2,2,4-Trimethylpentane

Isooctane

540-84-1

Pentane, 2,2,4-trimethyl-

Isobutyltrimethylmethane

ISO-OCTANE

2,4,4-Trimethylpentane

i-octane

(CH3)2CHCH2C(CH3)3

Isooctane Blank

QAB8F5669O

DTXSID7024370

CHEBI:62805

NSC-39117

MFCD00008943

2,2,4-trimethyl-pentane

HSDB 5682

EINECS 208-759-1

NSC 39117

BRN 1696876

UNII-QAB8F5669O

AI3-23976

Isobutyltrimethylethane

ISOOCTANE [MI]

ISOOCTANE [INCI]

Pentane,2,4-trimethyl-

2,2,4-trimethyl pentane

ISO-OCTANE [HSDB]

Trimethyl-2,2,4 pentane

EC 208-759-1

4-01-00-00439 (Beilstein Handbook Reference)

DTXCID104370

CHEMBL1797261

NSC39117

2,2,4-Trimethylpentane, for HPLC

Tox21_201127

STL280330

2,2,4-Trimethylpentane, HPLC Grade

AKOS009159117

MCULE-3330030399

WLN: 1Y1&1X1&1&1

2,2,4-Trimethylpentane, ACS, 99+%

2,2,4-Trimethylpentane, LR, >=99%

NCGC00248930-01

NCGC00258679-01

CAS-540-84-1

2,2,4-Trimethylpentane, ASTM, 99.8%

2,2,4-Trimethylpentane, AR, >=99.5%

2,2,4-Trimethylpentane, JIS special grade

2,2,4-Trimethylpentane, p.a., 99.5%

DB-052475

2,2,4-Trimethylpentane, analytical standard

2,2,4-Trimethylpentane, anhydrous, 99.8%

2,2,4-Trimethylpentane, Environmental Grade

I0276

NS00001389

T0481

T0715

2,2,4-Trimethylpentane, for HPLC, >=99%

2,2,4-Trimethylpentane, Pesticide, 99.5%

2,2,4-Trimethylpentane, ACS reagent, 99.5%

2,2,4-Trimethylpentane, for HPLC, >=99.8%

2,2,4-Trimethylpentane, ACS reagent, >=99.0%

2,2,4-Trimethylpentane, HPLC grade, >=99.7%

2,2,4-Trimethylpentane, ReagentPlus(R), >=99%

Q209130

W-109087

2,2,4-Trimethylpentane, puriss. p.a., ACS reagent

2,2,4-Trimethylpentane, SAJ first grade, >=98.0%

2,2,4-Trimethylpentane, UV HPLC spectroscopic, 99.5%

2,2,4-Trimethylpentane, puriss. p.a., >=99.5% (GC)

Density Standard 692 kg/m3, H&D Fitzgerald Ltd. Quality

2,2,4-Trimethylpentane, ACS spectrophotometric grade, >=99%

InChI=1/C8H18/c1-7(2)6-8(3,4)5/h7H,6H2,1-5H

2,2,4-Trimethylpentane, >=99.5%, suitable for absorption spectrum analysis

2,2,4-Trimethylpentane, puriss. p.a., ACS reagent, >=99.5% (GC)

2,2,4-Trimethylpentane (Isooctane), Pharmaceutical Secondary Standard; Certified Reference Material

85404-20-2

Based on water and vapor phase mass transfer coefficients, the volatilization half-life of iso-octane at 25 deg C from a still body of water at a depth of 1 m was estimated to be 5.6 hrs(1). Using more realistic winding blowing conditions, the evaporation half-life of the compound from a model river 1 meter deep, flowing at 1 m/sec with a wind speed of 3 m/sec was estimated to be 3.1 hrs(2). However, neither estimation method considers the effect of adsorption on the rate of volatility. Using EXAMS model which considers various input parameters including the effect of adsorption, the volatilization half-life of iso-octane from a model pond has been estimated to be 15 days(3,SRC).
Literature: (1) Mackay D, Leinonen PJ; Environ Sci Technol 9: 1178-80 (1975) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods NY: McGraw-Hill pp. 15-25 (1982) (3) USEPA; EXAMS II Computer Simulation, Athens, GA (1987)

The adsorption of several hydrocarbons including iso-octane in five types of soil was studied by measuring the retention volumes(1). Hydrocarbon retention by dry soils increased with molecular weight and unsaturation and decreased with branching. The retention volume of iso-octane was found to be high, but the authors did not provide any Koc values. The log Koc for iso-octane in soil has been estimated to be 3.43 from the water solubility of the compound(4) and a regression equation(2). The average log Koc for this compound in sediments from a salt marsh, a pond and a river was 4.35. Therefore, iso-octane is expected to generally remain strongly adsorbed to soil and sediments(5,SRC).
Literature: (1) Bohn HL et al; J Environ Qual 9: 563-5 (1980) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods NY: McGraw-Hill p. 4-9 (1982) (3) MacIntyre WG et al; Hydrocarbon Fuel Chemistry Virginia Inst of Marine Science, Gloucester Point, VA. NTIS AD-A117928, Springfield, VA p. 53 (1982) (4) Yalkowsky SH; Arizona Database of Aqueous Solubility, College of Pharmacy, Univ of Arizona, Tuscon, AZ (1989) (5) Swann RL et al; Res Rev 85: 17-28 (1983)