MATERIAL SAFETY DATA SHEET 01829                                  Pg. 1

Issued: 11/19/07

1.      Chemical Product and Contact Information

                                       HOPCALITE

     Product Name:                                                            Part Number:

                                                                                507-019

     LECO Corporation

     3000 Lakeview

     St. Joseph, Michigan 49085

     Information:      269-983-5531

     Chemtrec:         800-424-9300

     (Chemtrec Int'l: 703-527-3887)



2.      Composition/Information on Ingredients

                                     OSHA        ACGIH                                Typical %

Component         CAS No.            PEL (mg/m3) TLV (mg/m3)                          by Weight

Cupric Oxide      1317-38-0            0.1        0.2                                    90

Manganese Dioxide 1313-13-9             5          5                                     10



3.      Hazard Identification

                                     EMERGENCY OVERVIEW

                         Serious inhalation health risk. Grayish black granules.

Potential Health Effects

     EYES: Can cause irritation.

     SKIN: Can cause irritation.

     INHALATION: Can cause irritation of upper respiratory tract, discomfort, coughing, nasal

        discharge, and other symptoms similar to those of a bad cold. Drying of the mucous membranes

        might also be experienced.

     INGESTION: None identified.

     MEDICAL CONDITIONS AGGRAVATED: Wilson's disease.

     CHRONIC OVEREXPOSURE: None identified.

     ACUTE OVEREXPOSURE: See above.

     CARCINOGENICITY: None.









                                                                                   P/N: 507-019

MATERIAL SAFETY DATA SHEET 01829                                                               Pg. 2



4.      First Aid Measures

     EYES: Immediately wash with large amounts of water, occasionally lifting upper and lower lids.

        Get medical attention immediately.

     SKIN: Wash with soap and water.

     INHALATION: Remove to fresh air.

     INGESTION: Give two glasses of milk or water and induce vomiting by having patient touch the

        back of his throat with his finger. Call a physician immediately. Never give anything by mouth

        to an unconscious person.



5.      Fire Fighting Measures

     FLAMMABLE PROPERTIES: Non-flammable.

        Flash Point: Not available.      Method Used: Not applicable.

        Flammable Limits (% by Volume in Air):

               Lower: None.              Upper: None.

     AUTO-IGNITION TEMPERATURE: Not applicable.

     HAZARDOUS COMBUSTION PRODUCTS: None known.

     EXTINGUISHING MEDIA: Use extinguishing agent appropriate to surrounding fire.

     FIREFIGHTING INSTRUCTIONS: Not available.



6.      Accidental Release Measures

     SMALL/LARGE SPILL: Wear protective clothing. With a clean shovel, carefully place material

       into clean, dry container and cover; remove from area. Flush spill area with water.



7.      Handling and Storage

     HANDLING: Observe personal protective measures and exposure limits.

     STORAGE: Keep container closed. Suitable for any general chemical storage area.



8.      Exposure Controls/Personal Protection

     ENGINEERING CONTROLS: Good general or local exhaust ventilation should be provided to

        keep concentrations below exposure limits.

     RESPIRATORY PROTECTION: Respiratory protection required if airborne concentration exceeds

        TLV.

     SKIN AND HAND PROTECTION: Rubber gloves are recommended.

     EYE AND FACE PROTECTION: Safety goggles are recommended.

     OTHER PROTECTIVE EQUIPMENT: Not available.









                                                                                   P/N: 507-019

MATERIAL SAFETY DATA SHEET 01829                                                                 Pg. 3



9.       Physical and Chemical Properties

      APPEARANCE: Grayish black granules.

      BOILING POINT: Not established.

      FREEZE-MELT POINT: Not established.

      VAPOR PRESSURE (mm): Not established.

      VAPOR DENSITY (air = 1): Not available.

      SOLUBILITY IN WATER: Insoluble.

      SPECIFIC GRAVITY: Not established.

      pH: Not available.

      ODOR: Odorless.

      PERCENT VOLATILES: Not available.

      EVAPORATION RATE (Butyl Acetate = 1): Not established.



10.      Stability and Reactivity

      CHEMICAL STABILITY: Stable.

      INCOMPATIBILITY: Strong acids.

      HAZARDOUS DECOMPOSITION PRODUCTS: None known.

      HAZARDOUS POLYMERIZATION: None.



11.      Toxicological Information

      Not available.



12.      Ecological Information

      Not available.



13.      Disposal Consideration

      Comply with Federal, state and local environmental regulations. Cover to prevent blowing of dust.



14.      Transportation Information

      U.S.A. DOT: Not regulated.









                                                                                    P/N: 507-019

MATERIAL SAFETY DATA SHEET 01829                                                              Pg. 4



15.      Regulatory Information

U.S. FEDERAL REGULATIONS:

   TSCA STATUS:            On Toxic Substance Control Inventory.

   CERCLA REPORTABLE QUANTITY: None.

   SARA TITLE III:

      Section 302 Extremely Hazardous Substances:             None.

      Section 311/312 Hazardous Categories:                   Acute.

      Section 313 Toxic Chemicals:                            None.

   RCRA STATUS: Not regulated.



CANADIAN REGULATIONS:

  WHMIS: Not regulated.



16.      Other Information

      Hazard Index: (0 - 4, 4 = Extreme)

        Health: 2      Fire: 0         Reactivity: 0

      Prepared By:



                     Jason Whitt



Information herein is given in good faith as authoritative and valid; however, no warranty, expressed

or implied can be made.









                                                                                 P/N: 507-019