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360066

Sigma-Aldrich

2,2,4-Trimethylpentane

anhydrous, 99.8%

Synonym(s):
Isooctane, TMP
Linear Formula:
(CH3)2CHCH2C(CH3)3
CAS Number:
Molecular Weight:
114.23
Beilstein:
1696876
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

anhydrous

vapor density

3.9 (vs air)

vapor pressure

41 mmHg ( 21 °C)

assay

99.8%

form

liquid

autoignition temp.

745 °F

expl. lim.

6 %

technique(s)

UV/Vis spectroscopy: suitable

impurities

<0.003% water
<0.005% water (100 mL pkg)

evapn. residue

<0.0003%

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.)

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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General description

2,2,4-Trimethylpentane is a primary reference fuel with an arbitrary octane number of 100 as it burns smoothly without resulting in any knocking. It is mainly used to improve the octane rating of combustion fuels.

Application

2,2,4-Trimethylpentane has been used for the calibration of densimeter and for baseline correction in UV-Visible spectrophotometer.

Packaging

1, 2 L in Sure/Seal™
100 mL in Sure/Seal™

Other Notes

The article number 360066-6X1L will be discontinued. Please order the single bottle 360066-1L which is physically identical with the same exact specifications.

Signal Word

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 Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

10.4 °F - closed cup

Flash Point(C)

-12 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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