Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Emergency Response

FINASOL OSR 52 IBC

TECHNICAL PRODUCT BULLETIN #2025-D-003
USEPA, OEM REGULATIONS IMPLEMENTATION DIVISION
ORIGINAL LISTING DATE: JANUARY 15, 2025
"FINASOL OSR 52 IBC"

DISPERSANT DATA SUBMISSION TECHNICAL BULLETIN FOR § 300.915 DATA AND INFORMATION REQUIREMENTS
PRODUCT NAME: FINASOL OSR 52 IBC
CATEGORY: DISPERSANT
GENERAL PRODUCT INFORMATION [§ 300.915(a)]
(1) NAME, ADDRESS, EMAIL, AND TELEPHONE NUMBER OF SUBMITTER [§ 300.915(a)(1)]
TotalEnergies Petrochemicals & Refining USA, Inc.
1201 Louisiana Street, Suite 1800
Houston, TX 77002
Email: Nathan Williams: nathan.williams@totalenergies.com
Phone: 713-483-5044
Point of Contact: Nathan Williams
(2) SUBMITTER IDENTIFICATION [§ 300.915(a)(2)]
Submitter identity and documentation of that identity, as the manufacturer of the product; vendor, importer, or distributor of the product; and/or designated agent acting on behalf of the manufacturer provided by the submitter on October 29, 2024.
(3) PRODUCT NAME, BRAND, OR TRADEMARK [§ 300.915(a)(3)]
FINASOL OSR 52 IBC
(4) NAME, ADDRESS, EMAIL, AND TELEPHONE NUMBER OF SUPPLIERS [§ 300.915(a)(4)]
TotalEnergies Petrochemicals & Refining USA, Inc.
1201 Louisiana Street, Suite 1800
Houston, TX 77002
Email: Juan Aguire juan.aguirre@totalenergies.com
Telephone: 713-826-8434
Point of Contact: Juan Aguire
(5) SAFETY DATA SHEET (SDS) [§ 300.915(a)(5)]
The Safety Data Sheet for the product:  FINASOL OSR 52 IBC SDS (pdf) (9.28 MB)  

(6) PRODUCT STORAGE [§ 300.915(a)(6)]
1. Maximum storage temperature (e.g., oF and/or oC): 45oC (113oF)
2. Minimum storage temperature (e.g., oF and/or oC): -5oC (23oF)
3. Optimum storage temperature (e.g., oF and/or oC): 5-35oC (41-95oF)
4. Humidity (e.g., g/kg):

  • Maximum humidity: 90%
  • Minimum humidity: 30%
  • Optimal humidity: 70%

5. Other relevant conditions for product storage: Direct sunlight, high humidity and saltwater can cause damage to containers; hence, their exposure should be minimized as far as possible. It is, therefore, preferable to store dispersant indoors (i.e., inside warehouse facilities that provide adequate ventilation). If outdoors storage is unavoidable, adequate shelter/cover should be provided. Exposure to temperature extremes and fluctuations should also be avoided wherever feasible. In locations where high or low ambient temperatures are encountered, the use of climate-controlled facilities may be necessary.
6. Description of the consequences to performance if product is not stored within these limits: Phase separation and/or loss of efficiency may occur if the product is not stored within these limits.

(7) SHELF LIFE STORAGE CONDITIONS [§ 300.915(a)(7)]
The initial shelf life is 5 years when the containers remain capped and sealed to prevent contamination and evaporation of solvents and are stored as per advised storage conditions. After storage, stir the product and ensure homogeneity before use.

This 5-year value for initial shelf life derives from a study from French laboratory CEDRE presented at Arctic and Marine Oilspill Program (AMOP) 1997. This study, based on the quality controls carried out on French Navy dispersant stockpiles (including periodic control every 5 years after purchase), concludes that FINASOL OSR 52 is stable and keeps its efficiency in the range 0 to 6 years. Another study conducted at CEDRE laboratory on FINASOL OSR 52 samples aged from 7 to 25 years has showed that the efficiency remained unaffected and still within the range required for marine dispersants in France. This is reasonably assumed to be also applicable to FINASOL OSR 52 IBC. Past this five year period, extended shelf life may be granted upon re-testing of the product efficiency (and toxicity if required). Guidance from IPIECA's support document "Dispersant Storage, Maintenance, Transport and Testing" should be [reviewed during] re-testing process:

