TEXANOL CAS NÂ°: 25265-77-4

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Biodegradation 83 Study End Point : BIODEGRADATION Chemical Name : Texanol CAS Number : 25265-77-4 Study type : LAB Geographic Area : USA Test Subject Organism Medium AQ Specification SLUDG Species/strain/system : Sludge from secondary effluent derived from a commercial waste treatment plant. Test Substance Purity Grade : 99% Test Method and Conditions Test method : description (An)aerobic : AEROB OECD Guideline 301 E (EEC/Annex V, Test C.3); GLP: yes Test Results Quantity Time Comments on result 10 % 9 d Degradation on day 9 33 % 70 % 90 % 19 d 34 d 42 d Degradation (by extrapolation) on day 19 Degradation on day 34 Degradation on day 42, when the test was terminated General Comments : The data indicate that 33% of the material degrades in the 10-day time window in which 70% degradation must occur in order for the chemical to be classified as readily biodegradable. 70% biodegradation did not occur until day 34. The results of this test indicate, however, that the test material is unlikely to persist in the environment, but may not be fully removed during wastewater treatment. References Primary Reference : #URKOD* Waston, H. M. Eastman Kodak Company Reports, ES-91-020, (1991) Secondary Reference : !SIDSP* OECD/SIDS. Screening Information Data Set (SIDS) of OECD High Production Volume Chemicals Programme, (1994) IRPTC Data Profile
84 Biodegradation Study End Point : BIODEGRADATION Chemical Name : Texanol CAS Number : 25265-77-4 Study type : LAB Geographic Area : USA Test Subject Organism Medium Specification MCR AQ SLUDG Species/strain/system : Acclimated sludge; secondary aeration basins of the Eastman Kodak Company Waste Water Treatment Plant in Rochester, New York. Test Substance Purity Grade : 99% Test Method and Conditions Test method : description (An)aerobic : AEROB Exposure Eastman Kodak Company, Health and Environment Laboratories Protocol; GLP: yes Exposure Period : 21 d Exposure comments : A 21-day biodegradation test was conducted utilizing two sources of acclimated sludge microorganisms. Acclimated organisms were used as the source of inoculum for biodegradation testing. (See general comments). Test Results Quantity Time Comments on result 57 % 11 d The extent of degradation of the test material, measured by carbon dioxide evolution, using microorganisms acclimated for 11 days in a single acclimation flask without the transfer of microorganisms. 19 % The extent of degradation using the transfer flask procedure General Comments : In one procedure, microorganisms were acclimated over a 21-day period by making a series of adaptive transfers to increasing concentrations of the test chemical through a series of nine acclimation flasks. In the second procedure, microorganisms were acclimated for 11 days in a single acclimation flask without transfer of organisms. Based on the results of this test, the material is classified as moderately biodegradable. All material would utimately be biodegraded. IRPTC Data Profile
Page 1 and 2: OECD SIDS TEXANOL FOREWORD INTRODUC
Page 3 and 4: 74 Identifiers, Physical and Chemic
Page 5 and 6: 76 Processes Processes Chemical Nam
Page 7 and 8: 78 Pathways into the Environment an
Page 9 and 10: 80 Concentration References Primary
Page 11: 82 Human Intake and Exposure Test R
Page 15 and 16: 86 Photodegradation Study End Point
Page 17 and 18: 88 Hydrolysis Study End Point : HYD
Page 19 and 20: 90 Mammalian Acute Toxicity Study E
Page 25 and 26: 96 Mammalian Toxicity KIDNY SIZE M
Page 27 and 28: 98 Mutagenicity Study End Point : M
Page 29 and 30: 100 Sensitization Study End Point :
Page 31 and 32: 102 Irritation Study End Point : IR
Page 33 and 34: 104 Irritation Test Substance Purit
Page 35 and 36: 106 Reproduction Study End Point :
Page 37 and 38: 108 Teratogenicity References Prima
Page 39 and 40: 110 Aquatic Acute Toxicity Test Met
Page 41 and 42: 112 Aquatic Toxicity Study End Poin
Page 43 and 44: 114 Aquatic Toxicity References Pri
Page 45 and 46: 116 Terrestrial Toxicity Study End

TEXANOL CAS NÂ°: 25265-77-4

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