World Headquarters

Hach Company

P.O.Box 389                                                                             MSDS No: M00042

Loveland, CO USA 80539

(970) 669-3050

                                 Material Safety Data Sheet

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1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

    Product Name: UniVer ® 3 Hardness Reagent

    Catalog Number: 96299

      Hach Company                                               Emergency Telephone Numbers:

      P.O.Box 389                                                (Medical and Transportation)

      Loveland, CO USA 80539                                     (303) 623-5716 24 Hour Service

      (970) 669-3050                                             (515)232-2533      8am - 4pm CST

    MSDS Number: M00042

    Chemical Name: Not applicable

    CAS No.: Not applicable

    Chemical Formula: Not applicable

    Chemical Family: Not applicable

    Hazard: May cause allergic reaction. May cause irritation.

    Date of MSDS Preparation:

      Day: 4

      Month: 05

      Year: 2002

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2. COMPOSITION / INFORMATION ON INGREDIENTS

    Sodium Carbonate

      CAS No.: 497-19-8

      TSCA CAS Number: 497-198   -

      Percent Range: 55.0 - 65.0

      Percent Range Units: weight / weight

      LD50: Oral rat LD50 = 4090 mg/kg

      LC50: Inhalation rat LC50 = 2300 mg/m3/2hr

      TLV: Not established

      PEL: Not established

      Hazard: Causes moderate eye irritation.

    Ethylenediaminetetraacetic Acid, Magnesium Disodium Salt

      CAS No.: 14402-88-1

      TSCA CAS Number: 14402-88 1   -

      Percent Range: 1.0 - 5.0

      Percent Range Units: weight / weight

      LD50: None reported

      LC50: None reported

      TLV: Not established

      PEL: Not established

      Hazard: May cause irritation.

    Other components, each

      CAS No.: Not applicable

      TSCA CAS Number: Not applicable

      Percent Range: < 1.0

      Percent Range Units: weight / weight

      LD50: Not applicable

      LC50: Not applicable

      TLV: Not established

     PEL: Not established

     Hazard: Any ingredient(s) of this product listed as "Other component(s)" is not considered a health hazard to the user of

     this product.

   Ammonium Chloride

     CAS No.: 12125-02-9

     TSCA CAS Number: 12125-02 9  -

     Percent Range: 5.0 - 15.0

     Percent Range Units: weight / weight

     LD50: Oral rat LD50 = 1650 mg/kg

     LC50: None reported

     TLV: 10 mg/m³

     PEL: 10 mg/m³

     Hazard: Causes severe eye irritation.

   Sodium Sulfite

     CAS No.: 7757837

                  --

     TSCA CAS Number: 7757-83-7

     Percent Range: 20.0 - 30.0

     Percent Range Units: weight / weight

     LD50: Oral mouse LD50 = 820 mg/kg

     LC50: None reported

     TLV: Not established

     PEL: Not established

     Hazard: May cause allergic reaction. May cause irritation.

   Calmagite

     CAS No.: 3147146

                  --

     TSCA CAS Number: 3147-14-6

     Percent Range: 0.1 - 1.0

     Percent Range Units: weight / weight

     LD50: Oral rat LD50> 5000 mg/kg

     LC50: None reported

     TLV: Not established

     PEL: Not established

     Hazard: May cause irritation.

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3. HAZARDS IDENTIFICATION

   Emergency Overview:

     Appearance: Light pink powder

     Odor: Odorless

      MAY CAUSE EYE, SKIN AND RESPIRATORY TRACT IRRITATION

      MAY CAUSE ALLERGIC RESPIRATORY REACTION IF SWALLOWED ORINHALED



   HMIS:

     Health: 2

     Flammability: 0

     Reactivity: 0

     Protective Equipment: X - See protective equipment, Section 8.

   NFPA:

     Health: 2

     Flammability: 0

     Reactivity: 0

     Symbol: Not applicable

   Potential Health Effects:

     Eye Contact: May cause irritation

     Skin Contact: May cause irritation

     Skin Absorption: None reported

        Target Organs: None reported

     Ingestion: May cause: gastrointestinal irritation nausea vomiting diarrhea allergic respiratory reaction

        Target Organs: None reported

     Inhalation: May cause: respiratory tract irritation allergic respiratory reaction

        Target Organs: None reported

     Medical Conditions Aggravated: Sulfites are strong sensitizers. Inhalation and ingestion may cause allergic espiratory

                                                                                                                  r

     reactions in asthmatics. Persons with respiratory conditions should take special care when working with products that

     contain sulfites.

     Chronic Effects: None reported

     Cancer / Reproductive Toxicity Information:

       This product does NOT contain any OSHA listed carcinogens.

       An ingredient of this mixture is: IARC Group 3: Non-classifiable

       Sulfites

       This product does NOT contain any NTP listed chemicals.

        Additional Cancer / Reproductive Toxicity Information: Contains: an experimental mutagen. Azo dye compounds

        have produced tumors in laboratory animals. Azo dye exposure has produced no known cases of cancer in humans.