  • Testing should be performed on samples representative of 10% of stock volume (e.g. 1 IBC tote out of 10 for a same production batch)
  • Sampling can be performed with the help of a sampling thief
  • Samples should be stored in compatible (glass or HOPE) and distinctly labelled bottles, with reference from the original container
  • Tests to be performed and pass criteria are the same as those required for product [listing] on NCP Product Schedule

(8) PRODUCT LABEL [§ 300.915(a)(8)]
A sample product label for all name(s), brand(s), and/or trademark(s) under which the product is to be sold that includes manufacture and expiration dates, and conditions for storage:  FINASOL OSR 52 IBC Label (pdf) (433.32 KB)  

(9) PRODUCT CATEGORY AND PROCESSES [300.915(a)(9)]
A marine dispersant formulation is essentially a solution of different surfactants in a mineral solvent (dearomatized kerosene cut), as can also be inferred from the product composition. As a consequence, its efficacy derives mostly from the properties of surfactant molecules. On top of being a "thinner" for the (viscous) surfactants to allow for a good operability pumpability/spray ability of the dispersant, the solvent acts as "carrier" for the surfactants to soak into the oil slick as both the solvent and crude oil share similar (low} polarities and thus mutual solubility.

Once brought in contact with the oil slick, the amphiphilic surfactant molecules scatter at the oil/water interface, thus lowering the surface tension between oil and water. This reduces the energy needed to create additional surface between both phases, allowing for the wave movements to bring sufficient energy to create droplets of oil in water, stabilized by the surfactant (oil in water emulsion). This process can repeat iteratively, until the size distribution of the droplets makes them small enough (typically below 45 - 70 µm in diameter) to remain dispersed and diluted in the water column by the waves' energy. Once dispersed, the repulsive interactions between droplets due to the surfactant layer at the water/oil interface prevents the coalescence of oil droplets leading to the re-creation of another oil slick. Ultimately, the combined action of marine currents and agitation will disperse and dilute the droplets into a larger volume of water.

(10) RECOMMENDED PRODUCT USE PROCEDURES [§ 300.915(a)(10)]

1. Application Method: FINASOL OSR 52 IBC is applied effectively by aircraft or helicopter, from boats, or by subsea injection. Its viscosity has been chosen to be adapted to the usual dispensing systems (nozzles, ramps, nozzle canon, SSDI wand, etc.). FINASOL OSR 52 IBC is intended to be used pure, however, it can be prediluted with up to 10% seawater if needed to reduce its viscosity in cold weather conditions.
Spraying must not give too fine or atomized droplets as in fog. It must be done as moderately coarse droplets, with diameters in the range of 500 - 1000 µm, whether application is by surface vessel or aircraft.

2. Concentration / Application Rate: It is generally recommended to use marine dispersants, including FINASOL OSR 52 IBC in particular, with a 1:5 to 1:50 dispersant-to-oil ratio. A 1:20 ratio would correspond approximately to 15 gallons per ton of oil.
However, this recommendation may be adapted according to the nature of the oil, its state of weathering, temperature, thickness of the slick, and other circumstances of the spill, based on in-situ trials on a small scale.

3. Conditions for Use: When treating a spill with FINASOL OSR 52 IBC, it is recommended to start the treatment as early as possible, to avoid a thickening of the slick due to either evaporation of light fractions or formation of water-in-oil emulsion.

Apart from its direct influence on both oil and dispersant viscosities, which are treated separately in Application Method (above) and Application Restrictions (below), water temperature (and ice coverage if relevant) have not been identified as having a decisive influence on FINASOL OSR 52 IBC efficiency, as can be observed in efficiency results at 5oC and inferred from extrapolating from results obtained with FINASOL OSR 52 in a study conducted by Arctic Response Technology. Use only receptacles, joints, pipes, etc. which are resistant to hydrocarbons. Do not spray at high pressure (> 3 bar).

