Merck
All Photos(1)

59045

Sigma-Aldrich

2,2,4-三甲基戊烷

puriss. p.a., ACS reagent, ≥99.5% (GC)

Synonym(s):
异辛烷
Linear Formula:
(CH3)2CHCH2C(CH3)3
CAS Number:
Molecular Weight:
114.23
Beilstein:
1696876
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

质量水平

200

等级

ACS reagent
puriss. p.a.

蒸汽密度

3.9 (vs air)

蒸汽压

41 mmHg ( 21 °C)

测定

≥99.5% (GC)

形式

liquid

自燃温度

745 °F

expl. lim.

6 %

杂质

≤0.002% free acid (as CH3COOH)
≤0.005% sulfur compounds (as S)

蒸发残留物

≤0.001%

折射率

n20/D 1.391 (lit.)
n20/D 1.391

bp

98-99 °C (lit.)

mp

−107 °C (lit.)

密度

0.692 g/mL at 25 °C (lit.)

痕量阳离子

Al: ≤0.5 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤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
K: ≤0.5 mg/kg
Li: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.1 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sr: ≤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

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一般描述

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. Single-photon absorption spectra of its pure liquid form under vacuum ultraviolet excitation have been investigated. It is a reference standard employed for the octane rating system of gasoline and has been assigned octane rating of 100.6

应用

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.

警示用语:

Danger

危险分类

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

靶器官

Central nervous system

储存分类代码

3 - Flammable liquids

WGK

WGK 2

闪点(F)

10.4 °F - closed cup

闪点(C)

-12 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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