tert-Butanol

ChemicalBook > CAS DataBase List > tert-Butanol

Product Name: tert-Butanol
CAS No.: 75-65-0
Chemical Name: tert-Butanol
Synonyms: TBA;BUTANOL;TERT-BUTYL ALCOHOL;BUTAN-1-OL;2-METHYLPROPAN-2-OL;t-Butanol;2-METHYL-2-PROPANOL;2-Propanol, 2-methyl-;TERTIARY BUTYL ALCOHOL;T-BUTYL ALCOHOL
CBNumber: CB5206388
Molecular Formula: C4H10O
Formula Weight: 74.12
MOL File: 75-65-0.mol

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tert-Butanol Property

Melting point:: 23-26 °C (lit.)
Boiling point:: 83 °C (lit.)
Density: 0.775 g/mL at 25 °C (lit.)
vapor density: 2.55 (vs air)
vapor pressure: 31 mm Hg ( 20 °C)
refractive index: n20/D 1.399(lit.)
Flash point:: 95 °F
storage temp.: Store at +5°C to +30°C.
solubility: water: miscible
pka: 19(at 25℃)
form: Liquid After Melting
color: APHA: ≤20
Relative polarity: 0.389
Odor: Characteristic; camphor-like; pungent.
PH Range: 7
Odor Threshold: 4.5ppm
explosive limit: 2.3-8.0%(V)
Water Solubility: soluble
λmax: λ: 215 nm Amax: 1.00
λ: 230 nm Amax: 0.50
λ: 250 nm Amax: 0.20
λ: 300-350 nm Amax: 0.01
JECFA Number: 85
Merck: 14,1542
BRN: 906698
Henry's Law Constant: 1.22 at 25 °C (static headspace-GC, Merk and Riederer, 1997)
Exposure limits: TLV-TWA 300 mg/m³ (100 ppm) (ACGIH); IDLH 8000 ppm.
Dielectric constant: 7.8（19℃）
Stability:: Stable. Very flammable. Incompatible with strong oxidizing agents, copper, copper alloys, alkali metals, aluminium.
InChIKey: DKGAVHZHDRPRBM-UHFFFAOYSA-N
LogP: 0.350
CAS DataBase Reference: 75-65-0(CAS DataBase Reference)
NIST Chemistry Reference: Ethanol, 1,1-dimethyl-(75-65-0)
EPA Substance Registry System: tert-Butanol (75-65-0)

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Safety

Hazard Codes: Xn,F,T
Risk Statements: 11-20-39/23/24/25-23/24/25-36/37
Safety Statements: 9-16-45-36/37-7-46-26
RIDADR: UN 1120 3/PG 3
WGK Germany: 1
RTECS: EO1925000
Autoignition Temperature: 896 °F
TSCA: Yes
HazardClass: 3
PackingGroup: II
HS Code: 29051410
Hazardous Substances Data: 75-65-0(Hazardous Substances Data)
Toxicity: LD50 orally in rats: 3.5 g/kg (Schaffarzick, Brown)
IDLA: 1,600 ppm

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

H336May cause drowsiness or dizziness

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: BX1805
Product name: tert-Butyl Alcohol
Purity: Meets ACS Specifications GR ACS
Packaging: 1L
Price: $198
Updated: 2024/03/01

Sigma-Aldrich

Product number: BX1805
Product name: tert-Butyl Alcohol
Purity: Meets ACS Specifications GR ACS
Packaging: 20L
Price: $493
Updated: 2024/03/01

Sigma-Aldrich

Product number: BX1805
Product name: tert-Butyl Alcohol
Purity: Meets ACS Specifications GR ACS
Packaging: 4L
Price: $520
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.22264
Product name: tert-Butanol
Purity: EMPLURA?
Packaging: 1L
Price: $94
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.22264
Product name: tert-Butanol
Purity: EMPLURA?
Packaging: 25L
Price: $1060
Updated: 2024/03/01

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tert-Butanol Chemical Properties,Usage,Production