Application Restrictions: It is generally considered for marine dispersants in general, including FINASOL OSR 52 IBC in particular, that:

  • Use should be restricted to pollutants with a viscosity not higher than 10000 mm2/s, preferably not higher than 5000 mm2/s (at sea temperature at the location of the spill). For pollutants whose viscosity is enclosed between 5000 and 10000 mm2/s, result is uncertain, and testing is recommended before treating a spill.
  • Sea conditions must allow sufficient energy for breaking the oil into droplets small enough to be dispersed. Oil spill dispersion is considered difficult if not impossible for sea conditions below Beaufort 3 level. Inversely, high winds and/or rough sea (Beaufort 7 or above level) will make dispersant application difficult if not impossible both by boat or aircraft (this is usually taken into account in the decision matrixes for dispersant use). FINASOL OSR 52 IBC has been optimized to treat spills in salty water. Efficiency may be reduced in case of application in low salinity water (below 20 psu).
  • Although this may depend on local policies and On Scene Coordinator appreciation, it is usually recommended to use marine dispersants at sea and not too close from the shore (or from fish/shell farms) and/or in too shallow waters.

Containment, Collection, Recovery, and Disposal: FINASOL OSR 52 IBC is designed to be used as dispersant. As such, it is readily dispersed in sea water and aims at dispersing oil into small droplets and dilute it in sea water. As a consequence, there is no need to consider containment, collection, recovery or disposal for FINASOL OSR 52 IBC after use. Disposal of unused (e.g. expired) product should at all times comply with the requirements of environmental protection and waste disposal legislation and any regional local authority requirements. Disposal should be made via a licensed waste disposal contractor.

(11) ENVIRONMENTAL FATE OF COMPONENTS [§ 300.915(a)(11)]
The submitter provided available information on environmental fate, including any known measured data, methodologies, and supporting documentation, on the persistence, bioconcentration factor, bioaccumulation factor, and biodegradability of the product and all of its components in the environment on October 29, 2024.

(12) PHYSICAL/CHEMICAL PROPERTIES [§ 300.915(a)(12)]

Analysis Result Unit Method
(i) Physical State and Appearance: Light yellow liquid at ambient temperature Visual Liquid
(ii) Vapor Pressure 0.6 psi @ 100oF ASTM D-323
(iii) Flash Point >100 oC ASTM D-56
(iv) Pour Point -53 oC ASTM D-445
(v) Viscosity 31.7 cst @ 40oF ASTM D-97
(vi) Specific Gravity 1.0260 @ 60oF ASTM D-287
(vii) Particle Size for Solid Components NA NA NA
(viii) pH 6.88   Probe

(13) IDENTIFICATION AND CONCENTRATION OF PRODUCT COMPONENTS [§ 300.915(a)(13)]
Under § 300.950, you may only claim as Proprietary Business Information (PBI) the concentration, the maximum, minimum, and average weight percent; and the units of each component of the total formulation as identified in § 300.915(a)(13) and (14) and as applicable. All other product information submitted to EPA as required under § 300.915 and § 300.955 will be available for public disclosure upon submission, without further notice to the submitter.

Chemical Name CAS # Concentration Percentage by Weight (PBI) Intended Function
Sorbitan Monooleate (SMO) 1338-43-8 MAX/MIN/AVG% - PBI Surfactant
Sorbitan Monooleate, ethoxylated (SMO-E) 9005-65-6 MAX/MIN/AVG% - PBI Surfactant
Sorbitan Trioleate (STO) 26266-58-0 MAX/MIN/AVG% - PBI Surfactant
Sodium Dioctyl sulfosuccinate 70% in hydrotreated light aliphatic hydrocarbons (DOSS 70%) 577-11-7
64742-47-8
MAX/MIN/AVG% - PBI Surfactant
Dipropylene Glycol Methyl Ether 34590-94-8 MAX/MIN/AVG% - PBI Solvent
Hydrotreated Light Aliphatic Hydrocarbons 64742-47-8 MAX/MIN/AVG% - PBI Solvent
Demineralized Water NA MAX/MIN/AVG% - PBI Solvent

(14) MICROORGANISMS, ENZYMES AND/OR NUTRIENTS [§ 300.915(a)(14)]
Product name OSD contains no microorganisms, enzymes, or nutrients.

