Sodium Hydroxide 30% Solution -2.5Lt

1. Identification

Product Identifier: Sodium Hydroxide 30% Solution
Other Names: Caustic Soda, Lye

2. Hazard Identification

Classification:

• Skin Corrosion/Irritation: Category 1A
• Serious Eye Damage/Irritation: Category 1

Label Elements:

• Signal Word: Danger
• Hazard Statements:
  • H314: Causes severe skin burns and eye damage.
• Precautionary Statements:
  • P280: Wear protective gloves/protective clothing/eye protection/face protection.
  • P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
  • P303+P361+P353: IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse skin with water/shower.
  • P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P310: Immediately call a POISON CENTER or doctor/physician.

3. Composition/Information on Ingredients

Chemical Name: Sodium Hydroxide
Concentration: 30%
CAS Number: 1310-73-2
EC Number: 215-185-5

4. First-Aid Measures

Inhalation: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Seek medical attention if symptoms persist.
Skin Contact: Wash with plenty of water. Remove contaminated clothing and wash before reuse. Seek medical attention if irritation persists.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Seek immediate medical attention.
Ingestion: Rinse mouth. Do NOT induce vomiting. Seek immediate medical attention.

5. Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide.
Special Hazards: Not flammable, but can react with certain metals to produce hydrogen gas, which is flammable.
Protective Equipment: Wear self-contained breathing apparatus and full protective gear.

6. Accidental Release Measures

Personal Precautions: Wear protective equipment. Avoid inhalation and contact with skin and eyes. Ensure adequate ventilation.
Environmental Precautions: Do not let product enter drains.
Methods for Cleaning Up: Neutralize with a dilute acid (e.g., acetic acid), then absorb with inert material and dispose of as hazardous waste.

7. Handling and Storage

Handling: Handle in accordance with good industrial hygiene and safety practices. Avoid contact with skin, eyes, and clothing. Ensure adequate ventilation.
Storage: Store in a cool, dry, well-ventilated area. Keep container tightly closed when not in use.

8. Exposure Controls/Personal Protection

Exposure Limits:

• OSHA PEL: 2 mg/m³
• ACGIH TLV: 2 mg/m³

Personal Protective Equipment:

• Eye Protection: Safety goggles or face shield.
• Skin Protection: Chemical-resistant gloves and protective clothing.
• Respiratory Protection: Use a NIOSH/MSHA-approved respirator if ventilation is inadequate.
• General Hygiene Considerations: Wash hands before breaks and immediately after handling the product.

9. Physical and Chemical Properties

Appearance: Clear, colorless to slightly cloudy liquid
Odor: Odorless
pH: > 13
Melting Point/Freezing Point: –
Boiling Point: Approximately 140°C
Solubility: Completely soluble in water

10. Stability and Reactivity

Reactivity: Reacts with acids, some metals, and organic halogens.
Chemical Stability: Stable under normal conditions.
Hazardous Reactions: Can react with metals to produce hydrogen gas.
Conditions to Avoid: Excessive heat, moisture.
Incompatible Materials: Acids, organic halogens, metals.
Hazardous Decomposition Products: None under normal conditions.

11. Toxicological Information

Routes of Exposure: Inhalation, ingestion, skin and eye contact.
Acute Toxicity:

• Inhalation: Can cause respiratory irritation.
• Skin Contact: Causes severe burns.
• Eye Contact: Causes severe burns and eye damage.
• Ingestion: Can cause severe burns to the digestive tract.

12. Ecological Information

Ecotoxicity: Harmful to aquatic life in high concentrations.
Persistence and Degradability: Not readily biodegradable.
Bioaccumulative Potential: Low potential for bioaccumulation.
Mobility in Soil: Highly mobile in soil.

13. Disposal Considerations

Waste Treatment Methods: Dispose of in accordance with local, regional, national, and international regulations. Neutralize with a dilute acid before disposal.

14. Transport Information

UN Number: UN 1824
Proper Shipping Name: Sodium Hydroxide Solution
Hazard Class: 8 (Corrosive)
Packing Group: II
Environmental Hazards: None

15. Regulatory Information

US Federal Regulations:

• OSHA: Hazardous under 29 CFR 1910.1200.
• TSCA: Listed on the TSCA inventory.