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        Hexane

        Hexane
        Hexane structure
        CAS No.
        110-54-3
        Chemical Name:
        Hexane
        Synonyms
        Esani;OXFORD;HEXANE;Heksan;HEXANES;Hexanen;n-C6H14;n-Hexan;dipropyl;1-HEXANE
        CBNumber:
        CB1852811
        Molecular Formula:
        C6H14
        Formula Weight:
        86.18
        MOL File:
        110-54-3.mol

        Hexane 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 
        n20/D 1.388
        Flash point:
        30 °F
        storage temp. 
        Store at RT.
        solubility 
        Very soluble in ethanol, ethyl ether and chloroform.
        pka
        >14 (Schwarzenbach et al., 1993)
        form 
        Liquid
        Specific Gravity
        0.660 (20/4℃)
        color 
        Colorless
        Odor
        Mild gasoline-like odor detectable at 65 to 248 ppm
        Relative polarity
        0.009
        Viscosity
        0.31 mPas 20 deg C
        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)
        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
        FDA 21 CFR
        173.270; 175.105; 175.320; 176.200; 73.345; 73.615
        CAS DataBase Reference
        110-54-3(CAS DataBase Reference)
        Substances Added to Food (formerly EAFUS)
        HEXANE
        EWG's Food Scores
        4-7
        FDA UNII
        2DDG612ED8
        NIST Chemistry Reference
        Hexane(110-54-3)
        Proposition 65 List
        n-Hexane
        EPA Substance Registry System
        Hexane (110-54-3)
        SAFETY
        • Risk and Safety Statements
        Symbol(GHS) 
        GHS02,GHS07,GHS08,GHS09
        Signal word  Danger
        Hazard statements  H319-H335+H336-H361-H372-H401-H225-H304-H315-H336-H361f-H373-H411
        Precautionary statements  P202-P233-P240-P241+P242+P243-P264-P270-P271-P301+P310+P331-P302+P352+P332+P313+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P403+P233-P261-P281-P260-P280-P370+P378-P403+P235-P301+P310a-P303+P361+P353-P405-P501a-P201-P210-P273-P301+P310-P308+P313-P331
        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
        WGK Germany  3
        RTECS  MN9275000
        3-10
        Autoignition Temperature 225 °C
        TSCA  Yes
        HazardClass  3
        PackingGroup  II
        HS Code  29011000
        Toxicity LC50 (4 hr) in mice by inhalation: 48000 ppm; LD50 orally in rats: 32.0 g/kg (Couri, Milks)
        NFPA 704
        3
        0

        Hexane price More Price(128)

        Manufacturer Product number Product description CAS number Packaging Price Updated Buy
        Sigma-Aldrich 139386 Hexane ReagentPlus , ≥99% 110-54-3 100ml $61.8 2019-12-02 Buy
        Sigma-Aldrich 139386 Hexane ReagentPlus , ≥99% 110-54-3 500ml $64.6 2019-12-02 Buy
        TCI Chemical H0394 Hexane [for Spectrophotometry] >96.0%(GC) 110-54-3 100mL $38 2019-12-02 Buy
        TCI Chemical H0490 Hexane [for HPLC Solvent] >96.0%(GC) 110-54-3 500mL $97 2019-12-02 Buy
        Alfa Aesar 032454 n-Hexane, Spectrophotometric Grade, 95+% 110-54-3 *4x1L $147 2019-12-02 Buy

        Hexane Chemical Properties,Uses,Production

        Chemical Properties

        n-Hexane is a highly flammable liquid, usually isolated from crude oil, and has extensive industrial applications as a solvent in adhesive bandage factories and other industries.
        n-Hexane
        It is highly toxic, triggering several adverse health effects, i.e., nausea, skin irritation, dizziness, numbness of limbs, CNS depression, vertigo, and respiratory tract irritation to animals and humans. Occupational exposure of industrial workers has demonstrated motor polyneuropathy. Workers associated with long-term glue sniffi ng showed adverse effects in the form of degeneration of axons and nerve terminals.

        Chemical Properties

        n-Hexane is a highly flammable, colorless, volatile liquid with a gasoline-like odor. The water/odor threshold is 0.0064 mg/L and the air/odor threshold is 230 875 milligram per cubic meter.

