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SAFETY DATA SHEET Potassium Hydroxide, Liquid 45-50% Revision Date: 2020-06-15 Version: 1.0

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SAFETY DATA SHEET Potassium Hydroxide, Liquid 45-50% Revision Date: 2020-06-15 Version: 1.0 SAFETY DATA SHEET Potassium Hydroxide, Liquid 45-50% Revision date: 2020-06-15 Version: 1.0 1. PRODUCT AND COMPANY IDENTIFICATION Product Identifier Product Name: Potassium Hydroxide, Liquid 45-50% Synonyms: Chemical manufacturing, fertilizer, batteries, soaps Product Form: Liquid Recommended use of the chemical and restrictions on use Recommended Use: Professional use, Industrial use. Chemical manufacturing, fertilizer, batteries, soaps Restrictions on Use: Use as recommended by the label Details of the supplier and of the safety data sheet Supplier Tersus Environmental, LLC 1116 Colonial Club Rd Wake Forest, NC 27587 Phone: +1-919-453-5577 Email: [email protected] Contact Person David F. Alden Phone: +1-919-453-5577 x2002 Email: [email protected] Emergency telephone number For leak, fire, spill or accident emergencies, call: +1-919-453-5577 (Tersus Office Hours, 8:00 AM to 5:00 PM Eastern) +1-800-424-9300 (Chemtrec 24 Hour Service – Emergency Only) +1-703-527-3887 (Chemtrec Outside United States 24 Hour Service – Emergency Only) +1-919-638-7892 Gary M. Birk (Outside office hours) 2. HAZARD IDENTIFICATION Relevant identified uses of the substance or mixture GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) GHS label elements, including precautionary statements: Signal Word: Danger Pictogram(s): GHS05 GHS07 Page 1 of 10 Potassium Hydroxide, Liquid 45-50% Revision date: 2020-06-15 Version: 1.0 Hazard statement H290 May be corrosive to metals. H302 Harmful if swallowed. H314 Causes severe skin burns and eye damage H318 Causes serious eye damage. H402 Harmful to aquatic life. Precautionary statement P234 Keep only in original container. P264 Wash skin thoroughly after handling. P270 Do not eat, drink, or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/eye protection/face protection. P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER or doctor/ physician if you feel unwell. Rinse mouth P301 + P330 + P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303 + P361 + P353 IF ON SKIN (or hair): Remove/ Take off immediately all contaminated clothing. Rinse SKIN with water/ shower. P305 + P361+ P338 +P310 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. P304 + P340 + P310 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/ physician. P363 Wash contaminated clothing before reuse. P390 Absorb spillage to prevent material damage. P405 Store locked up. P406 Store in corrosive resistant stainless-steel container with a resistant inner liner. P501 Dispose of contents/container in accordance with local/state/national regulations. 3. COMPOSITION/INFORMATION ON INGREDIENTS Pure substance; solution Chemical Formula: KOH CAS No: 1309-42-8 Mixture Chemical Name CAS Number Concentration (wt. %) GHS-US classification Potassium hydroxide 1310-58-3 45 to 50 Acute Tox. 4 (Oral), H302 Skin Corr. 1A, H314 Aquatic Acute 3, H402 Water 7732-18-5 Balance Not classified Synonyms are provided in Section 1. Occupational exposure limits, if available, are listed in Section 8. Page 2 of 10 Potassium Hydroxide, Liquid 45-50% Revision date: 2020-06-15 Version: 1.0 4. FIRST AID MEASURES General Information Move out of dangerous area. Consult a physician. Show this safety data sheet to the doctor in attendance. Eye Contact Immediately flush eyes with plenty of water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a physician or poison control center immediately. Skin Contact Immediately take off all contaminated clothing. Wash off IMMEDIATELY with plenty of water for at least 15-20 minutes. Get medical attention. Wash clothing separately before reuse. Destroy or thoroughly clean contaminated shoes. Inhalation If breathed in, move person into fresh air. If breathing is difficult, give humidified air. Give oxygen but only by a certified physician. If breathing stops, provide artificial respiration. Get medical attention immediately. Ingestion Never give anything by mouth to an unconscious person. Rinse mouth with water. Give plenty of water to drink. Consult a physician. Most important Toxic if swallowed. Harmful in contact with skin. Causes severe skin symptoms and effects, irritation. Symptoms may include redness, blistering, pain and swelling. both acute and delayed Causes serious eye damage. Symptoms may include severe pain, blurred vision, redness, and corrosive damage. May cause respiratory irritation. Symptoms may include coughing, choking, and wheezing. Could result in pulmonary edema (fluid accumulation). Symptoms