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295450

Sigma-Aldrich

2-Methylpropane

99%

Sinónimos:

Isobutane

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About This Item

Fórmula lineal:
(CH3)3CH
Número de CAS:
75-28-5
Peso molecular:
58.12
Beilstein/REAXYS Number:
1730720
EC Number:
200-857-2
MDL number:
MFCD00008926
UNSPSC Code:
12142100
PubChem Substance ID:
24857785
NACRES:
NA.22

vapor density

2.01 (21 °C, vs air)

vapor pressure

72.2 psi ( 37.7 °C)

assay

99%

autoignition temp.

860 °F

expl. lim.

8.3 %

bp

−12 °C (lit.)

mp

−160 °C (lit.)

density

2.064 g/mL at 25 °C (lit.)

SMILES string

CC(C)C

InChI

1S/C4H10/c1-4(2)3/h4H,1-3H3

InChI key

NNPPMTNAJDCUHE-UHFFFAOYSA-N

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Application

2-Methylpropane can be used as a starting material to prepare:
  • Isobutylene by catalytic dehydrogenation using various catalysts.
  • Isopropyl methyl ketone by formylation reaction with carbon monoxide in the presence of super acid catalyst.
  • tert-Butylhydroperoxide (TBHP) by oxidation.

Packaging

Supplied in a Sure/Pac™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Hose barb

Referencia del producto
Descripción
Precios

Z146811

Hose adapter, brass

Optional

Referencia del producto
Descripción
Precios

Regulator

Referencia del producto
Descripción
Precios

Z513539

Aldrich® mini gas regulator, brass body

also commonly purchased with this product

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Precios

Z221880

PTFE sealing tape, W 1 in.

Z104388

PTFE sealing tape, W 1/2 in.

pictograms

FlameGas cylinder
GHS02,GHS04

signalword

Danger

hcodes

H220,H280

Hazard Classifications

Flam. Gas 1A - Press. Gas Liquefied gas

Storage Class

2A - Gases

wgk_germany

nwg

flash_point_f

-117.4 °F - closed cup

flash_point_c

-83 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)

Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number
SHBK1143
SHBG7919V
SHBC9468V
STBB6794
SHBB5199V

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The solubility of n-butane and 2-methylpropane (isobutane) in three ionic liquids - 1-(2-methylpropyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [(2mC3)C1im][Ntf2], 1-(3-methylbutyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [(3mC4)C1im][Ntf2] and 1-methyl-3-pentylimidazolium bis(trifluoromethylsulfonyl)imide [C5C1im][Ntf2] - has been measured at atmospheric pressure from 303 to 343 K. Isobutane is less soluble than n-butane
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