NITRICLEAN ACID NO. 161

SECTION 2: Hazards identification

Signal word

Danger GHS Classification Substance or mixture corrosive to metals Category Skin Corrosion/Irritation Category 1B serious Eye Damage/Eye Irritation Category Specific Target Organ Systemic Toxicity (STOT) - Repeated Exposure Category 2 Hazard Statements May be corrosive to metals Causes severe skin burns and eye damage May cause damage to organs (teeth, respiratory system) through prolonged or repeated exposure (by inhalation)

Prevention

Keep only in original container. Do not breathe dust, fume, gas, mist, vapors or spray. Wash thoroughly after handling. Wear gloves, eye and face protection and protective clothing.

Response

IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. iF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Specific treatment (see on this label). Wash contaminated clothing before reuse. Absorb spillage to prevent material damage. Hazardous Combustion Products: Nitrogen oxides. | 6. ACCIDENTAL RELEASE MEASURES Spill Clean-Up Procedures: CORROSIVE MATERIAL. STRONG OXIDIZER. Eliminate all sources of ignition. Evacuate unprotected personnel from area. Maintain adequate ventilation. Follow personal protective equipment recommendations found in Section 8. Never exceed any occupational exposure limit. Contain spill, place into drums for proper disposal. Flush remaining area with water and neutralize with Soda Ash, Lime or Limestone and dispose of properly. (Adequate ventilation required to eliminate any nitrogen oxides emitted.) If soda ash or limestone is used, carbon dioxide will be emitted. Avoid direct discharge to sewers and surface waiters. Notify authorities if entry occurs. | 7. HANDLING AND STORAGE Handling: Avoid contact with eyes, skin, and clothing. Use with adequate ventilation. Do not swallow. Avoid breathing vapors, mists, or dust. Do not eat, drink, or smoke in work area. Wash thoroughly after handling. Empty containers retain product residue (vapor, dust, or liquid) and can be dangerous. DO NOT pressurize, cut, weld, braze, solder, drill, grind, or expose such containers to heat, flame, sparks, static electricity, or other source of ignition. They may explode and cause injury or death.

Storage

CORROSIVE MATERIAL. STRONG OXIDIZER. Store in a cool, well ventilated area away from all sources of ignition and out of direct sunlight. Store in a dry location away from heat. Keep away from incompatible materials. Keep containers tightly closed. Do not store in unlabeled or mislabeled containers. Diking of storage tanks is recommended. Avoid storage on wood floors or near wooden walls, etc.. Do not freeze. See Section 10 for incompatible materials. | 8. EXPOSURE CONTROLS/PERSONAL PROTECTION oY

Medical Conditions Generally Aggravated by Exposure

Product Lung disorders. Skin disorders Other: Chronic exposure to nitric acid can produce changes in pulmonary function and/or. chronic bronchitis. Eye irritation and respiratory symptoms resembling frequent upper respiratory viral infections have also been associated with chronic exposure.

Cancer information

This product does not contain 0.1% or more of the known or potential carcinogens listed in NTP, IARC, or

