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391433

Sigma-Aldrich

tert-Butylamine

≥99.5%

Synonym(s):

2-Amino-2-methylpropane

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About This Item

Linear Formula:
(CH3)3CNH2
CAS Number:
Molecular Weight:
73.14
Beilstein:
605267
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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vapor density

2.5 (vs air)

vapor pressure

5.7 psi ( 20 °C)

Assay

≥99.5%

form

liquid

autoignition temp.

716 °F

expl. lim.

9.8 %

refractive index

n20/D 1.377 (lit.)

bp

46 °C (lit.)

mp

−67 °C (lit.)

solubility

water: miscible 1000 g/L at 25 °C
alcohol: miscible(lit.)
chloroform: soluble(lit.)
organic solvents: soluble(lit.)

density

0.696 g/mL at 25 °C (lit.)

functional group

amine

SMILES string

CC(C)(C)N

InChI

1S/C4H11N/c1-4(2,3)5/h5H2,1-3H3

InChI key

YBRBMKDOPFTVDT-UHFFFAOYSA-N

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General description

tert-Butylamine (TBA) is an aliphatic primary amine. Its enthalpy of combustion and formation has been studied.[1] Its gas phase acidity[2] and gas phase basicity has been evaluated.[3] The ozonation of tert-butylamine has been reported.[4] Its influence on the aqueous beta-cyclodextrin (β-CD): pyrene complex has been examined by steady-state fluorescence measurements.[5]

Application

tert-Butylamine (t-butylamine) may be used in the synthesis of Zn2-SnO4 nanoparticles.[6] It may be used to terminate the polymerization reaction during the synthesis of the following polymers (DAB =1,4-diaminobutane, BA=Boronic acid , PAA=functional poly(amido amine), ABOL=4-aminobutanol, Bn=Benzyl):[7]
  • (DAB-BA-PAA)
  • (ABOL-BA-PAA)
  • (DAB-Bn-PAA)
tert-Butylamine (TBA) is suitable for use as an indicator molecule in the study of NMR-based pH determination method, free of glass electrode errors in highly basic media.[8] It is suitable for use in the synthesis of methyl β-ketophosphonate[9], titanium dioxide nanoparticles (TiO2 NPs)[10][11] and samarium oxide (Sm2O3) nanospheres and nanorods.[12] It may be used in the following studies:
  • As liquid hydrocarbon promoter in the systematic study on methane hydrate formation and dissociation.[13]
  • As an example in the study of the effect of amines in influencing atmospheric H2SO4-H2O nucleation.[14]
  • Hydroamination of terminal alkynes.[15]
  • To measure the surface acidity of solid catalysts by temperature-programmed desorption.[16]
  • As a reductive nitrogen source in the atomic layer deposition technique used to deposit TaN thin films from TaCl5 and TaBr5.[17]

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1A

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

-36.4 °F - closed cup

Flash Point(C)

-38 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Zinc stannate (Zn2SnO4) dye-sensitized solar cells.
Bing Tan et al.
Journal of the American Chemical Society, 129(14), 4162-4163 (2007-03-21)
Methane hydrate phase stability with lower mole fractions of tetrahydrofuran (THF) and tert--butylamine (t-BuNH2).
Dhanunjana Chari V, et al.
Fluid Phase Equilibria, 315, 126-130 (2012)
Laboratory study on new particle formation from the reaction OH+ SO2: influence of experimental conditions, H2O vapour, NH3 and the amine tert-butylamine on the overall process.
Berndt T, et al.
Atmospheric Chemistry and Physics, 10(15), 7101-7116 (2010)
Controlled self-assembly of Sm2O3 nanoparticles into nanorods: simple and large scale synthesis using bulk Sm2O3 powders.
Nguyen TD, et al.
The Journal of Physical Chemistry C, 112(39), 15226-15235 (2008)
Gábor Orgován et al.
Journal of pharmaceutical and biomedical analysis, 54(5), 958-964 (2010-12-21)
A set of indicator molecules was selected and applied to elaborate an NMR-based pH determination method, free of glass electrode errors in highly basic media. Accurate measurement of pH values and protonation constants was achieved by a successive build-up of

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
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      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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