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32291

2,2,4-Trimethylpentane

Name: 2,2,4-Trimethylpentane
Brand: SIGALD

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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Properties

Quality Level

100

vapor density

3.9 (vs air)

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

Description

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

The article number 32291-4X2.5L will be discontinued. Please order the single bottle 32291-2.5L which is physically identical with the same exact specifications.
The article number 32291-4X2.5L-M will be discontinued. Please order the single bottle 32291-2.5L-M which is physically identical with the same exact specifications.

Pertains only in Germany: unversteuert

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pictograms

GHS02,GHS08,GHS07,GHS09

signalword

Danger

hcodes

H225,H304,H315,H336,H410

pcodes

P210 - P233 - P273 - P301 + P310 - P303 + P361 + P353 - P331

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 °C - closed cup

Regulatory Information

危险化学品

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2,2,4-Trimethylpentane-induced nephrotoxicity. II. The reversible binding of a TMP metabolite to a renal protein fraction containing alpha 2u-globulin.

E A Lock et al.

Toxicology and applied pharmacology, 91(2), 182-192 (1987-11-01)

Trimethylpentane (TMP) produces nephrotoxicity in male but not in female rats. The toxicity is characterized by an increase in protein droplets in proximal convoluted tubular cells and an increase in the renal concentration of the male-rat-specific protein alpha 2u-globulin. Subcellular

Density and viscosity measurements of 2, 2, 4-trimethylpentane (isooctane) from 198 K to 348 K and up to 100 MPa.

Padua AAH, et al.

Journal of Chemical and Engineering Data, 41(6), 1488-1494 (1996)

Physicochemical properties of liquid mixtures. 1. Viscosity, density, surface tension and refractive index of cyclohexane+ 2, 2, 4-trimethylpentane binary liquid systems from 25 C to 50 ?C.

Gomez-Diaz D, et al.

Journal of Chemical and Engineering Data, 46(3), 720-724 (2001)

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Global Trade Item Number

SKU	GTIN
32291-140KG	04061838223999
32291-4X2.5L	04061837851063
32291-1L	04061826703441
32291-2.5L	04061826703526