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32291-M

2,2,4-Trimethylpentane

puriss. p.a., ≥99.5% (GC)

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
UNSPSC Code:
12191502
NACRES:
NA.21
PubChem Substance ID:
329754125
EC Number:
208-759-1
Beilstein/REAXYS Number:
1696876
MDL number:
MFCD00008943
Assay:
≥99.5% (GC)
Technique(s):
GC/GC: suitable
Bp:
98-99 °C (lit.)
Vapor pressure:
41 mmHg ( 21 °C)
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vapor density

3.9 (vs air)

Quality Level

100

vapor pressure

41 mmHg ( 21 °C)

grade

puriss. p.a.

assay

≥99.5% (GC)

form

liquid

autoignition temp.

745 °F

expl. lim.

6 %

technique(s)

GC/GC: suitable

impurities

≤0.0005% free acid (as CH3COOH), ≤0.001% non-volatile matter, ≤0.005% S-compounds (as S), ≤0.01% water (Karl Fischer)

refractive index

n20/D 1.391 (lit.), n20/D 1.3915-1.3925

bp

98-99 °C (lit.)

mp

−107 °C (lit.)

density

0.692 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg, B: ≤0.02 mg/kg, Ba: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.05 mg/kg, Co: ≤0.02 mg/kg, Cr: ≤0.02 mg/kg, Cu: ≤0.02 mg/kg, Fe: ≤0.1 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.02 mg/kg, Ni: ≤0.02 mg/kg, Pb: ≤0.1 mg/kg, Sn: ≤0.1 mg/kg, Zn: ≤0.1 mg/kg

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

General description

2,2,4-Trimethylpentane (TMP, isooctane) is a saturated, branched hydrocarbon. It has been reported to be nephrotoxic to male rats. Density and viscosity of TMP at various temperatures (198K - 348K) and pressures (100MPa) has been evaluated. It has been identified as nephrotoxicity inducing component in unleaded gasoline.

Application

2,2,4-Trimethylpentane (TMP, isooctane) may be used to evaluate various physical properties (densities, viscosities, refractive indexes and surface tensions) of the binary mixtures of TMP and cyclohexane.

Other Notes

Pertains only in Germany: unversteuert

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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

WGK 2

flash_point_f

10.4 °F - closed cup

flash_point_c

-12.00 °C - closed cup

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
STBK7164
STBK6112
STBK4999
STBK1645

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