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diethatyl ethyl (Antor) Herbicide Profile 3/85

                                  diethatyl ethyl
      CHEMICAL NAME:      N-chloroacetyl-N-(2,6-diethylphenyl)-glycine ethyl
                          ester (58)
      TRADE NAME(S):      Antor (58)
      FORMULATION(S):     Emulsifiable concentrate, 4 lbs/gal (56)
      TYPE:               Herbicide
      BASIC PRODUCER(S):  BFC Chemicals, Inc.
                          4311 Lancaster Pike
                          P.O. Box 2867
                          Wilmington, DE 19805
      STATUS:             General use
      PRINCIPAL USES:  Diethatyl ethyl is a selective preemergence
      herbicide with activity against many annual grasses and some
      broadleaved weeds.  Tolerant crops are alfalfa (established), carrots,
      cole crops, cotton, dry beans, flax, lima beans, peanuts, peas,
      potatoes, red beets, southern peas, soybeans, spinach, sugar beets, and
      tomatoes (transplanted) (58).
      APPLICATION METHOD(S):  Preplant incorporated at preemergence (58).
                                    I.  EFFICACY
      Important Weeds Controlled:  Barnyardgrass, blackgrass, annual
      bluegrass, crabgrass, panicum, foxtails, ground cherry, lovegrass,
      nightshade, pigweed, purslane, ryegrass, shepherd's purse, sowthistle,
      and others (8b).
           If applied preemergence rainfall is required to move it into the
      soil.  Absorbed by the emerging shoots as they grow through the treated
      soil.  Very limited postemergence activity (8b).
                              II.  PHYSICAL PROPERTIES
      MOLECULAR FORMULA:  C16 H22 NO3 Cl (58)
      MOLECULAR WEIGHT:   311.5 (58)
      PHYSICAL STATE:     White crystalline solid (pure compound) (58)
      MELTING POINT:      49 to 50 C (pure compound) (58)
      DECOMPOSITION TEMPERATURE:  Thermally stable at 240 C.  Significant
                                  volatilization above 150 C (pure compound)
                                  (58).
      VAPOR PRESSURE:     3.2 x 10-6 mmHg at 30 C (pure compound) (58)
      SOLUBILITY:         Soluble in water to the extent of 105 ppm (0.01%
                          w/v) at 25 C (pure compound) (58).
                          III.  HEALTH HAZARD INFORMATION
      OSHA STANDARD:  None established
      NIOSH RECOMMENDED LIMIT:  None established
      ACGIH RECOMMENDED LIMIT:  None established
      TOXICOLOGY
           A.  ACUTE TOXICITY
               DERMAL:  LD50 = 4,000 mg/kg (rabbit) (62).
                        LD50 = >4,556 mg/kg (male albino rabbit, technical
                          product); >6,834 mg/kg <10,250 mg/kg (female albino
                          rabbit, emulsifiable concentrate - 4 lb/gal) (58).
                        Skin irritation - minimally irritating (0.2/8.0)
                          (albino rabbit, technical product); slightly
                          irritating (albino rabbit, emulsifiable concentrate
                          - 4 lb/gal) (58).
               ORAL:    LD50 = 2300 - 3700 mg/kg (rat) (62).
                        LD50 (technical product) = 2318 mg/kg (male albino
                          rat), 3720 mg/kg (female albino rat), 1653 mg/kg
                          (male albino mouse), 4118 mg/kg (female albino
                          mouse) (58).
                        LD50 (emulsifiable concentrate) = 5042 mg/kg (male
                          albino rat), 6,834 mg/kg (female albino rat) (58).
               INHALATION:  LC50 = >28 mg/m3 air for 6 hr.  No adverse
                            effects noted during 5-day observation period
                            (58).
               EYES:    a.  Technical product
                              Eye irritation tests - Albino rabbits
                            Washed eyes - practically nonirritating (1.5/110)
                            Unwashed eyes - minimally irritating (12.5/110)
                        b.  Emulsifiable concentrate - 4 lb/gal
                              Eye irritation - Albino rabbits
                            Washed eyes - moderately irritating (32.5/110)
                            Unwashed eyes - Severely irritating (55/110)
                            (58).
