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        tert-Butanol

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        tert-Butanol

        EINECS 200-889-7
        CAS No. 75-65-0 Density 0.805 g/cm3
        Solubility soluble in water Melting Point 23-26 °C(lit.)
        Formula C4H10O Boiling Point 84.603 °C at 760 mmHg
        Molecular Weight 74.12 Flash Point 11.667 °C
        Transport Information UN 1120 3/PG 3 Appearance clear colourless liquid after melting
        Safety 9-16-45-36/37-7 Risk Codes 11-20-39/23/24/25-23/24/25
        Molecular Structure Molecular Structure of 75-65-0 (tert-Butanol) Hazard Symbols HarmfulXn, FlammableF, ToxicT
        Synonyms

        tert-Butylalcohol (8CI);1,1-Dimethylethanol;2-Methyl-2-propanol;Trimethylcarbinol;Trimethylmethanol;t-Butanol;

         

        tert-Butanol Chemical Properties

        Product Name: tert-Butanol (CAS NO.75-65-0)

        Molecular Formula: C4H10O
        Molecular Weight: 74.12g/mol
        Mol File: 75-65-0.mol
        EINECS: 200-751-6
        Melting Point: 23-26 °C(lit.)
        Boiling point: 117.7 °C at 760 mmHg
        Storage Temperature: 2-8°C
        Flash Point: 35 °C
        Density: 0.805 g/cm3
        Refractive index: n20/D 1.399(lit.)
        Water Solubility: soluble
        Stability: Stable. Very flammable. Incompatible with strong oxidizing agents, copper, copper alloys, alkali metals, aluminium.
        Index of Refraction: 1.395 
        Molar Refractivity: 22.11 cm3 
        Molar Volume: 92 cm3 
        Surface Tension: 26 dyne/cm
        Enthalpy of Vaporization: 43.29 kJ/mol
        Vapour Pressure: 2 mmHg at 25°C
        XLogP3-AA: 0.5
        H-Bond Donor: 1
        H-Bond Acceptor: 1
        Structure Descriptors of tert-Butanol (CAS NO.75-65-0):
          IUPAC Name: 2-methylpropan-2-ol
          Canonical SMILES: CC(C)(C)O
          InChI: InChI=1S/C4H10O/c1-4(2,3)5/h5H,1-3H3 
          InChIKey: DKGAVHZHDRPRBM-UHFFFAOYSA-N
        Product Categories: Organics

        tert-Butanol Uses

         tert-Butanol (CAS NO.75-65-0) is used as a solvent, as a denaturant for ethanol,  as an octane booster for gasoline, as an ingredient in paint removers,as an oxygenate gasoline additive, and as an intermediate in the synthesis of other chemical commodities such as MTBE, TBHP, ETBE, other flavors and perfumes.

        tert-Butanol Production

        t-Butyl alcohol (75-65-0) is produced by the hydration of iso-butene. The favored tertiary carbocation intermediate limits the possible alcohols produced to only this one.
                   (CH3)2C=CH2 → (CH3)3COH

        tert-Butanol Toxicity Data With Reference

        Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
        frog LDLo parenteral 12gm/kg (12000mg/kg) PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE

        BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
        Archives Internationales de Pharmacodynamie et de Therapie. Vol. 50, Pg. 296, 1935.
        guinea pig LD50 skin > 10mL/kg (10mL/kg) SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"

        SKIN AND APPENDAGES (SKIN): HAIR: OTHER
        National Technical Information Service. Vol. OTS0556680,
        mouse LD50 intraperitoneal 399mg/kg (399mg/kg) LIVER: OTHER CHANGES Research Communications in Chemical Pathology and Pharmacology. Vol. 26, Pg. 75, 1979.
        mouse LD50 intravenous 1538mg/kg (1538mg/kg)   Archives Internationales de Pharmacodynamie et de Therapie. Vol. 135, Pg. 330, 1962.
        rabbit LD50 oral 3559mg/kg (3559mg/kg) SENSE ORGANS AND SPECIAL SENSES: CORNEAL DAMAGE: EYE

        LUNGS, THORAX, OR RESPIRATION: DYSPNEA

        CARDIAC: PULSE RATE
        Industrial Medicine and Surgery. Vol. 41, Pg. 31, 1972.
        rabbit LD50 skin > 2gm/kg (2000mg/kg) SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE" National Technical Information Service. Vol. OTS0572351,
        rat LC50 inhalation > 10000ppm/4H (10000ppm) BEHAVIORAL: ATAXIA

        LUNGS, THORAX, OR RESPIRATION: DYSPNEA

        LUNGS, THORAX, OR RESPIRATION: PULMONARY EMBOLI
        National Technical Information Service. Vol. OTS0572351,
        rat LD50 oral 2743mg/kg (2743mg/kg) SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE

        LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION

        GASTROINTESTINAL: OTHER CHANGES
        National Technical Information Service. Vol. OTS0572351,

        tert-Butanol Consensus Reports

        Community Right-To-Know List. Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

        tert-Butanol Safety Profile

        Moderately toxic by ingestion, intravenous, and intraperitoneal routes. An experimental teratogen. Other experimental reproductive effects. Dangerous fire hazard when exposed to heat or flame. Moderately explosive in the form of vapor when exposed to flame. Ignites on contact with potassium-sodium alloys. To fight fire, use alcohol foam, CO2, dry chemical. Incompatible with oxidizing materials, H2O2. See also n-BUTYL ALCOHOL and ALCOHOLS.
        Safety Information of tert-Butanol (CAS NO.75-65-0):
        Hazard Codes: XnHarmful,FFlammable,TToxic
        Risk Statements: 11-20-39/23/24/25-23/24/25  
        R11: Highly flammable. 
        R20: Harmful by inhalation. 
        R39: Danger of very serious irreversible effects. 
        R23/24/25: Toxic by inhalation, in contact with skin and if swallowed.
        Safety Statements: 9-16-45-36/37-7
        S9: Keep container in a well-ventilated place. 
        S16: Keep away from sources of ignition. 
        S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
        S36/37: Wear suitable protective clothing and gloves. 
        S7: Keep container tightly closed.
        RIDADR: UN 1120 3/PG 3
        WGK Germany: 1
        RTECS: EO1925000
        HazardClass: 3
        PackingGroup: II
        HS Code: 29051410

        tert-Butanol Standards and Recommendations

        OSHA PEL: TWA 100 ppm; STEL 150 ppm
        ACGIH TLV: TWA 100 ppm; Not Classifiable as a Human Carcinogen
        DFG MAK: 100 ppm (310 mg/m3)

        tert-Butanol Analytical Methods

        For occupational chemical analysis use NIOSH: Alcohols I, 1400.

        tert-Butanol Specification

         tert-Butanol , its CAS NO. is 75-65-0, the synonyms are 1,1-Dimethylethanol ; 2-Methyl-2-propanol ; 2-Propanol, 2-methyl- ; Alcool butylique tertiaire ; Butanol tertiaire ; Trimethyl carbinol ; Trimethyl methanol ; Trimethylmethanol ; t-Butanol ; t-Butyl alcohol ; t-Butyl hydroxide ; tert-Butyl alcohol ; tertiary-Butanol ; Methyl-2-propanol .

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