625-16-1

Basic information

• Product Name: T-PENTYL ACETATE
• Synonyms: 2-methylbutan-2-yl acetate;2-methylbutan-2-yl ethanoate;2-Butanol, 2-methyl-, acetate;Acetic acid, 1,1-dimethylpropyl ester;CH3C(O)OC(CH3)2CH2CH3;tert-Pentyl Acetate;tert-Pentyl Alcohol, acetate;T-PENTYL ACETATE
• CAS NO: 625-16-1
• Molecular Formula: C₇H₁₄O₂
• Molecular Weight: 130.18
• Mol File: 625-16-1.mol
• Article Data: 3

Chemical Properties

• Melting Point: -74.65°C (estimate)
• Boiling Point: 123.5°C
• Flash Point: 25.4°C
• Appearance: /
• Density: 0.8845 (estimate)
• Vapor Pressure: 14.5mmHg at 25°C
• Refractive Index: 1.3995
• CAS DataBase Reference: T-PENTYL ACETATE(CAS DataBase Reference)
• NIST Chemistry Reference: T-PENTYL ACETATE(625-16-1)
• EPA Substance Registry System: T-PENTYL ACETATE(625-16-1)

Safety Data

• RIDADR: 1104
• HazardClass: 3.2
• PackingGroup: III
• Hazardous Substances Data: 625-16-1(Hazardous Substances Data)

Usage

General Description

Colorless to yellow watery liquid with a weak odor of bananas. Floats on water. Produces irritating vapor.

Air & Water Reactions

Highly flammable.

Reactivity Profile

T-PENTYL ACETATE is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.

Health Hazard

INHALATION AND INGESTION: Irritates the mucous membrane, depresses the central nervous system and is narcotic. Damage to kidney, liver, and lung can occur. Ingestion may irritate gastro-intestinal tract. EYES: Irritation. SKIN: Irritation.

InChI:InChI=1/C7H14O2/c1-5-7(3,4)9-6(2)8/h5H2,1-4H3

Upstream product

• 563-46-2 2-Methyl-1-butene 
• 64-19-7 acetic acid 
• 90886-07-0 C₃₂H₃₂N⁽¹⁺⁾*BF₄^(1-) 
• 1630-94-0 1,1-dimethylcyclopropane 
• 1186-52-3 tetradeuterioacetic acid 
• 758-12-3 deuteroacetic acid 
• 1808-38-4 bis(tert-butylacetyl)peroxide 

Downstream Products

• 513-35-9 2-methyl-but-2-ene 
• 563-46-2 2-Methyl-1-butene 
• 594-36-5 2-methyl-2-butylchloride 
• 64-19-7 acetic acid 
• 93-92-5 1-phenylethyl acetate 
• 1426401-76-4 [¹⁵N]-2-methyl-2-butyl 3-(4-fluorophenyl)-3-phenylaminopropanoate 
• 1426401-75-3 2-methyl-2-butyl 3-(4-fluorophenyl)-3-phenylaminopropanoate 

Relevant articles and documents

Determination and interpretation of second order rate constants for the addition of hydrogen halides to alkenes

An extensive range of second order rate constants for the addition of hydrogen halides to alkenes in 98% v/v ethanoic acid (acetic acid)-water have been obtained by conductivity measurements. The rate constants are in the expected order of HF HCl HBr HI. The rates with different alkenes cannot be rationalised solely by a consideration of carbocation stability and it has been necessary to consider steric effects in order to explain the observed order.

Kinetics and Mechanisms of Nucleophilic Displacement with Heterocycles as Leaving Groups. 17. Solvolysis of 14-(Primary alkyl)-5,6,8,9-tetrahydro-7-phenyldibenzoacridiniums: Rates, Identification of Products, Activation Parameters, and a General Discussion of Mechanism

Solvolysis rate are reported for the Me, Et, n-Pr, n-Pent, n-Oct, i-Bu, neo-Pent, PhCH2CH2, and MeOCH2CH2 title compounds in MeOH, EtPH, PentOH, CH3CO2H, and CF3CO2H.Rate variations with alkyl group structure are far less than the corresponding rate variations for the tosylate solvolysis, and afford no evidence for rate-enhancing participation by β-phenyl or β-methoxy groups in the acridinium solvolyses.The n-propyl, n-pentyl, and n-octyl title compounds solvolyze in CH3OD and CH3CO2D to give mixtures of normal and rearranged products, none of which contain deuterium and which are therefore not formed via olefin intermediates.Methanolysis of the isobutyl title compounds occurs via olefin, but the acetolysis also involves an important nonolefinic pathway yielding isobutyl and sec-butyl acetates.Methanolysis products from the neopentyl derivative are heavily deuterated, but acetolysis yields undeuterated neopentyl acetate as well as deuterated tert-pentyl acetate.Product proportions calculated using GC/MS were used to deduce the fractions of reactions by various mechanistic pathways.Individual rates are calculated for solvolysis to the various unrearranged and rearranged products.They indicate that normal substitution in MeOH occurs by a classical SN2 reaction, but that such substitution in AcOH involves ion-pair intermediates.It is concluded that such ion pairs under go Me and H migration after the rate-determining stage, in competition with substitution.Activation parameters provide further evidence for the mechanistic paths proposed which are discussed in relation to literature data available for the corresponding tosylate.