        Casarett and Doull's Toxicology, 2nd ed. page 96-97.

   Toxicologically Synergistic Products: None reported

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4. FIRST AID

   Eye Contact: Immediately flush eyes with water for 15 minutes. Call physician.

   Skin Contact (First Aid): Wash skin with soap and plenty of water.

   Ingestion (First Aid): Do not induce vomiting. Give 1-2 glasses of water. Call physician immediately. Never give

   anything by mouth to an unconscious person.

   Inhalation: Remove to fresh air. Give artificial respiration if necessary. Call physician.

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5. FIRE FIGHTING MEASURES

   Flammable Properties: Does not burn, but may melt in a fire, releasing toxic fumes.

   Flash Point: Not applicable

   Method: Not applicable

   Flammability Limits:

     Lower Explosion Limits: Not applicable

     Upper Explosion Limits: Not applicable

   Autoignition Temperature: Not applicable

   Hazardous Combustion Products: Toxic fumes of: nitrogen oxides. sulfur oxides. carbon monoxide, carbon dioxide.

   Fire / Explosion Hazards: None reported

     Static Discharge: None reported.

     Mechanical Impact: None reported

   Extinguishing Media: Use media appropriate to surrounding fire conditions

   Fire Fighting Instruction: As in any fire, wear self-contained breathing apparatus pressure-demand and full protective

   gear.

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6. ACCIDENTAL RELEASE MEASURES

   Spill Response Notice:

     Only persons properly qualified to respond to an emergency involving hazardous substances may respond to a spill

   according to federal regulations (OSHA 29 CFR 1910.120(a)(v)) and per your company's emergency response plan and

   guidelines/procedures. See Section 13, Special Instructions for disposal assistance.

   Containment Technique: Stop spilled material from being released to the environment.

   Clean-up Technique: Scoop up spilled material into a large beaker and dissolve with water. Adjust to a p between 6 and

                                                                                                                 H

   9 with an acid, such as sulfuric or citric. Flush reacted material to the drain with a large excess of water. Decontaminate

   the area of the spill with a weak acid solution.

   Evacuation Procedure: Evacuate local area (15 foot radius or as directed by your facility's emergency response plan)

   when: a pound or more of loose powder is spilled. If conditions warrant, increase the size of the evacuation.

   Special Instructions (for accidental release): Not applicable

   304 EHS RQ (40 CFR 355): Not applicable

   D.O.T. Emergency Response Guide Number: None

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7. HANDLING / STORAGE

   Handling: Avoid contact with eyes skin clothing Do not breathe dust. Wash thoroughly after handling. Maintain

   general industrial hygiene practices when using this product.

   Storage: Protect from: moisture Keep away from: acids oxidizers

      Flammability Class: Not applicable

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8. EXPOSURE CONTROLS / PROTECTIVE EQUIPMENT

   Engineering Controls: Have an eyewash station nearby. Maintain general industrial hygiene practices when using this

   product.

   Personal Protective Equipment:

      Eye Protection: safety glasses with top and side shields

      Skin Protection: disposable latex gloves lab coat

      Inhalation Protection: adequate ventilation

   Precautionary Measures: Avoid contact with: eyes skin clothing Do not breathe: dust Wash thoroughly after handling.

   Protect from: moisture Keep away from: acids/acid fumes oxidizers

   TLV: Not established

   PEL: Not established

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9. PHYSICAL / CHEMICAL PROPERTIES

   Appearance: Light pink powder

   Physical State: Solid

   Molecular Weight: Not applicable

   Odor: Odorless

   pH: 5% solution = 10.0

   Vapor Pressure: Not applicable

   Vapor Density (air = 1): Not applicable

   Boiling Point: Not applicable

   Melting Point: 95°C; 203°F

   Specific Gravity (water = 1): 2.25

   Evaporation Rate (water = 1): Not applicable

   Volatile Organic Compounds Content: Not applicable

   Partition Coefficient (n-octanol / water): Not applicable

   Solubility:

     Water: Soluble

     Acid: Not determined

     Other: Not determined

   Metal Corrosivity:

     Steel: 0.000 in/yr

     Aluminum: 0.022 in/yr

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10. STABILITY / REACTIVITY

   Chemical Stability: Stable when stored under proper conditions.

   Conditions to Avoid: Heat Excess moisture

   Reactivity / Incompatibility: Incompatible with: acids oxidizers

   Hazardous Decomposition: Heating to decomposition releases toxic and/or corrosive fumes of: nitrogen oxides sulfur

   oxides ammonia carbon dioxide carbon monoxide

   Hazardous Polymerization: Will not occur.