(15) DATA, METHODOLOGY AND SUPPORTING DOCUMENTATION FOR LEVELS OF THE FOLLOWING [§ 300.915(a)(15)]:

Analyte Result (mg/L) Method
Arsenic <0.0345 SW846 6020B (ICP/MS)
Barium <0.0671 SW846 6020B (ICP/MS)
Cadmium <0.0120 SW846 6020B (ICP/MS)
Chromium <0.0280 SW846 6020B (ICP/MS)
Copper <0.194 SW846 6020B (ICP/MS)
Lead <0.0184 SW846 6020B (ICP/MS)
Mercury <0.000070 SW846 7470A (CVAA)
Nickel 0.0437 SW846 6020B (ICP/MS)
Selenium <0.0133 SW846 6020B (ICP/MS)
Silver <0.00780 SW846 6020B (ICP/MS)
Vanadium <0.00860 SW846 6020B(ICP/MS)
Zinc 0.389 SW846 6020B (ICP/MS)
Cyanide 0.0642 EPA Kelada Method (EPA-821-B-01-009)
Chlorinated hydrocarbons

[Exception: 1,1,2-Trichloroethane]
<Method Detection Limit

[2.80]
SW846 8260C (GC/MS); SW846 8270E (GC/MS)
Pesticides <Method Detection Limit SW846 8081B (GC)
Polychlorinated biphenyls (PCBs) <Method Detection Limit SW846 8082A (GC)
Polycyclic aromatic hydrocarbons (PAHs) <Method Detection Limit SW846 8270E (GC/MS)

(16) PROHIBITED AGENT CERTIFICATION [§ 300.915(a)(16)]
Certification including data, methodology and supporting documentation indicating that product does not contain any prohibited agents identified in § 300.910(e) provided by the submitter on 10/29/2024.

(17) LABORATORY INFORMATION [§ 300.915(a)(17)]
Information about the accredited laboratory that conducted the required tests, including:
(i)Name of the laboratory, address, contact, name, email, and phone number; and (ii) the national and/or international accreditations held by the laboratory that are applicable to test(s) performed were provided by the submitter on October 29, 2024; and January 8, 2025.

(18) LABORATORY TEST DATA AND REPORTS [§ 300.915(a)(18)]
All test data and calculations were provided by the submitter on October 29, 2024.

(19) PRODUCTION VOLUMES [§ 300.915(a)(19)]
Annual production volume: 500,000 gallons (= 2,000 m3) per year
Average amount that could be produced in a day: 3,800 gallons after initial batch run (= 14 m3) for routine ("average") production. Daily production volumes are indicative only as the blending process may extend over one day (in which case daily production values are given as a pro-rata temporis of weekly production volume).
Maximum amount that could be produced in a day: 26,000 gallons (= 100 m3) after initial batch run in case of emergencies. These figures are given assuming that the corresponding raw materials are available in sufficient volume at production site. Timeframe needed to reach max production volume is estimated to be 60 days to allow for sufficient supply of all needed raw materials. Quantity and timeframe for the initial batch run is 6,000 gallons (= 24 m3) in 4 weeks. Weekly production volume after the initial batch run is 19,000 gallons (= 72 m3).

(20) DESIGN FOR THE ENVIRONMENT (now Safer Choice) [§ 300.915(a)(20)]
Not provided.

(21) INTERNATIONAL PRODUCT TESTING, DATA, AND/OR CERTIFICATIONS [§ 300.915(a)(21)]
Used as a marine dispersant in France and Spain based on the below results:

Test Method Result Requirement
Efficiency (IFP "Flow Through" Method) NF T90-345 77.6% >60%
Toxicity
Palaemonetes varians (marine shrimp)
NF T90-349 LC50 > 10,000 ppm
(LC50 Noramium DA 50 = 49 ppm)
LC50 (dispersant) > 10x
LC50 (Noramium DA 50 (reference toxicant))
Biodegradability NF T90-346 >100% (%Theoretical CO2 = 112%) based on CO2 evolution >50% after 28 days
PRODUCT CATEGORY TESTING AND LISTING REQUIREMENTS [§ 300.915(b)]

DISPERSANT EFFICACY TEST AND LISTING CRITERIA [§ 300.915(b)(1)]
Listing Criteria: Dispersant must demonstrate for each temperature a Dispersant Effectiveness (DE) at the 95% lower confidence level (LCL95) greater than or equal to:

  • ≥70% for Strategic Petroleum Reserve Bryan Mound test oil at 5oC; and
  • ≥75% for Strategic Petroleum Reserve Bryan Mound test oil at 25oC.
Test Oil Dispersant Effectiveness
Temperature at 5oC
Dispersant Effectiveness
Temperature at 25oC
SPR Bryan Mound 84.10% DELCL95 88.4% DELCL95

