TRIACONTANE

n-Triacontane

638-68-6

CHEBI:31006

UNII-47A73V7096

EINECS 211-349-5

NSC 158661

NSC-158661

47A73V7096

DTXSID0060935

HSDB 8360

MFCD00009410

Triacontane, analytical standard

CH3-(CH2)28-CH3

CH3-[CH2]28-CH3

Triacontane; NSC 158661; n-Triacontane

Triacontane, 98%

n-Triacontane 100 microg/mL in Hexane

CHEMBL1482375

DTXCID9044110

LMFA11000588

N-C-30

NSC158661

STL564700

AKOS024257521

MCULE-1742110241

NCGC00165977-01

AS-48050

DB-054569

CS-0204888

NS00010795

T0594

F17598

Q151058

A387C655-6236-4AC5-80E3-45EDC0B765D1

The Henry's Law constant for triacontane is estimated as 1530 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that triacontane 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 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 8.1 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). Triacontane's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). Triacontane is not expected to volatilize from dry soil surfaces(SRC) based upon an extrapolated vapor pressure of 2.73X10-11 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) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals Data Compilation. Washington, DC: Taylor and Francis (1989)

In water, 5.04X10-11 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. 3-514
Literature: #Soluble in ether; slightly soluble in ethanol; very soluble in benzene
Literature: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-514

Using a structure estimation method based on molecular connectivity indices(1), the Koc of triacontane can be estimated to be 2.4X10+8(SRC). According to a classification scheme(2), this estimated Koc value suggests that triacontane 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 21, 2016: http://www2.epa.gov/tsca-screening-tools (2) Swann RL et al; Res Rev 85: 17-28 (1983)