        Physical properties

        Clear, colorless, very flammable liquid with a faint, gasoline-like odor. An odor threshold concentration of 1.5 ppmv was reported by Nagata and Takeuchi (1990).

        Uses

        Determining refractive index of minerals; filling for thermometers instead of mercury, usually with a blue or red dye; extraction solvent for oilseed processing.

        Uses

        Suitable for HPLC, spectrophotometry, environmental testing

        Uses

        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.

        Definition

        ChEBI: An unbranched alkane containing six carbon atoms.

        General Description

        Clear colorless liquids with a petroleum-like odor. Flash points -9°F. Less dense than water and insoluble in water. Vapors heavier than air. Used as a solvent, paint thinner, and chemical reaction medium.

        Air & Water Reactions

        Highly flammable. Insoluble in water.

        Reactivity Profile

        HEXANE may be sensitive to light. Hexane may also be sensitive to prolonged exposure to heat. Hexane can react vigorously with oxidizing materials. This would include compounds such as liquid chlorine, concentrated O2, sodium hypochlorite and calcium hypochlorite. Hexane is also incompatible with dinitrogen tetraoxide. Hexane will attack some forms of plastics, rubber and coatings. .

        Hazard

        Flammable, dangerous fire risk.

        Health Hazard

        n-Hexane is a respiratory tract irritant andat high concentrations a narcotic. Its acutetoxicity is greater than that of n-pentane.Exposure to a concentration of 40,000 ppmfor an hour caused convulsions and death inmice. In humans a 10-minute exposure toabout 5000 ppm may produce hallucination,distorted vision, headache, dizziness, nausea,and irritation of eyes and throat. Chronicexposure to n-hexane may cause polyneuritis.
        The metabolites of n-hexane injected inguinea pigs were reported as 2,5- hexanedioneand 5-hydroxy-2-hexanone, which arealso metabolites of methyl butyl ketone(DiVincenzo et al. 1976). Thus methyl butylketone and n- hexane should have similartoxicities. The neurotoxic metabolite, 2,5-hexanedione, however, is produced considerablyless in n-hexane. However, in the caseof hexane, the neurotoxic metabolite 2,5-hexanedione is produced to a much lesserextent. Continuous exposure to 250 ppmn-hexane produced neurotoxic effects in animals. Occupational exposure to 500 ppmmay cause polyneuropathy (ACGIH 1986).
        Inhalation of n-hexane vapors have shownreproductive effects in rats and mice.

        Flammability and Explosibility

        Hexane is extremely flammable (NFPA rating = 3), and its vapor can travel a considerable distance to an ignition source and "flash back." Hexane vapor forms explosive mixtures with air at concentrations of 1.1 to 7.5 % (by volume).
        Hydrocarbons of significantly higher molecular weight have correspondingly higher vapor pressures and therefore present a reduced flammability hazard. Carbon dioxide or dry chemical extinguishers should be used for hexane fires.

        Chemical Reactivity

        Reactivity with Water: No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

        Potential Exposure

        n-Hexane is industrial chemical, emul sifier, in manufacture of plastics, resins; as a solvent, par ticularly in the extraction of edible fats and oils; as a laboratory reagent; and as the liquid in low temperature thermometers. Technical and commercial grades consist of 45 85% hexane, as well as cyclopentanes, isohexane, and 1% to 6% benzene.

        Carcinogenicity

        Male rabbits exposed to 3000 ppm hexane (8 h/day, 6 days/week for 24 weeks) developed papillary proliferation of nonciliated bronchiolar cells. No tumors were found in mice painted with hexane and croton oil as cocarcinogen, presumably for the lifetime of each animal. Hexane is inactive as a tumorpromoting agent.

        Source

        In diesel engine exhaust at a concentration of 1.2% of emitted hydrocarbons (quoted, Verschueren, 1983).
        A constituent in gasoline. Harley et al. (2000) analyzed the headspace vapors of three grades of unleaded gasoline where ethanol was added to replace methyl tert-butyl ether. The gasoline vapor concentrations of hexane in the headspace were 4.31 wt % for regular grade, 3.74.8 wt % for midgrade, and 2.3 wt % for premium grade.
        Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 1.82 and 268 mg/km, respectively (Schauer et al., 2002).