           B.  SUBACUTE AND CHRONIC TOXICITY:
           No significant toxic effect at 2,000 ppm in a 90-day feeding study
      using rats.
           Long-term feeding studies indicate the no-effect level to be
      >1,000 ppm (58).
                         IV.  ENVIRONMENTAL CONSIDERATIONS
      Behavior In Or On Soils
      1.   Absorption and leaching characteristics in basic soil types:
             Absorbed by soil colloids.
      2.   Microbial breakdown:  Microorganisms appear to play a significant
             role in the soil degradation of diethatyl ethyl.
      3.   Loss form photodecomposition and/or volatilization:  Low.
      4.   Resultant average persistence at recommended rates:  Residual
             herbicidal activity persists approximately 6 to 10 weeks (58).
           Acute Oral LD50:  Mallard duck - >10,000 mg/kg
                             Bobwhite quail - >10,000 mg/kg
           Fish toxicity:  Rainbow trout - TL50 96 hr. 1.82 ppm
                           Bluegill - TL50 96 hr. 3.34 ppm (58).
           In 24-hr tests:  bluegill had TL 7.14 mg/l, NEL 2.4 mg/l; rainbow
                trout TL10.3 mg/l, NEL 1.0 mg/l.  Nontoxic at 43.5 ug/bee
                (62).
           Toxic to fish.  Do not use on muck soils (8b).
                       V.  EMERGENCY AND FIRST AID PROCEDURES
           The chemical information provided below has been condensed from
      original source documents, primarily from "Recognition and Management
      of Pesticide Poisonings", 3rd ed. by Donald P.  Morgan, which have been
      footnoted.  This information has been provided in this form for your
      convenience and general guidance only.  In specific cases, further
      consultation and reference may be required and is recommended.  This
      information is not intended as a substitute for a more exhaustive
      review of the literature nor for the judgement of a physician or other
      trained professional.
           If poisoning is suspected, do not wait for symptoms to develop.
      Contact a physician, the nearest hospital, or the nearest Poison
      Control Center.
      SYMPTOMS OF POISONING:  Unknown (58).
           SKIN CONTACT:  If product comes in contact with the skin,
                          immediately wash with soap and water (58).
           INGESTION:  Induce vomiting if swallowed (58).
           EYE CONTACT:  For eyes, immediately flush eyes with water for 15
      minutes and get medical attention promptly (58).
                        VI.  FIRE AND EXPLOSION INFORMATION
           Combustible.  Do not store near heat or open flame (58).
                                VII.  COMPATIBILITY
           May be tank-mixed with other herbicides (8b).
                             VIII.  PROTECTIVE MEASURES
      STORAGE AND HANDLING:  Technical product and formulations are stable
      for >2 years under normal conditions (62).  Avoid contact with skin and
      eyes.  Wash after handling (58).  Protect Antor 4 ES from frost.  Do
      not contaminate water, food, or feed by storage or disposal.  Open
      dumping is prohibited (56).
                        IX.  PROCEDURES FOR SPILLS AND LEAKS
                      IN CASE OF EMERGENCY, CALL, DAY OR NIGHT
                                   (800) 424-9300
                       PESTICIDE TEAM SAFETY NETWORK/CHEMTREC
                               X.  LITERATURE CITED
       8b. Thomson, W.T.  1981.  Agricultural chemicals - book 2:
               herbicides.  Revised ed.  Thomson Publications, Fresno, CA.
               274 pp.
      56.  Farm Chemicals Handbook, 70th ed.  1984.  R. T. Meister, G. L.
               Berg, C. Sine, S. Meister, and J. Poplyk, eds.  Meister
               Publishing Co., Willoughby, OH.
      58.  Weed Science Society of America, Herbicide Handbook Committee.
               1983.  Herbicide handbook of the weed science society of
               America, 5th ed.  Weed Science Society of America, Champaign,
               IL.  515 pp.
      62.  The Pesticide Manual:  A World Compendium, 7th ed.  1983.  C.R.
               Worthing, ed.  The British Crop Protection Council, Croydon,
               England.  695 pp.
      3/20/85