DISPERSANT TOXICITY TESTS AND LISTING CRITERIA [§ 300.915(b)(2)]
Listing Criteria: Dispersant tested alone must demonstrate:

  • For acute toxicity a median lethal concentration for 50% of the test species (LC50) at the lower 95% confidence interval greater than 10 ppm.
  • For developmental toxicity the inhibition concentration for 50% of the test species (IC50) at the lower 95% confidence interval greater than 1 ppm; and
  • For sub-chronic toxicity the No Observed Effect Concentration (NOEC) greater than 1 ppm.
Acute Toxicity Test Data Summary
Material Tested Saltwater Species LC50 (ppm) with 95% Confidence Interval (CI)
Median
LC50 (ppm) with 95% Confidence Interval (CI)
Lower CI
LC50 (ppm) with 95% Confidence Interval (CI)
Upper CI
Duration
Dispersant Only Menidia beryllina 65.36 60.78 70.28 96-hr
Dispersant Only Americamysis bahia 18.08 16.21 20.17 48-hr
Dispersant/Reference Oil Mixture Menidia beryllina 14.72 12.48 17.35 96-hr
Dispersant/Reference Oil Mixture Americamysis bahia 16.63 14.66 18.87 48-hr
SDS Reference Toxicant Menidia beryllina 7.76 7.18 8.38 96-hr
SDS Reference Toxicant Americamysis bahia 28.28 27.57 29.01 48-hr
Developmental Test Data Summary
Material Tested Saltwater Species IC50 (ppm) with 95% Confidence Interval (CI)
Median
IC50 (ppm) with 95% Confidence Interval (CI)
Lower CI
IC50 (ppm) with 95% Confidence Interval (CI)
Upper CI
Duration
Dispersant Arbacia punctulata 15.19 14.56 15.63 72-hr
Copper Sulfate Reference Toxicant Arbacia punctulata 11.62 11.60 11.65 72-hr
Sub-chronic Test Data Summary
Material Tested Saltwater Species LC50 (ppm) with 95% Confidence Interval (CI)
Median
LC50 (ppm) with 95% Confidence Interval (CI)
Lower CI
LC50 (ppm) with 95% Confidence Interval (CI)
Upper CI
Duration
Dispersant Menidia beryllina 28.28 23.78 33.64 7-day
Dispersant Americamysis bahia 22.66 19.97 25.72 7-day
Material Tested Saltwater Species IC50 (ppm) with 95% Confidence Interval (CI)
Median
IC50 (ppm) with 95% Confidence Interval (CI)
Lower CI
IC50 (ppm) with 95% Confidence Interval (CI)
Upper CI
Duration
Dispersant Menidia beryllina 27.20 23.04 40.98 7-day
Dispersant Americamysis bahia 18.15 15.56 19.97 7-day
Material Tested Saltwater Species IC25 (ppm) with 95% Confidence Interval (CI)
Median
IC25 (ppm) with 95% Confidence Interval (CI)
Lower CI
IC25 (ppm) with 95% Confidence Interval (CI)
Upper CI
Duration
Dispersant Menidia beryllina 16.13 13.47 19.84 7-day
Dispersant Americamysis bahia 12.29 6.12 14.87 7-day
Material Tested Saltwater Species LOEC (ppm)
Survival
LOEC (ppm)
Growth
Duration
Dispersant Menidia beryllina 25 10 7-day
Dispersant Americamysis bahia 25 10 7-day
SDS Reference Toxicant Menidia beryllina 20 15 7-day
SDS Reference Toxicant Americamysis bahia 20 20 7-day
Material Tested Saltwater Species NOEC (ppm)
Survival
NOEC (ppm)
Growth
Duration
Dispersant Menidia beryllina 25 10 7-day
Dispersant Americamysis bahia 25 10 7-day
SDS Reference Toxicant Menidia beryllina 15 10 7-day
SDS Reference Toxicant Americamysis bahia 15 15 7-day

Emergency Response

  • Emergency Response at EPA
  • Current and Past Responses
  • Response Tools
  • Response Partners
  • Emergency Operations Center
  • Consequence Management Advisory Team
  • Emergency Management Highlights
Contact Us about Emergency Response
Contact Us about Emergency Response to ask a question, provide feedback, or report a problem.
Last updated on May 2, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.