        Environmental Fate

        Biological. Hexane may biodegrade in two ways. The first is the formation of hexyl hydroperoxide, which decomposes to 1-hexanol followed by oxidation to hexanoic acid. The other pathway involves dehydrogenation to 1-hexene, which may react with water giving 1-hexanol (Dugan, 1972). Microorganisms can oxidize alkanes under aerobic conditions (Singer and Finnerty, 1984). The most common degradative pathway involves the oxidation of the terminal methyl group forming 1-hexanol. The alcohol may undergo a series of dehydrogenation steps forming a hexanal followed by oxidation to form hexanoic acid. The fatty acid may then be metabolized by β-oxidation to form the mineralization products, carbon dioxide and water (Singer and Finnerty, 1984).
        Photolytic. An aqueous solution irradiated by UV light at 50 °C for 1 d resulted in a 50.51% yield of carbon dioxide (Knoevenagel and Himmelreich, 1976). Synthetic air containing gaseous nitrous acid and exposed to artificial sunlight (λ = 300–450 nm) photooxidized hexane into two isomers of hexyl nitrate and peroxyacetal nitrate (Cox et al., 1980).
        Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor.

        storage

        hexane should be used only in areas free of ignition sources, and quantities greater than 1 liter should be stored in tightly sealed metal containers in areas separate from oxidizers.

        Shipping

        UN1208 Hexanes, Hazard Class: 3; Labels: 3-Flammable liquid.

        Purification Methods

        Purify as for n-heptane. Modifications include the use of chlorosulfonic acid or 35% fuming H2SO4 instead of conc H2SO4 in washing the alkane, and final drying and distilling from sodium hydride. Unsaturated impurities can be removed by shaking the hexane with nitrating acid (58% H2SO4, 25% conc HNO3, 17% water, or 50% HNO3, 50% H2SO4), then washing the hydrocarbon layer with conc H2SO4, followed by H2O, drying, and distilling over sodium or n-butyl lithium. It can also be purified by distillation under nitrogen from sodium benzophenone ketyl solubilised with tetraglyme. Also purify it by passage through a silica gel column followed by distillation [Kajii et al. J Phys Chem 91 2791 1987]. It is a FLAMMABLE liquid and a possible nerve toxin. [Beilstein 1 IV 338.] Rapid purification: Distil, discarding the first forerun and stored over 4A molecular sieves.

        Incompatibilities

        May form explosive mixture with air. Contact with strong oxidizers may cause fire and explo sions. Contact with dinitrogen tetraoxide may explode @ 28℃.Attacks some plastics, rubber and coatings. May accumulate static electrical charges, and may cause ignition of its vapors.

        Waste Disposal

        Dissolve or mix the material with a combustible solvent and burn in a chemical incinera tor equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

        Hexane Preparation Products And Raw materials

        Raw materials

        Preparation Products


        Hexane Suppliers

        Global( 361)Suppliers
        Supplier Tel Fax Email Country ProdList Advantage
        Jilin beihua fine chemical co. LTD
        gu-yanhua@163.com CHINA 2 58
        Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333-801
        021-50323701 market@aladdin-e.com China 24984 65
        Shanghai QianYan Bio-technology Co., Ltd 400-887-6760
        orders@biochemsafebuy.com China 9966 55
        Aikon International Limited 025-288175-
        (5)02557626880 cfding@aikonchem.com China 12175 58
        Shanghai heller chemical technology co., ltd.
        3300324741@qq.com China 136 58
        J & K SCIENTIFIC LTD. 010-82848833- ;010-82848833-
        86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
        Meryer (Shanghai) Chemical Technology Co., Ltd. 21-61259100-
        86-21-61259102 sh@meryer.com China 40268 62
        Alfa Aesar 400-610-6006; 021-67582000
        021-67582001/03/05 saleschina@alfa-asia.com China 30163 84
        TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
        021-67121385 Sales-CN@TCIchemicals.com China 24555 81
        Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820
        86 (10) 60270825 dtftchem@sina.com China 3393 62

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        View Lastest Price from Hexane manufacturers

        Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
        2019-11-21 Hexane
        110-54-3
        US $100.00 / KG 1KG 99% 1 Ton/Tons per Week Hexane CAS 110-54-3 Hebei Xibaijie Biotechnology Co., Ltd.
        2018-12-17 Hexane
        110-54-3
        US $1.00 / kg 1kg 99% 100KG career henan chemical co

        Hexane Spectrum


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