NAPCO CHEMICAL COMPANY, INC. Material Safety Data Sheet

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1 Revision Date: September 18, 2014 NAPCO CHEMICAL COMPANY, INC. Water and Wastewater Treatment Chemicals * Feed Systems * Test Kits P.O. Box 1239 Spring, TX * (281) * 1 (800) PRODUCT IDENTIFICATION Material Safety Data Sheet Product Name: NAPCO 50% CITRIC ACID Synonyms: Distributed By: Telephone: Fax: NAPCO Chemical Company, Inc. P.O. Box 1239 Spring, TX (281) (281) Emergency Contact: CHEMTREC (24 Hrs) at 1 (800) United States, Canada, Puerto Rico, and Virgin Islands Physical Description: 2. PRODUCT INGREDIENTS Exposure Limit Components Percent (%) OSHA PEL: ACGIH TLV: Citric Acid Anhydrous No Data Available No Data Available CAS ( ) Water No Data Available No Data Available CAS ( ) 3. HAZARD IDENTIFICATION Emergency Overview: Warning. Irritating to eyes. Corrosive to metals. May cause irritation to respiratory tract.

2 4. FIRST AID MEASURES Eye Contact: Skin Contact: Inhalation: Ingestion: Other Instructions: Immediately flush eyes with water for at least 15 minutes. Hold eyelids open to ensure adequate flushing. Get immediate medical attention. Remove contaminated clothing and shoes. Wash affected skin area with soap and water. Delayed skin damage is possible if product is not completely washed off. Get immediate medical attention. Remove to fresh air. Get immediate medical attention. If ingested, dilute swallowed material by drinking water. DO NOT INDUCE VOMITING. Never give anything by mouth to an unconscious person. Get immediate medical attention. Rescue personnel must wear appropriate protective equipment during removal of victim from contaminated area. 5. FIRE-FIGHTING MEASURES Flash Point: Auto ignition Temperature: Flammable Limits, in Air: LEL (%) UEL (%) Extinguishing Media: Special Fire Fighting Procedure: Unusual Fire and Explosion Hazards: Hazardous Combustion Products: NFPA Class B extinguishers: Dry chemical, foam, water, or carbon dioxide In the event of a fire, wear NIOSH approved, positive pressure, self-contained breathing apparatus (SCBA) and full protective clothing. Evacuate all non-essential personnel from the danger area. Keep container tightly closed. Isolate from oxidizers, heat, & open flame. Closed containers may explode if exposed to extreme heat. 6. ACCIDENTAL RELEASE MEASURES Containment Techniques: Stop spill at source. Dike area and contain.

3 Methods for clean-up: All cleanup personnel must be properly trained. Confine the spill and remove incompatible materials and ignition sources. Ensure adequate ventilation. Secure the source of the leak if conditions are safe. Neutralize spill and collect using an appropriate absorbent material such as clay or vermiculite. Place waste in an appropriate container for disposal. Use care during cleanup to avoid exposure to the material and injury from broken containers. 7. HANDLING AND STORAGE Handling: Use with adequate ventilation. Wear proper PPE. Use only with adequate ventilation. Storage: Do not store above 49 C/ 120 F. Store large amounts in structures made for OSHA Class IIIB liquids. Keep container tightly closed & upright when not in use to prevent leakage. 8. EXPOSURE CONTROLS & PERSONAL PROTECTION Eye Protection: Skin Protection: Wear chemical splash goggles or face shield. Minimize contact with product. Wear chemical resistant coveralls, boots, gloves, apron and/or suitable long sleeve clothing. Consult PPE manufacturer for chemical resistance information. Respiratory Protection: Ensure adequate ventilation. Engineering Controls: Ensure adequate ventilation. Emergency eyewash and safety shower facilities should be available in the immediate work area. Required Work/ Hygiene Procedure: Wash hands thoroughly after handling. Do not eat, drink or smoke in work area. If unusual exposures are expected, an industrial hygiene review of work practices, engineering controls and PPE is recommended.

4 9. PHYSICAL PROPERTIES Physical Form: Color: Odor: Molecular Weight: Boiling Point: Freezing Point: Solubility in Water: Liquid White-yellow None Not available >100 C C Complete Specific Gravity: Vapor Density:.6 (air= 1) Evaporation Rate: Vapor Pressure: <1 (butyl acetate=1) 17.5 (mm of 20C % Volatile: Not available ph: <1.25 The physical data included above are typical values and should not be construed as a specification. 10. STABILITY AND REACTIVITY Stability: Conditions to Avoid: Hazardous Decomposition: Hazardous Polymerization: Stable under recommended storage conditions. Isolate from oxidizers, heat, and open flame. Not expected to occur. 11. TOXICOLOGY INFORMATION Primary Exposure: Potential Health Effects: Eye Contact: Skin Contact: Inhalation: Ingestion: Carcinogenicity: Medical Concerns: Eye, skin contact, inhalation May cause redness, tearing, and blurred vision. May cause burns with prolonged contact. May cause irritation to respiratory tract. May be Harmful if swallowed. Ingestion may cause chemical burns, pain, vomiting, difficulty breathing and other gastrointestinal effects. This product has no carcinogens listed by IARC, NTP, NIOSH, OSHA, or ACGIH, as of this date, greater or equal to 0.1%. Asthma, other respiratory conditions and skin disorders may be aggravated by overexposure.

5 Toxicological Data: Citric Acid: CAS # Water CAS # This product contains no EPA Hazardous Air Pollutants (HAP) in amounts >.1%. 12. ECOLOGICAL INFORMATION Ecotoxicity: Biodegradability: 13. DISPOSAL CONSIDERATIONS Disposal Method: This product must be disposed of in accordance with Federal, state and local environmental regulations. If questions exist contact appropriate agencies. 14. TRANSPORTATION INFORMATION NOT DOT RUGULATED UNDER 49CFR REGULATORY INFORMATION U.N. GHS Classification & Labeling Information Classification: Signal Word H Statements: P Statements:

6 NFPA 704 Information: Health Rating: 2 (NFPA) 2 (HMIS) Flammability Rating: 0 (NFPA) 0 (HMIS) Reactivity Rating: 0 (NFPA) 0 (HMIS) Other Hazards: U.S. Federal Regulatory Information: EPA Clean Air Act: Not Listed EPA Clean Water Act: EPA FIFRA: TSCA: RCRA: CERCLA RQ: SARA Title III 302: SARA Title III 311/312: All components if this product are on the TSCA list. Acute Health SARA Title III 313: 16. OTHER INFORMATION This material contains no known produts restricted in amounts greater or equal to 1%. All information appearing herein is based up data obtained from the manufacturer and/or recognized technical sources. This information is furnished without warranty, expressed or implied, except that it is accurate to the best knowledge of NAPCO Chemical Company, Inc. at the time it was prepared. NAPCO Chemical Company, Inc. assumes no liability whatsoever for the accuracy of completeness of the information contained herein. Final determination of suitability of any material is the sole responsibility of the user. All materials may present unknown hazards and should be used with caution. Although certain hazards are described herein, NAPCO Chemical Company, Inc. cannot guarantee that these are the only hazards that exist. NAPCO Chemical Company, Inc. assumes no legal responsibility for loss, damage or expense arising out of, or in any way connected with the handling, storage, use or disposal of this product.