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zineb (Dithane Z-78, Parzate) Chemical Profile 2/85

                                       zineb

      CHEMICAL NAME:      Zinc ethylenebisdithiocarbamate (56)

      TRADE NAME(S):      Dithane Z-78, Parzate, Polyram Z (56)

      FORMULATION(S):     Wettable powder 80%, dust 10%, WP 70% (56).
                          Frequently tank-mixed or combined with other
                          fungicides (48).

      TYPE:               Carbamate fungicide

      BASIC PRODUCER(S):  FMC Corp., Agricultural Chemical Group
                          2000 Market St.
                          Philadelphia, PA 19103

                          Rohm and Haas Co.
                          Independence Mall West
                          Philadelphia, PA 19105

      STATUS:  General use

      PRINCIPAL USES:  Foliar protectant against a variety of diseases on
      fruits, vegetables, and ornamentals.  Also used as seed and soil
      treatments (48).
          Used to protect foliage and fruit of a wide range of crops against
      diseases such as potato and tomato blight, Botrytis spp., downy mildews
      and rusts (26).
          Used especially on citrus for control of greasy spot and to extend
      control of citrus rust mite.  Zineb also results from combining nabam
      (or diammonium or potassium ammonium analogs) with zinc sulfate in the
      spray tank (56).


                                   I.  EFFICACY

           To be developed.


                             II.  PHYSICAL PROPERTIES

      MOLECULAR FORMULA:  (C4 H6 N2 S4 Zn)x (26)

      MOLECULAR WEIGHT:   (275.8)x (26)

      PHYSICAL STATE:     Light-colored powder (pure compound) (26)

      MELTING POINT:      Decomposes without melting (pure compound) (26)

      VAPOR PRESSURE:     Negligible at room temperature (pure compound) (26)

      SOLUBILITY:         At room temperature c. 10 mg/l water (pure compound)
                          (26).


                          III.  HEALTH HAZARD INFORMATION

      OSHA STANDARD:  NA

      NIOSH RECOMMENDED LIMIT:  NA

      ACGIH RECOMMENDED LIMIT:  NA

      TOXICOLOGY

           A.  ACUTE TOXICITY

               ORAL:  LD50 = >5200 mg/kg (rat) (26)

           B.  SUBACUTE AND CHRONIC TOXICITY:

           To be developed.

                        IV.  ENVIRONMENTAL  CONSIDERATIONS

           Nonhazardous to honey bees.  Phytotoxic to zinc-sensitive plants
      such as tobacco and cucurbits (48).


                      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 sub-
      stitute 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 AND SIGNS OF POISONING

           Ethylene bis dithiocarbamates and (mono) thiocarbamates - Some of
      these agents are irritating to skin and respiratory mucous membranes,
      causing ITCHING, SCRATCHY THROAT, SNEEZING, and COUGH, if excessive
      amounts of spray or dust are inhaled.  Apart from this effect, toxic
      potential is low.  Neurotoxic and post-ethanol "Antabuse" reactions are
      not known to occur as a result of contact with these particular
      compounds (25).

           SKIN CONTACT:  Wash contaminating chemical from skin and hair with
      soap and water (25).

           INGESTION:  Give Syrup of Ipecac, followed by 1-2 glasses of
      water, to induce vomiting (adults:  30 ml; children under 12 years:  15
      ml) (25).

           INHALATION:  Remove subject to fresh air (16).

           EYE CONTACT:  Flush contaminant from eyes with fresh water for
      10-15 minutes (25).

      NOTES TO PHYSICIAN:

           If an ETHYLENE BIS DITHIOCARBAMATE, or (mono) thiocarbamate have
      been ingested:

      A.   Give SYRUP OF IPECAC, followed by 1-2 glasses of water, to induce
           vomiting (adults:  30 ml; children under 12 years:  15 ml).
           Following emesis, administer 30-50 gm ACTIVATED CHARCOAL to bind
           toxicant remaining in the gut.

      B.   Follow charcoal with SODIUM or MAGNESIUM SULFATE, 0.25 gm/kg, to
           remove toxicant from the gut by catharsis (25).


                        VI.  FIRE AND EXPLOSION INFORMATION

      GENERAL:   Flash point:  200 C OC.
           Special fire fighting procedures:  wear self-contained breathing
      equipment.  Use water spray to cool fire exposed containers.
           Unusual fire and explosion hazards:  Toxic and flammable gases are
      evolved when material is heated above 176 F (80 C) (16).

      EXTINGUISHER TYPE:  CO2, dry chemical, water fog (16).


                                VII.  COMPATIBILITY

           Compatible with other fungicides and insecticides except alkaline
      or mercury compounds (48).


                            VIII.  PROTECTIVE MEASURES

      STORAGE AND HANDLING:  Store in a cool, dry place.  Do not
      contaminate food, feed, domestic water supplies, streams, ponds or
      other water.  Keep out of reach of children.  Use only in accordance
      with label.  Do not reuse container (16).

      PROTECTIVE CLOTHING:  Impervious gloves, safety glasses; wear
      washable work clothes to be washed before reuse (16).

      PROTECTIVE EQUIPMENT:  If needed, use Wilson Agritox #2 respirator
      with R21 cartridge and R15 filter (16).


                       IX.  PROCEDURES FOR SPILLS AND LEAKS

                     IN CASE OF EMERGENCY, CALL, DAY OR NIGHT
                                  (800) 424-9300
                      PESTICIDE TEAM SAFETY NETWORK/CHEMTREC

           Using approved respirator, carefully sweep up material and use as
      per label on package for disposal.  Wash area with soap and water.  Dry
      with kitty litter or sawdust.  Unusable material must go to an approved
      chemical disposal site (16).


                               X.  LITERATURE CITED

      16.  Agway, Inc., Chemical Division.  Material safety data sheet.

      25.  Morgan, D.P.  1982.  Recognition and management of
               pesticide poisonings, 3rd ed.  U. S. Environmental Protection
               Agency, Washington, DC.  120 pp.

      26.  The Pesticide Manual:  A World Compendium, 6th ed.  1979.  C. R.
               Worthing, ed.  The British Crop Protection Council, Croydon,
               England.  655 pp.

      48.  Harding, W.C.  1979-80.  Pesticide profiles, part two:  fungicides
               and nematicides.  Univ. Maryland, Coop. Ext. Service Bull.
               283, 22 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.

      2/5/85