2.1 Classification of the substance or mixture

1 Skin Corrosion/Irritation Category 1B serious Eye Damage/Eye Irritation Category 1 Specific Target Organ Systemic Toxicity (STOT) - Repeated Exposure Category 2 Hazard Statements: May be corrosive to metals. Causes severe skin burns and eye damage. May cause damage to organs (teeth, respiratory system) through prolonged or repeated exposure (by inhalation). Precautionary Statements: Prevention: Keep only in original container. Do not breathe dust, fume, gas, mist, vapors or spray. Wash thoroughly after handling. Wear gloves, eye and face protection and protective clothing. Response: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. iF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Specific treatment (see on this label). Wash contaminated clothing before reuse. Absorb spillage to prevent material damage. Hazardous Combustion Products: Nitrogen oxides. | 6. ACCIDENTAL RELEASE MEASURES Spill Clean-Up Procedures: CORROSIVE MATERIAL. STRONG OXIDIZER. Eliminate all sources of ignition. Evacuate unprotected personnel from area. Maintain adequate ventilation. Follow personal protective equipment recommendations found in Section 8. Never exceed any occupational exposure limit. Contain spill, place into drums for proper disposal. Flush remaining area with water and neutralize with Soda Ash, Lime or Limestone and dispose of properly. (Adequate ventilation required to eliminate any nitrogen oxides emitted.) If soda ash or limestone is used, carbon dioxide will be emitted. Avoid direct discharge to sewers and surface waiters. Notify authorities if entry occurs. | 7. HANDLING AND STORAGE Handling: Avoid contact with eyes, skin, and clothing. Use with adequate ventilation. Do not swallow. Avoid breathing vapors, mists, or dust. Do not eat, drink, or smoke in work area. Wash thoroughly after handling. Empty containers retain product residue (vapor, dust, or liquid) and can be dangerous. DO NOT pressurize, cut, weld, braze, solder, drill, grind, or expose such containers to heat, flame, sparks, static electricity, or other source of ignition. They may explode and cause injury or death. Storage: CORROSIVE MATERIAL. STRONG OXIDIZER. Store in a cool, well ventilated area away from all sources of ignition and out of direct sunlight. Store in a dry location away from heat. Keep away from incompatible materials. Keep containers tightly closed. Do not store in unlabeled or mislabeled containers. Diking of storage tanks is recommended. Avoid storage on wood floors or near wooden walls, etc.. Do not freeze. See Section 10 for incompatible materials. | 8. EXPOSURE CONTROLS/PERSONAL PROTECTION oY OSHA Exposure Guidelines: | Component Limits Nitric Acid 2 ppm ppm TWA; 5 mg/m3 TWA ACGIH Exposure Guidelines: Component Limits Nitric Acid 4 ppm STEL; 2 ppm TWA Engineering Controls: Local exhaust ventilation, process enclosures, or other engineering controls are imperative when handling or using this product to avoid overexposure. Avoid creating dust or mist. Do not use in closed or confined spaces. Keep levels below exposure limits. To determine exposure levels, monitoring should be performed regularly. Eye/Face Protection: Wear chemical safety goggles and a full face shield while handling this product Do not wear contact lenses. Skin Protection: Prevent contact with this product. Wear gloves and protective clothing depending on condition of use. Protective gloves: Acid-proof. Neoprene. Gauntlet-type. Polyviny! chloride. Respiratory Protection: Respiratory protection must be worn if ventilation does not eliminate symptoms or keep levels below recommended exposure limits. If exposure limits are exceeded, wear: NIOSH-Approved full face supplied air respirator for Nitric Acid or Nitrogen Oxide gases or mists. Note: Cartridge or cannister respirators are not suitable for Nitrogen Oxide use. DO NOT USE chemical cartridge respirators with oxidizable sorbants. NIOSH-Approved self-contained breathing apparatus. DO NOT exceed limits established by the respirator manufacturer. All respiratory protection programs must comply with OSHA 29 CFR 1910.134 and ANSI Z88.2 requirements and must be followed whenever workplace conditions require a respirator's use. Other Protective Equipment: Eye-wash station. Safety shower. Rubber apron. Chemical safety shoes. Rubber boots. Protective clothing. Full-rubber acid suit. NOTE: The above protective equipment is listed for exposure to this product at full strength. When using this product at the recommended use dilution of up to 4 oz/gal, wearing rubber gloves and safety glasses are acceptable precautionary measures. Eye Contact: CORROSIVE-Causes severe irritation and burns. Low concentrations of vapor or mist may cause: irritation. conjunctivitis. May cause: pain. corneal opacity. corneal ulceration. permanent eye damage. blindness. Skin Contact: CORROSIVE-Causes severe irritation and bums. Contact causes yellowish skin discoloration. Corrosive action causes burns and frequently deep ulceration with ultimate scarring. Prolonged and repeated exposure to dilute solutions may cause irritation, redness, pain and drying and cracking of the skin. Skin Absorption: No absorption hazard expected under normal use. inhalation: CORROSIVE-Causes severe irritation and burns. May irritate: nose. throat. mucous membranes. Inhalation of dust or mists can cause damage to the upper respiratory tract and lung tissue depending upon the extent of exposure. Nitric acid mists of 2 to 5 ppm in 8 hours may cause symptoms of lung damage. Symptoms from inhalation of Nitric Acid vapor and Nitrogen Oxides may be delayed; vapor concentrations may cause severe breathing difficulties for up to 30 hours. Nitrogen Oxide poisoning, pulmonary edema and bronchopneumonia may also occur at elevated concentrations. Chronic exposure may cause: dental erosions. Ingestion: CORROSIVE-Causes severe irritation and burns. May cause damage to the: mouth. throat. esophagus. stomach. digestive tract. May cause: pain. nausea. vomiting. hemorrhaging. perforation of the digestive tract. death. Erosion of teeth is possible. Medical Conditions Aggravated by Exposure to Product: Lung disorders. Skin disorders. Other: Chronic exposure to nitric acid can produce changes in pulmonary function and/or. chronic bronchitis. Eye irritation and respiratory symptoms resembling frequent upper respiratory viral infections have also been associated with chronic exposure. Cancer Information: This product does not contain 0.1% or more of the known or potential carcinogens listed in NTP, IARC, or OSHA. 12. ECOLOGICAL INFORMATION ] Ecotoxicological Information: NITRIC ACID: Acute Toxicity to Fish: (A. dispar (freshwater fish)) 96-hr. semistatic - LC50=pH 3.71, (S. gairdneri (rainbow trout) 7-day semistatic LC50=pH - 4.0