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11. TOXICOLOGICAL INFORMATION

   Product Toxicological Data:

     LD50: None reported

     LC50: None reported

     Dermal Toxicity Data: None reported

     Skin and Eye Irritation Data: Sodium Carbonate: Eye rabbit 100mg/24H - MODERATE; Skin rabbit 100 mg/24H -

     MILD; Ammonium Chloride: Eye rabbit - 500 mg/24H - MILD; Eye rabbit 100 mg - SEVERE

     Mutation Data: Sodium Sulfite: Cytogenetic analysis, sperm morphology- mouse 25 mg/l; Mutation - human

     lymphocytes - 100 µmol/l

     Reproductive Effects Data: None reported

   Ingredient Toxicological Data: Sodium Carbonate: Oral rat LD50 = 4090 mg/kg; Sodium Sulfite: Oral mouse LD50 = 820

   mg/kg; Ammonium Chloride: Oral rat LD50 = 1650 mg/kg

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12. ECOLOGICAL INFORMATION

   Product Ecological Information: --

    No ecological data available for this product.

   Ingredient Ecological Information: Sodium Sulfite: Biological Oxygen Demand (BOD): 0.12 lb/lb; 2600 ppm/24,48 &

   96H/mosquito fish/TLm/fresh water

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13. DISPOSAL CONSIDERATIONS

   EPA Waste ID Number: None

   Special Instructions (Disposal): Work in an a proved fume hood. Dilute material with excess water making a weaker

                                                  p

   than 5% solution. Adjust to a pH between 6 and 9 with an acid, such as sulfuric or citric. Open cold water tap completely,

   slowly pour the reacted material to the drain. Allow cold water to run for 5 minutes to completely flush the system.

   Empty Containers: Rinse three times with an appropriate solvent. Dispose of empty container as normal trash.

   NOTICE (Disposal): These disposal guidelines are based on federal regulations andmay be superseded by more stringent

   state or local requirements. Please consult your local environmental regulators for more information.

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14. TRANSPORT INFORMATION

   D.O.T.:

      D.O.T. Proper Shipping Name: Not Currently Regulated

       --

      DOT Hazard Class: NA

      DOT Subsidiary Risk: NA

      DOT ID Number: NA

      DOT Packing Group: NA

   I.C.A.O.:

      I.C.A.O. Proper Shipping Name: Not Currently Regulated

       --

      ICAO Hazard Class: NA

      ICAO Subsidiary Risk: NA

      ICAO ID Number: NA

      ICAO Packing Group: NA

   I.M.O.:

      I.M.O. Proper Shipping Name: Not Currently Regulated

       --

      I.M.O. Hazard Class: NA

      I.M.O. Subsidiary Risk: NA

      I.M.O. ID Number: NA

      I.M.O. Packing Group: NA

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15. REGULATORY INFORMATION

   U.S. Federal Regulations:

     O.S.H.A.: This product meets the criteria for a hazardous substance as defined in the Hazard Communication Standard.

     (29 CFR 1910.1200)

     E.P.A.:

        S.A.R.A. Title III Section 311/312 Categorization (40 CFR 370): Immediate (Acute) Health Hazard

        S.A.R.A. Title III Section 313 (40 CFR 372): This product contains a chemical(s) subject to the reporting

        requirements of Section 313 of Title III of SARA.

         Ammonia

        302 (EHS) TPQ (40 CFR 355): Not applicable

          304 CERCLA RQ (40 CFR 302.4): Ammonium chloride: 5000 lbs.

          304 EHS RQ (40 CFR 355): Not applicable

          Clean Water Act (40 CFR 116.4): Ammonium chloride - RQ 5000 lbs.

          RCRA: Contains no RCRA regulated substances.

        C.P.S.C.: Not applicable

     State Regulations:

        California Prop. 65: No Prop. 65 listed chemicals are present in this product.

          Identification of Prop. 65 Ingredient(s): None

     Trade Secret Registry: Not applicable

     National Inventories:

        U.S. Inventory Status: All ingredients in this product are listed on the TSCA 8(b) Inventory (40 CFR 710).

          TSCA CAS Number: Not applicable

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16. OTHER INFORMATION

     Intended Use: Hardness determination

     References: 29 CFR 1900 - 1910 (Code of Federal Regulations - Labor). Air Contaminants, Federal Register, Vol. 54,

     No. 12. Thursday, January 19, 1989. pp. 2332-2983. TLV's Threshold Limit Values and Biological Exposure Indices for

     1992-1993. American Conference of Governmental Industrial Hygienists, 1992. Cassaret and Doull's Toxicology, 3rd Ed.

     New York: Macmillan Publishing Co., Inc., 1986. In-house information. IARC Monographs on the Evaluation of the

     Carcinogenic Risks to Humans. World Health Organization (Volumes 1-42) Supplement 7. France: 1987. Technical

     Judgment.

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Legend:

      NA - Not Applicable               w/w - weight/weight

      ND - Not Determined               w/v - weight/volume

      NV - Not Available                v/v - volume/volume

USER RESPONSIBILITY: Each user should read and understand this information and incorporate it in individual site safety

programs in accordance with applicable hazard communication standards and regulations.

THE INFORMATION CONTAINED HEREIN IS BASED ON DATA CONSIDERED T BE ACCURATE.

                                                             O

HOWEVER, NO WARRANTY IS EXPRESSED OR IMPLIED REGARDING THE ACCURACY OF THESE DATA

OR THE RESULTS TO BE OBTAINED FROM THE USE THEREOF.

HACH COMPANY ©2002