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Dispersit is unique among U.S. [[Environmental Protection Agency]]-rated dispersants in being the only one rated as 100% effective against South Louisiana crude oil, and it is among the least toxic, according to EPA tests.<ref>{{cite news |url=http://www.epa.gov/emergencies/content/ncp/tox_tables.htm#dispersants |title=National Contingency Plan Product Schedule Toxicity and Effectiveness Summaries |publisher=Environmental Protection Agency |date=2010-05-13 |accessdate=2010-05-21}}</ref> By comparison, [[Corexit]], the oil dispersant used in the [[Deepwater Horizon oil spill]], is rated at 54.7% effective against South Louisiana crude oil and three times as lethal to silverfish and more than twice as lethal to shrimp.<ref>{{cite news |url=https://www.wired.com/wiredscience/2010/05/gulf-dispersants/ |title=Toxic Oil Dispersant Used in Gulf Despite Better Alternative |author=Brandon Keim |publisher=Wired |date=2010-05-05 |accessdate=2010-05-21}}</ref> |
Dispersit is unique among U.S. [[Environmental Protection Agency]]-rated dispersants in being the only one rated as 100% effective against South Louisiana crude oil, and it is among the least toxic, according to EPA tests.<ref>{{cite news |url=http://www.epa.gov/emergencies/content/ncp/tox_tables.htm#dispersants |title=National Contingency Plan Product Schedule Toxicity and Effectiveness Summaries |publisher=Environmental Protection Agency |date=2010-05-13 |accessdate=2010-05-21}}</ref> By comparison, [[Corexit]], the oil dispersant used in the [[Deepwater Horizon oil spill]], is rated at 54.7% effective against South Louisiana crude oil and three times as lethal to silverfish and more than twice as lethal to shrimp.<ref>{{cite news |url=https://www.wired.com/wiredscience/2010/05/gulf-dispersants/ |title=Toxic Oil Dispersant Used in Gulf Despite Better Alternative |author=Brandon Keim |publisher=Wired |date=2010-05-05 |accessdate=2010-05-21}}</ref> |
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On May 20, US Polychemical Corporation was reported to have received an order from [[BP]] for [[Dispersit SPC 1000]].<ref>{{cite news |url=http://www.epa.gov/oem/content/ncp/products/dispersi.htm |title=National Contingency Plan Product Schedule, Technical Product Bulletin #D-5: DISPERSIT SPC 1000 |publisher=Environmental Protection Agency |date=1999-04-22 |accessdate=2010-05-21}}</ref> US Polychemical reportedly stated it was able to produce {{convert|20,000|USgal|l}} a day in the first few days and increasing up to {{convert|60,000|USgal|l}} a day thereafter.<ref>{{cite news |url=https://www.nytimes.com/2010/05/21/science/earth/21disperse.html?ref=us |title=Agency Orders Use of a Less Toxic Chemical in Gulf |author=Campbell Robertson and Elisabeth Rosenthal |publisher=New York Times |date=2010-05-20 |accessdate=2010-05-21}}</ref> |
On May 20, US Polychemical Corporation was reported to have received an order from [[BP]] for [[Dispersit SPC 1000]].<ref>{{cite news |url=http://www.epa.gov/oem/content/ncp/products/dispersi.htm |title=National Contingency Plan Product Schedule, Technical Product Bulletin #D-5: DISPERSIT SPC 1000 |publisher=Environmental Protection Agency |date=1999-04-22 |accessdate=2010-05-21 |deadurl=yes |archiveurl=https://web.archive.org/web/20100522120306/http://www.epa.gov/oem/content/ncp/products/dispersi.htm |archivedate=2010-05-22 |df= }}</ref> US Polychemical reportedly stated it was able to produce {{convert|20,000|USgal|l}} a day in the first few days and increasing up to {{convert|60,000|USgal|l}} a day thereafter.<ref>{{cite news |url=https://www.nytimes.com/2010/05/21/science/earth/21disperse.html?ref=us |title=Agency Orders Use of a Less Toxic Chemical in Gulf |author=Campbell Robertson and Elisabeth Rosenthal |publisher=New York Times |date=2010-05-20 |accessdate=2010-05-21}}</ref> |
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==See also== |
==See also== |
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Revision as of 10:54, 11 September 2017
Dispersit SPC 1000 or Dispersit is a dispersant used for oil spills, produced by U.S. Polychemical Corporation.[1]
Composition
It combines a predominantly oil-soluble surfactant (such as polyethylene glycol mono-oleate) with a predominantly water-soluble surfactant (such as cocoamide) and a co-solvent for coupling a mixture of the predominantly oil-soluble surfactant and the oil.[2]
Alternatives
Alternative dispersants which are approved by the EPA are listed on the National Contingency Plan Product Schedule[3] and rated for their toxicity and effectiveness.[4]
Deployments
2010 Gulf of Mexico oil spill
Dispersit is unique among U.S. Environmental Protection Agency-rated dispersants in being the only one rated as 100% effective against South Louisiana crude oil, and it is among the least toxic, according to EPA tests.[5] By comparison, Corexit, the oil dispersant used in the Deepwater Horizon oil spill, is rated at 54.7% effective against South Louisiana crude oil and three times as lethal to silverfish and more than twice as lethal to shrimp.[6]
On May 20, US Polychemical Corporation was reported to have received an order from BP for Dispersit SPC 1000.[7] US Polychemical reportedly stated it was able to produce 20,000 US gallons (76,000 L) a day in the first few days and increasing up to 60,000 US gallons (230,000 L) a day thereafter.[8]
See also
References
- ^ "Polychem Dispersit". U.S. Polychemical Corporation. Retrieved 2010-05-21.
- ^ US patent 6261463, Savarimuthu M. Jacob and Robert E. Bergman & Robert E. Bergman, "Water based oil dispersant", published 2002-01-17, issued 2001-07-17, assigned to U.S. Polychemical Marine Corporation
- ^ "National Contingency Plan Product Schedule". Environmental Protection Agency. 2010-05-13. Archived from the original on 2010-05-21. Retrieved 2010-05-21.
{{cite news}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ "National Contingency Plan Product Schedule Toxicity and Effectiveness Summaries". Environmental Protection Agency. 2010-05-13. Retrieved 2010-05-21.
- ^ "National Contingency Plan Product Schedule Toxicity and Effectiveness Summaries". Environmental Protection Agency. 2010-05-13. Retrieved 2010-05-21.
- ^ Brandon Keim (2010-05-05). "Toxic Oil Dispersant Used in Gulf Despite Better Alternative". Wired. Retrieved 2010-05-21.
- ^ "National Contingency Plan Product Schedule, Technical Product Bulletin #D-5: DISPERSIT SPC 1000". Environmental Protection Agency. 1999-04-22. Archived from the original on 2010-05-22. Retrieved 2010-05-21.
{{cite news}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ Campbell Robertson and Elisabeth Rosenthal (2010-05-20). "Agency Orders Use of a Less Toxic Chemical in Gulf". New York Times. Retrieved 2010-05-21.