of pulmonary edema (chest pain, shortness of breath) may be delayed. Ingestion may cause severe burns to the mucous membranes of the digestive tract. Symptoms may include abdominal pain, vomiting, burns, perforations and bleeding. Indication of any Immediate medical attention is required. Causes chemical burns. Treat immediate medical symptomatically. attention and special treatment needed 5. FIRE-FIGHTING MEASURES Flash Point None Suitable Extinguishing Use water spray, alcohol-resistant foam, dry chemical or Media carbon dioxide. Auto Ignition Temp Non-combustible Special Fire Fighting Wear self-contained breathing apparatus and full protective Procedures clothing. In case of fire and/or explosion do not breathe fumes. Move containers from fire area if you can do so without risk. Use water spray to cool unopened containers. Unusual Fire/Explosion Not combustible, however the product can react with metals Hazards such as aluminum, tin, zinc to form flammable and explosive hydrogen gas. Fire-Fighting Measures Potassium hydroxide does not burn or support combustion. Use extinguishing agents compatible with potassium hydroxide and appropriate for the surrounding fire. If water is used, care should be taken, since it can generate heat and cause spattering if applied directly to potassium hydroxide. Page 3 of 10 Potassium Hydroxide, Liquid 45-50% Revision date: 2020-06-15 Version: 1.0 6. ACCIDENTAL RELEASE MEASURES For emergency responders Wear protective clothing as described in Section 8 of this safety data sheet. Contact with walking surface may result in formation of slippery film/falling hazard. Environmental Precautions Do not discharge into drains, water courses or onto the ground. Methods for Containment Cleanup personnel must wear proper protective equipment. and Clean Up Completely contain spilled material with dikes, sandbags, etc., and prevent run-off into ground or surface waters or sewers. Recover as much material as possible into containers for disposal. Remaining material may be neutralized with dilute hydrochloric or acetic acid. Neutralization products, both liquid and solid, must be recovered for disposal. Special spill response If a spill/release more than the EPA reportable quantity is made into procedures the environment, immediately notify the national response center in the United States (phone: 1-800-424-8802). US CERCLA Reportable quantity (RQ): Potassium hydroxide (1,000 lbs. / 454 kg) Waste Control Procedures All disposals of this material must be done in accordance with federal, state, and local regulations. Waste characterization and compliance with disposal regulations are the responsibilities of the waste generator. Reference to other sections See Section 1 for emergency contact information. See Section 8 for information on appropriate personal protective equipment. See Section 13 for additional waste treatment information. 7. HANDLING AND STORAGE Precautions for safe Storage tanks should be contained in a diked area that has sufficient handling capacity to hold the contents of the tank. This area should be free of potential contact with acids, organics, and reactive metals. Keep container tightly closed. Store in a cool, dry, well-ventilated place. Store in corrosive resistant container with a resistant inner liner. Store away from incompatible materials. Store at temperatures not exceeding 40°C/104°F. Compatible storage materials may include, but not be limited to, the following: nickel and nickel alloys, steel, plastics, plastic or rubber-lined steel, FRP, or Derakane vinyl ester resin. Do not allow material to freeze. Conditions for safe storage Store in a well-ventilated place. Keep container tightly closed. Store locked up. Keep away from incompatibles. Storage area should be clearly identified, clear of obstruction and accessible only to trained and authorized personnel. Inspect periodically for damage or leaks. Do not freeze. Store in corrosion-resistant containers. Avoid contact with aluminum. Incompatible materials Acids; Water; Metals (e.g. tin, aluminum, zinc and alloys containing these metals) Page 4 of 10 Potassium Hydroxide, Liquid 45-50% Revision date: 2020-06-15 Version: 1.0 8. EXPOSRE CONTROL / PERSONAL PROTECTION Principal Component: Potassium hydroxide, water Occupational Exposure Limits: Regulatory Limits: Component ACGIH TLV OSHA PEL 15 Minute STEL NIOSH IDLH Inhalable 2 mg/m3 (ceiling --- --- --- Particulat e Control parameters Exposure Control Protective equipment Appropriate engineering Good general ventilation should be used. Ventilation rates should be controls matched to conditions. If applicable, use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure limits. If
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