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dibenz(a,h)anthracene

CAS Number: 53-70-3

Basic Information

The chemical structure of dibenz(a,h)anthracene Synonym(s): 1,2:5,6-benzanthracene; 1,2:5,6-dibenz[a]anthracene; 1,2,5,6-Dibenzanthracene; 1,2:5,6-dibenzoanthracene; 1,2,5,6-dba; Benz[a,h]anthracene; Dibenz[a,h]anthracene; Dibenz[a,h]anthracene ; dibenzo[a,h]anthracene; DBA; DB(A,H)A
Formula: C22H14
 Molecular Weight: 278.353
 Boiling Point (°C): 524
 Melting Point (°C): 266
 Contaminant Type: dibenz(a,h)anthracene is a polyclyclic aromatic hydrocarbon.
Notes: COLORLESS PLATES OR LEAFLETS RECRYSTALLIZED FROM ACETIC ACID; SOLN IN CONCENTRATED SULFURIC ACID IS RED; CRYSTALS MAY BE MONOCLINIC OR ORTHORHOMBIC

Solubility (in water)

  • Solubility: 5.00E-04 mg/kg ao
    Temperature (°C): 29
  • Solubility: 5.00E-08 g/100ml d
  • Solubility: 5.00E-04 mg/l ak

Half-Life (in soil unless otherwise noted)

  • t1/2: 16 months ak
    Temperature (°C): 20
     Environment: abiotic degradation in sandy loam in the dark at 700 mg/kg
  • t1/2: 18-21 days al
    Environment: biodegradation in soils
  • t1/2: 16 months ak
    Temperature (°C): 20
     Environment: biodegradation in sandy loam in the dark at 700 mg/kg
  • t1/2: 0.99-2.58 years f
    Environment: Based upon aerobic soil die-away test data

Toxicity Effects

  • Organism Type: Crustaceans ak
    Scientific Name: Neanthes arenaceodentata
     Toxicity: >1 ppm
     Test: 96h LC50,S

Soil Organic Carbon/Water Partition Coefficients

  • Koc: Log Koc: 6.52 ay

Octanol-Water Partition Coefficients

  • Log Kow: 6.84 aj
  • Log Kow: 6.86 ay
  • Log Kow: 5.97 ak

Work Cited

d ChemFinder. Cambridge MA: CambridgeSoft Corporation. Retrieved November, 2003 from http://chemfinder.cambridgesoft.com
f Howard, P. H., R. S. Boethling, W. F. Jarvis, W. M. Meylan, and E. M. Michalenko. 1991. Handbook of Environmental Degradation Rates. Lewis Publishers., Chelsea, MI.
aj RAIS. 2005. Risk Assessment Information System. Pages retrieved April, 2005 from http://risk.lsd.ornl.gov/tox/rap_toxp.shtml. U.S. Department of Energy, Office of Environmental Management, Oak Ridge Operations (ORO) Office, Bechtel Jacobs Company LLC, Oak Ridge, TN.
ak Verschueren, K. 2001. Handbook of Environmental Data on Organic Chemicals, 4th edition. John Wiley & Sons, Inc., New York.
al Speclab.com. 2003. Spectrum chemcial fact sheet. Pages retrieved April 2005 from http://www.speclab.com/compound/. Spectrum Laboratory Inc, Ft. Lauderdale, FL and Savannah, GA.
ao Santodonato, J., P. Howard, D. Basu, S.D. Lee, Si Duk, and L. Grant. 1981. Health and ecological assessment of polynuclear aromatic hydrocarbons. Pages 1-364 in Journal of environmental pathology and toxicology, volume 5(1). Park Forest South, Ill. : Pathotox Publishers.
ay Nagpal, N. K. 1993. Ambient Water Quality Criteria For Polycyclic Aromatic Hydrocarbons (PAHs). Pages retrieved April 2005 from http://www.env.gov.bc.ca/wat/wq/BCguidelines/pahs/index.html. British Columbia Ministry of Environment.