Chemical Properties

tert-Butanol (CH3)3COH is a white crystalline solid or colorless liquid (above 77 °F) with a camphor-like odor (IPCS, 1987a; NIOSH, 2005). It is soluble in water and miscible with alcohol, ether, and other organic solvents (IPCS, 1987a). It is highly flammable and easily ignited by heat, sparks, or flames; vapors may form explosive mixtures with air. Fire and explosion may result from contact with oxidizing agents, strong mineral acids, or strong hydrochloric acid (NIOSH,1992).
tert-Butanol has been used for a variety of other purposes, including as a dehydrating agent and solvent. tert-butanol is a polar organic solvent that is used in such large scale applications as the manufacture of flavors, perfumes, and paint removers. It is also utilized as a denaturant for ethyl alcohol.
Tert-butanol is a metabolite of the gasoline additive methyl tert-butyl ether (MTBE).
tert-Butanol also is used to manufacture methyl methacrylate plastics and flotation devices. Cosmetic and food-related uses include the manufacture of flavors, and, because of its camphor-like aroma, it also is used to create artificial musk, fruit essences, and perfume (HSDB, 2007). It is used in coatings on metal and paperboard food containers (Cal/EPA, 1999) and industrial cleaning compounds, and can be used for chemical extraction in pharmaceutical applications (HSDB, 2007).

Physical properties

tert-Butanol is a colorless liquid or crystals with a camphor-like odor. A detection odor threshold concentration of 2,900 mg/m3 (957 ppmv) was experimentally determined by Dravnieks (1974). In a later study, Nagata and Takeuchi (1990) reported an odor threshold concentration 220 ppbv.

Uses

tert-Butanol is used in the production of tert-butyl chloride, tert-butyl phenol, andisobutylene; in the preparation of artificial musk; and in denatured alcohols.

Uses

tert-Butanol is used as a solvent (e.g., for paints, lacquers, and varnishes); as a denaturant for ethanol and several other alcohols; as an octane booster in gasoline; as a dehydrating agent; as a chemical intermediate in the manufacturing of methyl methacrylate; and in the manufacturing of flotation agents, fruit essences, and perfumes.

Uses

Plastics, lacquers, cellulose esters, fruit essences, perfumes, and chemical intermediates; additive to unleaded gasoline

Production Methods

tert-Butanol is produced as a by-product from the isobutane oxidation process for manufacturing propylene oxide. It is also produced by the acidcatalyzed hydration of isobutylene, a process no longer used in the United States.

Definition

Tert-butanol is a tertiary alcohol alcohol that is isobutane substituted by a hydroxy group at position 2. It has a role as a human xenobiotic metabolite. It derives from a hydride of an isobutane.

General Description

Colorless oily liquid with a sharp alcohol odor. Floats and mixes with water. Produces irritating vapor. Freezing point is 78°F.

Air & Water Reactions

Highly flammable. Water soluble.

Reactivity Profile

Attacks plastics. [Handling Chemicals Safely 1980. p. 236]. Acetyl bromide reacts violently with alcohols or water [Merck 11th ed. 1989]. Mixtures of alcohols with concentrated sulfuric acid and strong hydrogen peroxide can cause explosions. Example: an explosion will occur if dimethylbenzylcarbinol is added to 90% hydrogen peroxide then acidified with concentrated sulfuric acid. Mixtures of ethyl alcohol with concentrated hydrogen peroxide form powerful explosives. Mixtures of hydrogen peroxide and 1-phenylm-2-methyl propyl alcohol tend to explode if acidified with 70% sulfuric acid [Chem. Eng. News 45(43):73 1967; J, Org. Chem. 28:1893 1963]. Alkyl hypochlorites are violently explosive. They are readily obtained by reacting hypochlorous acid and alcohols either in aqueous solution or mixed aqueous-carbon tetrachloride solutions. Chlorine plus alcohols would similarly yield alkyl hypochlorites. They decompose in the cold and explode on exposure to sunlight or heat. Tertiary hypochlorites are less unstable than secondary or primary hypochlorites [NFPA 491 M 1991]. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence [Wischmeyer 1969].

Hazard

Irritant to eyes and skin. Flammable, dan- gerous fire risk. Central nervous system impair- ment. Questionable carcinogen.

Health Hazard

tert-Butanol is more toxic than secbutylalcohol but less toxic than the primaryalcohol. However, its narcotic actionis stronger than that of n-butanol. Inhalationmay cause drowsiness and mild irritationof the skin and eyes. Ingestion may produceheadache, dizziness, and dry skin.Acute oral LD50 value (rats): 3500 mg/kg.

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.

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-sodum alloys. To fight fire, use alcohol foam, CO2, dry chemical. Incompatible with oxidizing materials, H202. See also n-BUTYL ALCOHOL and ALCOHOLS.

