OCTACOSANE

ZYURHZPYMFLWSH-UHFFFAOYSA-N

Octacosane, analytical standard

n-Octcosane

n-Octacosane

AC1L1ZJ9

Heptacosane, methyl-

6770AF

Octacosane, n-

Octacosane, 99%

NSC5549

C28H58

CCRIS 680

CTK1J1283

O0002

ACMC-1B929

VFF49836P8

HSDB 8358

STL453125

NSC-5549

NSC 5549

LP076708

DTXSID6058639

CHEBI:32943

UNII-VFF49836P8

ZINC6920420

TL8004356

AN-22074

TRA0000543

ANW-34506

LMFA11000580

C-24725

MFCD00009355

TR-021694

DB-054367

AI3-52615

RTR-021694

ST51037384

AKOS015902504

FT-0632672

I14-19389

630-02-4

n-Octacosane, 99% 10g

MCULE-9551476105

EINECS 211-125-7

CH3-[CH2]26-CH3

69256-48-0

MolPort-002-485-404

E66BE919-93E8-4101-AB46-9612FE796394

The Henry's Law constant for octacosane is estimated as 870 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that octacosane is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 5.8 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 7.9 days(SRC). However, volatilization from water surfaces is expected to be attenuated by adsorption to suspended solids and sediment in the water column. The volatilization half-life from a model pond is greater than 2 years when adsorption is considered(3). Octacosane's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). Octacosane is not expected to volatilize from dry soil surfaces(SRC) based upon an extrapolated vapor pressure of 1.60X10-9 mm Hg at 25 deg C(4).
Literature: (1) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.1. Nov, 2012. Available from, as of Nov 22, 2016: http://www2.epa.gov/tsca-screening-tools (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) US EPA; EXAMS II Computer Simulation (1987) (4) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals Data Compilation. Washington, DC: Taylor and Francis (1989)

In water, 5.6X10-10 mg/L at 25 deg C (est)
Literature: US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.1. Nov, 2012. Available from, as of Nov 10, 2016: http://www2.epa.gov/tsca-screening-tools
Literature: #Insoluble in water
Literature: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-424
Literature: #Miscible with acetone, soluble in benzene, chloroform
Literature: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-424

Using a structure estimation method based on molecular connectivity indices(1), the Koc of octacosane can be estimated to be 7.1X10+7(SRC). According to a classification scheme(2), this estimated Koc value suggests that octacosane is expected to be immobile in soil.
Literature: (1) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.1. Nov, 2012. Available from, as of Nov 22, 2016: http://www2.epa.gov/tsca-screening-tools (2) Swann RL et al; Res Rev 85: 17-28 (1983)