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155012

Sigma-Aldrich

2,2,4-Trimethylpentane

ACS spectrophotometric grade, ≥99%

Synonym(s):

Isooctane

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About This Item

Linear Formula:
(CH3)2CHCH2C(CH3)3
CAS Number:
540-84-1
Molecular Weight:
114.23
Beilstein/REAXYS Number:
1696876
EC Number:
208-759-1
MDL number:
MFCD00008943
UNSPSC Code:
12352001
eCl@ss:
39010116
PubChem Substance ID:
24849327

grade

ACS spectrophotometric grade

Quality Level

200

vapor density

3.9 (vs air)

vapor pressure

41 mmHg ( 21 °C)

assay

≥99%

form

liquid

autoignition temp.

745 °F

expl. lim.

6 %

technique(s)

UV/Vis spectroscopy: suitable

impurities

≤0.0003 meq/g Water-soluble titr. acid
≤0.005% S compounds

evapn. residue

≤0.001%

color

APHA: ≤10

refractive index

n20/D 1.391 (lit.)

bp

98-99 °C (lit.)

mp

−107 °C (lit.)

density

0.692 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

λ: 210 nm Amax: 1.00
λ: 220 nm Amax: 0.20
λ: 230 nm Amax: 0.10
λ: 240 nm Amax: 0.04
λ: 250-400 nm Amax: 0.01

SMILES string

CC(C)CC(C)(C)C

InChI

1S/C8H18/c1-7(2)6-8(3,4)5/h7H,6H2,1-5H3

InChI key

NHTMVDHEPJAVLT-UHFFFAOYSA-N

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Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Central nervous system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

10.4 °F - closed cup

flash_point_c

-12 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
1441734V
SHBB5803V
1480330V
1480329V
1479634V

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