Dipropylene glycol (SIDS)

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OECD SIDS DIPROPYLENE GLYCOLE Type: Adsorption [ ]: Desorption [ ]; Volatility [ ]: Other [ X] Media: Water-Air Method: Other Remarks: Henry Law Constant: 3.6 x 10 -4 Pa*m 3 /mole. The volatility of DPG from water can, therefore, be considered as minimal. Reference: Hine, J.; Mookerjee, P.K. (1975): The intrinsic hydrophilic character of organic compounds. Correlations in terms of structural contributions. J. Org. Chem . 40, 292-298. Mackay, D. (1991): Multimedia Environmental Models, Chelsea, Lewis Publishers, 185-227. Thomas, R.G. (1990): Volatilization from water. Lyman, W.J.; Reehl, W.F.; Rosenblatt, D.H. (Publisher): Handbook of chemical property estimation methods. Environmental Behavior of Organic Compounds, New York, McGraw-Hill, 15.1 - 15.34. 3.3.2 THEORETICAL DISTRIBUTION (FUGACITY CALCULATION) No data available 3.4 IDENTIFICATION OF MAIN MODE OF DEGRADABILITY IN ACTUAL USE No data available 3.5 BIODEGRADATION Type: aerobic Inoculum: activated sludge, adapted Test condition: Directive 87/302/EEC, part C. p. 99 “Biodegradation: Zahn-Wellens test” Concentration: GLP: No data Results: > 70 % degraded after 28 day Reference: BASF (1989): Dipropylene Glycol. DIN -Sicherheitsdatenblatt com Juli 1989, BASF Aktiengesellschaft, Ludwigshafen, 2 S. Type: aerobic Inoculum: Method: GLP: Results: Reference: activated sludge not given; 30 mg/1 substance; 100 mg/l sludge No data under test conditions no biodegradation observed MITI (1992): Dipropylene glycol. Chemicals inspection and testing institute Japan: Data of existing chemicals based on the CSCL Japan. Japan Chemical Industry Ecology -Toxicology and Information Center, 2-56. Type: aerobic Inoculum: Corynebacterium sp. (Bacteria) Concentration: 5 g/l GLP: No data Results: Degradation: > 90 % after 23 hour Remark Degradation of DPG to propylene glycol and ketones depended on the shaking conditions. In stationary culture, DPG was scarcely degraded. With vigorous shaking (about 120 rpm), over 90% of DPG was consumed within 23 h, but traces 32 UNEP PUBLICATIONS
OECD SIDS DIPROPYLENE GLYCOLE of metabolites accumulated in the reaction mixture. The metabolites were characterized by GC-MS analysis using a capillary column. Reference: Kawai, F.; Hanada, K.; Tani, Y.; Ogata, K. (1977): Bacterial degradation of waterinsoluble polymer (polypropylene glycol). J. Ferment. Technol. 55: 89-96. Kawai, F. Okamoto, T.; Suzuki, T. (1985): Aerobic degradation of polypropylene glycol by corynebacterium sp. J. Ferment. Technol. 63: 239-244. Type: aerobic Inoculum: other: soil bacterium (aerobic. gram-negative) Concentration: 671 ug/1 Results: Degradation: >70% after 28 day; 2% degradation after 4 hours related to oxygen uptake. GLP: No data Remark: The bacterium was isolated from soil enriched with triethylene glycol. Cells to be assayed for oxidative activity were cultured at 30 degree C on a shaker for 72 to 96 hr in basal medium. Reference: Fincer, E.L.; Payne, W.J. (1962): Bacterial utilization of ether glycols. Appl. Microbiol. 10: 542-630. 3.6 BOD 5 ,COD OR RATIO BOD 5 /COD BOD5/COD Method: APHA standard methods: No. 219 GLP: No data Results: BOD5 = 92 mg/l COD = 1840 mg/g BOD5/COD = .049 Reference: Bridie, A.L. et al. (1979b): BOD and COD of some petrochemicals. Water Res. 13, 627-630. 3.7 BIOACCUMULATION Species: Cyprinus carpio (Fish, fresh water) Method OECD Guideline 305C “Bioaccumulation: Test for the Degree of Bioconcentration in Fish” Exposure Period: 42 days; Temperature 25 degree C; Concentration: 3 mg/l Elimination: No data GLP: No data BCF: 0.3 to 1.4 Reference: MITI (1992): Dipropylene glycol. Chemicals inspection and testing institute Japan: Data of existing chemicals based on the CSCL Japan. Japan Chemical Industry Ecology-Toxicology and Information Center, 2-56. Species: Cyprinus carpio (Fish, fresh water) Method OECD Guideline 305C “Bioaccumulation: Test for the Degree of Bioconcentration in Fish” Exposure Period: 42 days; Temperature 25 degree C; Concentration: 3 mg/l Elimination: No data GLP: No data BCF:
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Dipropylene glycol (SIDS)

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