| Volatilization | The Henry's Law constant for glyoxylic acid is estimated as 3X10-9 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that glyoxylic acid is not expected to volatilize from moist soil or water surfaces(2). The pKa of glyoxylic acid is 3.3(3), indicating that this compound will exist primarily in the ionized form in water and moist soils and the anionic form of glyoxylic acid will not volatilize(SRC). Glyoxylic acid may volatilize from dry soil surfaces(SRC) based upon its vapor pressure of 1 mm Hg at 25 deg C(SRC), determined from a fragment constant estimation method(4).
Literature: (1) Meylan WM, Howard PH; Environ Toxicol Chem 10: 1283-93 (1991) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Dean JA; Lange's Handbook of Chemistry 13th ed. NY, NY: McGraw-Hill p. 5-40 (1985) (4) Lyman WJ; p. 31 in Environmental Exposure From Chemicals Vol I, Neely WB, Blau GE, eds, Boca Raton, FL: CRC Press (1985) |
| Solubility | Very soluble in water; slightly soluble in ethanol, ethyl ether, and benzene
Literature: Lide, DR (ed.). CRC Handbook of Chemistry and Physics. 81st Edition. CRC Press LLC, Boca Raton: FL 2000, p. 3-8 |
| Soil Adsorption | Using a structure estimation method based on molecular connectivity indices(1), the Koc for glyoxylic acid can be estimated to be 1(SRC). According to a classification scheme(2), this estimated Koc value suggests that glyoxylic acid is expected to have very high mobility in soil. The pKa of glyoxylic acid is 3.3(3), which indicates that this compound will exist primarily as an anion in moist soil surfaces and anions are expected to have very high mobility in soils(SRC).
Literature: (1) Meylan WM et al; Environ Sci Technol 26: 1560-67 (1992) (2) Swann RL et al; Res Rev 85: 17-28 (1983) (3) Dean JA; Lange's Handbook of Chemistry 13th ed. NY: McGraw-Hill p. 5-40 (1985) |
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