Methanesulfonic Acid
CAS Number: 75-75-2
Chemical Formula: CH4O3S
Synonyms:
METHANE SULFONIC ACID 70%
acidemethanesulfonique
kyselinamethansulfonova
Appearance: Colorless transparent liquid
HS Code: 29011000
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of Methanesulfonic acid CAS#75-75-2
Hexane, a straight-chain saturated aliphatic hydrocarbon, is a colorless, volatile liquid with a characteristic gasoline-like odor. It is derived from crude oil through cracking and fractional distillation. Hexane has 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.
While it is nearly insoluble in water, hexane dissolves readily in organic solvents such as chloroform, ether, and ethanol. Due to its excellent solvency properties, hexane is widely used in industrial applications including the manufacturing of rubber, pharmaceuticals, perfumes, footwear, leather goods, textiles, furniture, and paints.
In recent years, hexane has also been utilized as a diluent in adhesive production and as an organic cleaning agent. However, improper handling or prolonged exposure has led to cases of occupational hexane poisoning, highlighting the need for stringent safety measures 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 | 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) |
| 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 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 | 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 chief constituent of petroleumether, gasoline, and rubber solvent. It is usedas a solvent for adhesives, vegetable oils,and in organic analysis, and for denaturingalcohol.
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