UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460

OFFICE OF PREVENTION, PESTICIDES

AND TOXIC SUBSTANCES


### MEMORANDUM
SUBJECT: Risk Assessment and Science Support Branch: Final Draft of Product Chemistry

Science Chapter For 1,4-Bis(bromoacetoxy)-2-butene RED, PC Code 0360, Case 3030, Barcode D251928. FROM: Robert Quick, Chemist

Risk Assessment and Science Support Branch Antimicrobials Branch(7510C) TO: Norm Cook, Chief

Risk Assessment and Science Support Branch Antimicrobials Division(7510C)
Attached please find the following documents for the final draft product chemistry science chapter for 1,4 Bis(bromoacetoxy)-2-butene: 1. Draft bibliography chapter (Norm Cook, Allen Vaughan, Najm Shamim) 2. Draft science chapter (Norm Cook, Allen Vaughan, Najm Shamim) This is the final draft of these documents and concurrence and sign-off is required.

### PRODUCT CHEMISTRY SCIENCE CHAPTER FOR

BIS (BROMOACETOXY)-2-BUTENE

Chemical Overview The following active ingredient is covered by this Registration Elgibility Document. Common Name: Bis (bromoacetoxy)-2-butene Chemical Name: Acetic Acid,bromo-2-butene-1,4-diyl ester CAS Registry Number: 20679-58-7 OPP Chemical Code: 035605 Molecular Formula: C 8 H 10 O 4 Br 2 Trade and Other Na mes: BBAB; Busan 1210 Basic Manufacturer: Buckman Laboratories International, Inc. 

### PRODUCT CHEMISTRY ASSESSMENT OF BIS (BROMOACETOXY)-2- BUTENE
A. Bis (bromoacetoxy)-2-butene is a biocide produced by an integrated manufacturing process. The physical and chemical properties of the technical grade product of the active ingredient are summarized below: 830.6302 Color Dark brown opaque 830.6303 Physical State Slightly viscous liquid 830.6304 Odor Halide or acidic odor 830.7200 Melting Point Not applicable. Product is a liquid 830.7220 Boiling Point 130 o C./±2.52 o C. at 5.0 mm Hg 830.7300 Bulk Density 1.7 gm/ml830.7840 Solubility in g/100 ml of solvent at 20-21 o C.

830.7860 water 0.063 acetone >50 dichloromethane >50 ethylacetate >50 n-hexane 0.589 toluene >50 methanol unstable 830.7950 Vapor Pressure 1.59x10 G 6 mm Hg at 20 o C 830.7370 Dissociation Constant Waiver granted 830.7550 Octanol/Water Partition Coefficient KOW=49.6 830.7560 830.7570 830.7000 pH 2.79 at 25 o C. 830.6313 Stability unstable at 50 o C± 2 o C. after 14 days no change after 28 days at 13-20 o C. stable to metal and metal ions at 20 o C. 830.6314 Oxidation/Reduction No reaction with: water monoammonium phosphate potassium permanganate turpentine zinc produces a 19 o C. rise in temperature 830.6315 Flammability 141 o C. at 1 atm. 830.6316 Explodability N/A 830.7100 Viscosity 16.1 cP at 20 o C. 10.4 cP at 40 o C. 830.6319 Miscibility N/A830.6320 Corrosion Not observed

830.6321 Dielectric Breakdown N/A

B. Product Identity, Composition and Analysis Data are available on the following: 830.1550 Product identity and composition 830.1600 Description of materials used to produce the product. 830.1620 Description of production process 830.1650 Description of formulation process 830.1670 Discussion of formation of impurities 830.1700 Preliminary Analysis 830.1750 Certified Limits 830.1800 Enforcement Analytical Method
The product identity, composition and analysis data have been reviewed by the EPA and found to be adequate. The manufacturing process is known and the discussion of impurities sufficiently elucidates the nature of the impurities and a CSF for the technical chemical have been accepted. Analyses are available for the technical chemical. No additional data are needed for product identity, composition and analysis for the technical chemical.REFERENCES

1. MRID#: 431888-01:Larry S. Cohen and Carl F. Watson. Performing Laboratory: Buckman Laboratories International, Inc.: April 8,1994. 2. MRID#: 434413-01: Larry S. Conway, Russ Fues and Carl F. Watson. Performing Laboratory: Buckman Laboratories International, Inc.: October 28,1994. 3. MRID#: 431763-01: David F. Wells. Performing Laboratory: Springborn Laboratories Inc.: March 9,1994. 4. MRID#: 433761-01: David F. Wells. Performing Laboratory: Springborn Laboratories Inc. August 29,1994. 5. MRID#: 433761-02: David F. Wells. Performing Laboratory: Springborn Laboratories, Inc. September 12, 1994. 6. MRID#: 433761-03: John Mao. Performing Laboratory: Springborn Laboratories,Inc. September 9, 1994. 7. MRID#: 433843-01: David F. Wells. Performing Laboratory: Springborn Laboratories Inc. August 29, 1994. 8. MRID#: 438153-01: David F. Wells. Performing Laboratory: Springborn Laboratories Inc. October 6, 1995.