CAUSTIC SODA LIQUID (ALL GRADES)

SECTION 2: Hazards identification

(29 CFR 1910.1200) _________________________________________________________________________________________________

Appearance/Odor

Clear to opaque Odorless

Signal word

DANGER

Health hazards

CAUSES SERIOUS EYE DAMAGE. CAUSES SEVERE SKIN BURNS AND EYE DAMAGE. Toxicity may be delayed and may not be readily visible.

Physical hazards

MAY BE CORROSIVE TO METALS. Mixing with water, acid or incompatible materials may cause splattering and release of heat. Do not store in aluminum container or use aluminum fittings or transfer lines, as flammable hydrogen gas may be generated. ECOLOGICAL HAZARDS: Keep out of water supplies and sewers. This material is alkaline and may raise the pH of surface waters. Category 1 - May be corrosive to metals GHS: CONTACT HAZARD - SKIN Category 1A - Causes severe skin burns and eye damage GHS: CONTACT HAZARD - EYE Category 1 - Causes serious eye damage HAZARDS NOT OTHERWISE CLASSIFIED (HNOC) Aquatic Acute: Category 3 (Harmful to aquatic life) UNKNOWN ACUTE TOXICITY: Not applicable GHS SYMBOL: Corrosive GHS SIGNAL WORD: DANGER GHS HAZARD STATEMENTS GHS - Physical Hazard Statement(s) May be corrosive to metals GHS - Health Hazard Statement(s) Causes severe skin burns and eye damage Additional Hazards - GHS Hazards Not Otherwise Classified (HNOC) ACUTE AQUATIC HAZARD - CATEGORY 3: Harmful to aquatic life GHS - Precautionary Statement(s) - Prevention Keep only in original container or container compatible with product (see Section 7 - Safe Storage Conditions) Do not breathe dust/fume/gas/mist/vapors/spray Wash hands and exposed skin and clothing thoroughly after handling. Do not touch eyes Wear protective gloves, protective clothing, eye, and face protection Avoid release to the environment GHS - Precautionary Statement(s) - Response IF SWALLOWED: Rinse mouth. Do NOT induce vomiting IF INHALED: Remove person to fresh air and keep comfortable for breathing IF ON SKIN: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes Wash contaminated clothing before reuse IF ON SKIN: Get medical help immediately Specific treatment (see "Notes to Physician" in Section 4 of the SDS) IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do Continue rinsing IF IN EYES: Get medical help Absorb spillage to prevent material damage GHS - Precautionary Statement(s) - Storage Store locked up Store in corrosive resistant and NON-ALUMINUM container with a resistant inner liner (NOTE: flammable hydrogen gas may be generated if aluminum container and/or aluminum fittings are used)

Precautionary statements

Do not breathe mist, vapors, or spray. Wash skin and contaminated clothing thoroughly after handling. Wash thoroughly after handling- exposure can cause burns which are not immediately painful or visible. Wear protective gloves, protective clothing, eye, and face protection. Keep only in original container or container compatible with product (see Section 7 - Safe Storage Conditions). Avoid release to the environment. - Disposal • Dispose of contents and container in accordance with applicable local, regional, national, and/or international regulations Physical Hazards of Significance Not Mentioned in GHS Classification • Mixing with water may cause splattering and release of heat • MAY BE CORROSIVE TO METALS Health Hazards of Significance Not Mentioned in GHS Classification • Acute exposure may cause delayed chemical burns

Additional information

This material is corrosive. It may cause severe burns and permanent damage to any tissue with which it comes into contact. Toxicity may be delayed and may not be readily visible. To treat contacted tissue, flush with water to dilute. There is no specific antidote. Significant exposures must be referred for medical attention immediately. HAZARD CLASSIFICATION Contact may cause delayed chemical burns

Results of PBT and vPvB assessment

This product does not fulfill the criteria for persistence, bioaccumulation, and toxicity. Therefore, this substance is not considered a PBT or a vPvB substance Component U.S. - CERCLA/SARA - Section EU - PBT / vPvB Status 313 - PBT Chemical Listing Sodium Hydroxide Not listed PBT/PvBT assessment does not apply Considered NOT to be an EU PBT Sodium Chloride Not listed PBT/PvBT assessment does not apply Considered NOT to be an EU PBT Endocrine Disruptor Assessment: This product nor any of its ingredients which may be present at a concentration equal to or greater than 0.1 wt.% by weight are included in the lists established in accordance with Article 59(1) of Regulation (EU) 2020/878 [as having endocrine disrupting properties]; therefore, this substance shall not be identified as having endocrine disrupting properties. See Section 11: TOXICOLOGICAL INFORMATION _________________________________________________________________________________________________

2.1 Classification of the substance or mixture

GHS: PHYSICAL HAZARDS: Category 1 - May be corrosive to metals GHS: CONTACT HAZARD - SKIN: Category 1A - Causes severe skin burns and eye damage GHS: CONTACT HAZARD - EYE: Category 1 - Causes serious eye damage HAZARDS NOT OTHERWISE CLASSIFIED (HNOC): - Aquatic Acute: Category 3 (Harmful to aquatic life) UNKNOWN ACUTE TOXICITY: Not applicable. GHS SYMBOL: Corrosive GHS SIGNAL WORD: DANGER GHS HAZARD STATEMENTS: GHS - Physical Hazard Statement(s) • May be corrosive to metals GHS - Health Hazard Statement(s) • Causes severe skin burns and eye damage Additional Hazards - GHS Hazards Not Otherwise Classified (HNOC): • ACUTE AQUATIC HAZARD - CATEGORY 3: Harmful to aquatic life