butyric acid

butanoic acid

107-92-6

n-Butyric acid

n-Butanoic acid

propylformic acid

ethylacetic acid

1-propanecarboxylic acid

butyrate

Butanic acid

1-Butyric acid

Buttersaeure

butanoate

Butyric acid (natural)

Kyselina maselna

FEMA No. 2221

Propanecarboxylic acid

1-butanoic acid

acide butyrique

butoic acid

Buttersaeure [German]

Butyricum acidum

FEMA Number 2221

CCRIS 6552

HSDB 940

Kyselina maselna [Czech]

NSC 8415

fattyacids

67254-79-9

acide butanoique

2-butanoate

NORMAL BUTYRIC ACID

AI3-15306

NSC-8415

EINECS 203-532-3

UNII-40UIR9Q29H

MFCD00002814

UN2820

Butyric--d4 Acid

BRN 0906770

40UIR9Q29H

C4:0

DTXSID8021515

CHEBI:30772

Acid, Butanoic

NSC8415

BUTYRIC ACID (D8)

CH3-[CH2]2-COOH

DTXCID401515

EC 203-532-3

butanate

4-02-00-00779 (Beilstein Handbook Reference)

Butyrate sodium

1-butanoate

propanecarboxylate

1-butyrate

Butyric acid [UN2820] [Corrosive]

Sodium n-butyrate

1-propanecarboxylate

BUA

CH3-(CH2)2-COOH

Butyric Acid (Normal)

Acid, Butyric

CAS-107-92-6

sodium-butyrate

Honey robber

Tetranoic Acid

ethyl acetic acid

1ugp

3umq

butanoic acid, 4

TNFa + NaBut

715 - Chocolate

Butyrate, sodium salt

Butyric acid [UN2820] [Corrosive]

BUTYRIC_ACID

n-C3H7COOH

TNFa + Sodium Butyrate

Butyric acid, >=99%

bmse000402

BUTYRIC ACID [MI]

NCIMech_000707

BUTYRIC ACID [FCC]

WLN: QV3

BUTYRIC ACID [HSDB]

BUTYRIC ACID [INCI]

BUTYRIC ACID [VANDF]

CHEMBL14227

BUTYRIC ACID [WHO-DD]

Butyric acid, >=99%, FG

N-BUTYRIC ACID [FHFI]

GTPL1059

BUTYRICUM ACIDUM [HPUS]

BDBM26109

Butyric acid, analytical standard

Bio1_000444

Bio1_000933

Bio1_001422

STR06290

Tox21_202382

Tox21_300164

CCG-35836

FA 4:0

LMFA01010004

STL169349

AKOS000118961

DB03568

MCULE-4116382006

UN 2820

NCGC00247914-01

NCGC00247914-02

NCGC00247914-05

NCGC00253919-01

NCGC00259931-01

BP-21420

NCI60_001424

Butyric acid, natural, >=99%, FCC, FG

DB-318878

B0754

NS00001284

Butyric acid 1000 microg/mL in Acetonitrile

Butyric acid, SAJ special grade, >=99.5%

EN300-21334

C00246

Q193213

W-108732

BRD-K05878375-236-02-4

9B27B3D0-9643-40EC-9A5F-7CA1A6ED7F9F

F2191-0094

Z104495380

InChI=1/C4H8O2/c1-2-3-4(5)6/h2-3H2,1H3,(H,5,6

The Henry's Law constant for n-butanoic acid is measured as 5.35X10-7 atm-cu m/mole(1). This Henry's Law constant indicates that n-butanoic acid 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 64 days(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 471 days(SRC). A pKa of 4.82(3) indicates n-butanoic acid will exist almost entirely in the anion form at pH values of 5 to 9 and therefore volatilization from water surfaces is not expected to be an important fate process(4). n-Butanoic acid's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). n-Butanoic acid is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 1.65 mm Hg(5).
Literature: (1) Butler JAV, Ramchandani CN; The Solubility of Non-Electrolytes. Part 2. J Chem Soc pp. 1952-5 (1935) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Riddick JA et al; Organic Solvents. Techniques of Chemistry 4th ed. New York, NY, Wiley-Interscience 2 pp. 1325 (1986) (4) Doucette WJ; pp. 141-188 in Handbook of Property Estimation Methods for Chemicals. Boethling RS, Mackay D, eds. Boca Raton, FL: Lewis Publ (2000) (5) Lide DR, ed; CRC Handbook of Chemistry and Physics. 76th ed. Boca Raton, FL: CRC Press (1995)

The Koc of n-butanoic acid is estimated as 64(SRC), using a log Kow of 0.79(1) and a regression-derived equation(2). Experimental Koc values for n-butanoic acid on a clastic mud (3.5% organic carbon), a lateritic muddy sand (1.3% organic carbon), and a fine carbonate sand (0.17% organic carbon) were 19.1, 27.6, and 14.7, respectively(3). According to a classification scheme(4), these estimated and experimental Koc values suggest that n-butanoic acid is expected to have very high to high mobility in soil. The percent of n-butanoic acid sorbed to a kalonite or montmorillonite clay at 22 deg C was 14.0% and 19.9% after 48 hours, respectively, which increased to 31.4% and 24.2%, respectively, after 144 hours(5). In a field study in which 100 ppm n-butanoic acid was injected underground, the retardation, relative to the linear ground-water velocity, was calculated to be 3%(6). N-butanoic acid is listed as a compound displaying an L-type adsorption isotherm, indicating that specific binding sites may be involved(7). Experimental studies in indicate that adsorption of n-butanoic acid to moist soil is dominated by attractive forces between the compound and soil and not by hydrophobic interactions(8). The pKa of n-butanoic acid is 4.82(9), indicating that this compound will primarily exist in the anion in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(10).
Literature: (1) Sansone FJ et al; Geochim Cosmochim Acta 51: 1889-96 (1987) (2) Swann RL et al; Res Rev 85: 17-28 (1983) (3) Hemphill L et al; Proc 18th Indust Waste Conf 18: 204-17 (1964) (4) Sutton PA, Barker JF; Ground Water 23: 10-6 (1985) (5) Weber JB, Miller CT; Reactions and Movement of Organic Chemicals in Soils, SSSA Spec Publ No. 22: 305-33 (1989) (6) Ulrich H et al; Env Sci Tech 22: 37-41 (1988) (7) Riddick JA et al; Organic Solvents. Techniques of Chemistry 4th ed. New York, NY, Wiley-Interscience 2:pp. 1325 (1986) (8) Doucette WJ; pp. 141-188 in Handbook of Property Estimation Methods for Chemicals. Boethling RS, Mackay D, eds. Boca Raton, FL: Lewis Publ (2000)