Potential Exposure

tert-Butanol is used as solvents for paints, lacquers, varnishes, natural and synthetic resins, gums, vegetable oils, dyes, camphor, and alkaloids. They are also used as an intermediate in the manufacture of pharmaceuticals and chemicals; In the manufacture of artificial leather, safety glass; rubber and plastic cements, shellac, raincoats, photographic films, perfumes; and in plastic fabrication.

Carcinogenicity

There were increased incidences of renal tubule adenoma and carcinoma in male rats, transitional epithelia hyperplasia of the kidney in male and female rats, follicular cell adenoma of the thyroid in female mice, and follicular cell hyperplasia of the thyroid and inflammation and hyperplasia of the urinary bladder in male and female mice. In addition, a slight increase in follicular cell adenoma or carcinoma of the thyroid (combined) in male mice may have been related to exposure to t-butyl alcohol. t-Butyl alcohol was inactive on mouse skin as a complete carcinogen or as a tumor promoter.

Source

Detected in a distilled water-soluble fraction of 94 octane unleaded gasoline at a concentration of 3.72 mg/L (Potter, 1996)

Shipping

UN1120 Butanols, Hazard Class: 3; Labels: 3— Flammable liquid. UN1212 Isobutanol or Isobutyl alcohol, Hazard Class: 3; Labels: 3—Flammable liquid

Purification Methods

tert-Butanol is synthesised commercially by the hydration of 2-methylpropene in dilute H2SO4. Dry it with CaO, K2CO3, CaSO4 or MgSO4, filter and fractionally distil it. Dry further by refluxing with, and distilling from, either magnesium activated with iodine, or small amounts of calcium, sodium or potassium, under nitrogen. Passage through a column of type 4A molecular sieve is another effective method of drying; as well as refluxing with tert-butyl phthalate or succinate. (For method see Ethanol.) Other methods include refluxing with excess aluminium tert-butylate, or standing with CaH2, and distilling as needed. Further purification is achieved by fractional crystallisation by partial freezing, taking care to exclude moisture. tert-Butyl alcohol samples containing much water can be dried by adding *benzene, so that the water distils off as a tertiary azeotrope, b 67.3o. Traces of isobutylene have been removed from dry tert-butyl alcohol by bubbling dry pre-purified nitrogen through for several hours at 40-50o before using. It forms azeotropic mixtures with a large number of compounds. It has also been purified by distillation from CaH2 into Linde 4A molecular sieves which had been activated at 350o for 24hours [Jaeger et al. J Am Chem Soc 101 717 1979]. [Beilstein 1 IV 1609.] Rapid purification: Dry tert-butanol over CaH2 (5% w/v), distil and store it over 3A molecular sieves.

Incompatibilities

tert-Butanol is incompatible with strong acids (including mineral acid), including mineral acids; strong oxidizers or caustics, aliphatic amines; isocyanates, alkali metals (i.e., lithium, sodium, potassium, rubidium, cesium, francium).

Waste Disposal

Incineration, or bury absorbed waste in an approved land fill.

tert-Butanol Preparation Products And Raw materials

Raw materials

Liquefied petroleum ges Ethanol 1,3-Butadiene Isobutylene Benzene 85% tert-butanol Sodium tert-butoxide SULFATE STANDARD

