HENTRIACONTANE

Untriacontane

Hentriacontan

Hentriacontane, analytical standard

IUJAMGNYPWYUPM-UHFFFAOYSA-N

n-Hentriacontane

Euphorbia cerifera wax

Candelilla wax

Candellila wax

AC1L1ZJF

Waxes, candelilla

Triacontane, methyl-

ACMC-1B2C1

CTK0E7217

6SDG640HL3

CHEMBL257490

CCRIS 3934

UNII-6SDG640HL3

HSDB 8361

CHEBI:5659

C08376

DTXSID0075443

Bio-0214

LP093662

ZINC8221060

n-HENTRIACONTANE (C31)

ANW-34508

TL8004358

LMFA11000573

MFCD00048745

ZINC08221060

TR-021696

LS-180228

AKOS015843210

FEMA No. 3479

Candelilla wax (wax from stems and branches of euphobia cerifera)

I14-19391

630-04-6

EINECS 232-347-0

CH3-[CH2]29-CH3

157877-83-3

441529E2-C629-4003-A2DD-9134C4C1801B

The Henry's Law constant for hentriacontane is estimated as 2040 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that hentriacontane 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 6.1 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 8.3 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). Hentriacontane's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). Hentriacontane is not expected to volatilize from dry soil surfaces(SRC) based upon an extrapolated vapor pressure of 1.40X10-11 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 21, 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) Zwolinski BJ, Wilhoit RC; Handbook of Vapor Pressures and Heats of Vaporization of Hydrocarbons and Related Compounds. API44-TRC101. College Station, TX: Thermodynamcs Research Center (1971)

Using a structure estimation method based on molecular connectivity indices(1), the Koc of hentriacontane can be estimated to be 4.3X10+8(SRC). According to a classification scheme(2), this estimated Koc value suggests that hentriacontane 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 10, 2016: http://www2.epa.gov/tsca-screening-tools (2) Swann RL et al; Res Rev 85: 17-28 (1983)