vegetable oils, and is also utilized in organic analysis as well as the denaturation of alcohol
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