Preparation Products

TERT-BUTYL 4-(HYDROXYMETHYL)PYRIDIN-2-YLCARBAMATE sodium butyl 9(or 10)-(sulphonatooxy)octadecanoate 4-PIPERIDINECARBOXYLIC ACID T-BUTYL ESTER HCL 1-CHLORO-4-ISOCYANOBENZENE 2-tert-Butyl-4,5-dichloro-3-2H-pyridazinone TERT-BUTYL GLYCIDYL ETHER 1-tert-Butyl-3,5-dimethylbenzene tert-Butyl acetate Butoconazole 4-ALLYL-PIPERIDINE-1,4-DICARBOXYLIC ACID MONO-TERT-BUTYL ESTER Butyl stearate tert-Butylferrocene ETHOPERMETHRIN，95% tert-Butyl peroxybenzoate 4-(BROMOMETHYL)-BENZOIC ACID, 1,1-DIMETHYLETHYL ESTER 3-CHLORO-2-HYDROXY-5-(TRIFLUOROMETHYL)PYRIDINE Butylparaben 5-TERT-BUTOXYCARBONYLAMINO-PYRIDINE-3-CARBOXYLIC ACID tert-Butyl peroxypivalate (2-TERT-BUTOXYFORMAMIDO-PYRIDIN-4-YL)METHYL METHANESULFONATE 2-tert-Butyl-4-methylphenol 6-tert-Butyl-m-cresol 5-Bromo-7-azaindole 4-TERT-BUTYL-2,6-DIMETHYL BENZYL ACETATE (R,R)-(+)-HYDROBENZOIN Ethyl 2-(2-aminothiazole-4-yl)-2-(1-tert-butoxycarbonyl-1-methylethoxyimino)acetate TERT-BUTYL 4-(METHOXYCARBONYL)PYRIDIN-2-YLCARBAMATE BENZYL BUTYL ETHER Dispersant CS N-Cbz-L-Glutamic acid 5-tert-butyl ester 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) (2-BROMO-PYRIDIN-3-YL)-CARBAMIC ACID TERT-BUTYL ESTER Dibutyl sebacate Di-tert-butyl peroxide 4-Tert-butyl-2,6-dimethylbenzylchloroide RH-5849(Rhom & Haas 2,4-DI-(TERT-BUTOXY)-5-BROMOPYRIMIDINE TERT-BUTYL ISOTHIOCYANATE 2,4-Dichlorophenoxybutyric acid tert-Butyl peroxy-2-ethylhexanoate

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View Lastest Price from tert-Butanol manufacturers

Jinan Finer Chemical Co., Ltd

Product: tert-Butanol 75-65-0
Price: US $0.00/Kg/Drum
Min. Order: 155KG
Purity: 99.5%
Supply Ability: 5000mt
Release date: 2020-08-21

Henan Fengda Chemical Co., Ltd

Product: tert-Butanolvv 75-65-0
Price: US $50.00-1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2023-12-22

Weijer International Trade (Hebei) Co., Ltd

Product: tert-Butanol 75-65-0
Price: US $499.00/KG
Min. Order: 1KG
Purity: >99%
Supply Ability: 50000kg/Month
Release date: 2023-03-16

75-65-0, tert-ButanolRelated Search:

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t-Butyl Alcohol 〔2-Methyl-2-propanol〕

tert-Butanol EMPLURA.

tert-Butanol for analysis EMSURE ACS,Reag. Ph Eur

tert-ButanolACS reagent, ≥ 99.0% (GC)

tert-Butanol, extra pure, 99.5%

tert-Butanol, for analysis ACS

tert-BUTYL ALCOHOL REAGENT (ACS)

tert-Butanol 2-Methyl-2-propanol

tert-Butanol, 99.5%, for analysis

TERT-BUTANOL FOR ANALYSIS EMSURE

2-methyl-2-propanol tert-butanol

2-methyl-2-propanol solution

tert-butanol solution

t-Butanol [Hplc/Prep]

tert-Butyl Alcohol, GR ACS

tert-Butanol, ACS reagent

tert-Butanol, extra pure, 99.5% 1LT

tert-Butanol, for analysis ACS 1LT

tert-Butyl alcohol, anhydrous, 99.5%

tert-Butyl alcohol, anhydrous, 99.5%, packaged under Argon in resealable CheMSeal^t bottles

tert-Butanol 99+%

tert-Butanol, SuperDry, J&KSeal

tert-Butanol, 99.5%, SpcDry, Water≤50 ppM (by K.F.), SpcSeal

butanoltertiaire

butanoltertiaire(french)

Methanol, trimethyl-

Methyl-2 propanol-2

NCI-C55367

tBu-OH

tButanol

t-Butanol

t-Butyl alchohol

t-Butyl hydroxide

t-butylhydroxide

tert.-Butylalhohol

tert-Butyl hydroxide

tert-C4H9OH

ALCOHOL C4

ALCOHOL SOLVENT

ALCOHOL SOLVENT MIXED SOL'N

BUTYLALCOHOL

BUTYL ALCOHOL, N

BUTYL ALCOHOL, NORMAL

BUTYL HYDROXIDE

FEMA 2178

HP-TBA

BUTANOL

BUTAN-1-OL

BUTANE-1-OL

2-Methyl propanol-2-ol

N-BUTONOL

N-BUTHANOL

BUTANOL IN BULK

TER-BUTANOL

N.BUTANOL.SOLVANT

tert-Butanlo

T-BuTyl alcohol (T-BuTanol)

T-BUTANOL, 1000MG, NEAT