What is the PEL for sodium hydroxide
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Published by SALUSThe Permissible Exposure Limit (PEL) for sodium hydroxide is 2 mg/m3\. This is based on OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910\.1000\). [1]
When handling sodium hydroxide, it is crucial to use appropriate engineering controls such as local exhaust ventilation to maintain airborne levels within acceptable limits. Eye wash facilities and emergency showers should be available. [1]
Personal Protective Equipment (PPE) is essential. This includes:
- Eye protection: Wear safety glasses with side shields (or goggles) and a face shield.
- Hand protection: Wear appropriate chemical resistant gloves.
- Skin protection: Wear appropriate chemical resistant clothing.
[1] Sodium hydroxide can cause severe skin burns and eye damage. It is also harmful to aquatic life. Ensure you follow all safety precautions outlined in the Safety Data Sheet (SDS). [3]
Always add corrosives slowly to COLD water and use corrosion-resistant tools and equipment. Avoid generating vapors or mists and dusts. [2]
Sources used for this answer
[1] Sodium Hydroxide
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Open source documentSource excerpt
# Sodium Hydroxide (cont.) ## What are unintentional release measures for sodium hydroxide? (cont.) Methods for Containment and Clean-up: Contain and soak up spill with absorbent that does not react with spilled product. Shovel or sweep dry sodium hydroxide for recycling or disposal. Flush spill area. Dike spilled product to prevent runoff. ## What handling and storage practices should be used when working with sodium hydroxide? Handling: Before handling, it is important that all engineering controls are operating and that protective equipment requirements and personal hygiene measures are being followed. Only trained personnel should work with this product. Immediately report leaks, spills or failures of the safety equipment (e.g., ventilation system). Avoid generating vapours or mists. Avoid generating dusts. Use corrosion-resistant tools and equipment. Never add water to a corrosive. Always add corrosives slowly to COLD water. Never reuse empty containers, even if they appear to be clean. Keep containers tightly closed when not in use or empty. Storage: Store in an area that is: cool, dry, well-ventilated, separate from incompatible materials. Keep amount in storage to a minimum. Store in the original, labelled, shipping container. Vent drums to prevent pressure buildup. Do not handle swollen drums. Get expert advice. Empty containers may contain hazardous residue. Store separately. Keep closed. Contain spills or leaks by storing containers in trays made from compatible materials. ## What is the American Conference of Governmental Industrial Hygienists (ACGIH®) recommended exposure limit for sodium hydroxide? ACGIH® TLV® - STEL [C]: 2 mg/m³ C Exposure Guideline Comments: TLV® = Threshold Limit Value. STEL = Short-term Exposure Limit. C = Ceiling limit. Adapted from: 2022 TLVs® and BEls® - Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices. Cincinnati: American Conference of Governmental Industrial NOTE: In…
[2] BEHR Wood Stain & Finish Stripper
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Open source documentSource excerpt
# SAFETY DATA SHEET (cont.) ## 8. Exposure controls/personal protection ## Occupational exposure limits US. OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910.1000) <table><tr><th>Components</th><th>Type</th><th>Value</th></tr><tr><td>2-Butoxyethanol (CAS 111-76-2)</td><td>PEL</td><td>240 mg/m3</td></tr><tr><td></td><td></td><td>50 ppm</td></tr><tr><td>Sodium hydroxide (CAS 1310-73-2)</td><td>PEL</td><td>2 mg/m3</td></tr><tr><td>US. ACGIH Threshold Limit Values Components</td><td>Type</td><td>Value</td></tr><tr><td>2-Butoxyethanol (CAS 111-76-2)</td><td>TWA</td><td>20 ppm</td></tr><tr><td>Sodium hydroxide (CAS 1310-73-2)</td><td>Ceiling</td><td>2 mg/m3</td></tr><tr><td colspan="3">US. NIOSH: Pocket Guide to Chemical Hazards</td></tr><tr><td>Components</td><td>Type</td><td>Value</td></tr><tr><td>2-Butoxyethanol (CAS 111-76-2)</td><td>TWA</td><td>24 mg/m3</td></tr><tr><td></td><td></td><td>5 ppm</td></tr><tr><td>Sodium hydroxide (CAS 1310-73-2)</td><td>Ceiling</td><td>2 mg/m3</td></tr></table> ## Biological limit values <table><tr><th colspan="2">ACGIH Biological Exposure Indices Components Value</th><th>Determinant</th><th>Specimen</th><th>Sampling Time</th></tr><tr><td>2-Butoxyethanol (CAS 111-76-2)</td><td>200 mg/g</td><td>Butoxyacetic acid (BAA), with hydrolysis</td><td>Creatinine in urine</td><td>*</td></tr></table> * For sampling details, please see the source document. ## Exposure guidelines US California OELs: Skin designation 2-Butoxyethanol (CAS 111-76-2) US Minnesota Haz Subs: Skin designation applies 2-Butoxyethanol (CAS 111-76-2) US Tennessee OELs: Skin designation 2-Butoxyethanol (CAS 111-76-2) US. NIOSH: Pocket Guide to Chemical Hazards Can be absorbed through the skin. 2-Butoxyethanol (CAS 111-76-2) Skin designation applies. Can be absorbed through the skin. - US. OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910.1000) 2-Butoxyethanol (CAS 111-76-2) Can be absorbed through the skin. Can be absorbed through the skin. A…
[3] Safety Data Sheet - Sodium Hydroxide
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Open source documentSource excerpt
# SAFETY DATA SHEET (cont.) ## SECTION 2: Hazards identification (cont.) Pictogram Signal Word Danger <table><tr><th>Hazard Statements</th><th></th></tr><tr><td>H290</td><td>May be corrosive to metals.</td></tr><tr><td>H314</td><td>Causes severe skin burns and eye damage.</td></tr><tr><td>H402</td><td>Harmful to aquatic life.</td></tr><tr><td colspan="2">Precautionary Statements</td></tr><tr><td>P234</td><td>Keep only in original container.</td></tr><tr><td>P260</td><td>Do not breathe dust.</td></tr><tr><td>P264</td><td>Wash skin thoroughly after handling.</td></tr><tr><td>P273</td><td>Avoid release to the environment.</td></tr><tr><td>P280</td><td>Wear protective gloves/ protective clothing/ eye protection/ face protection.</td></tr><tr><td>P301 + P330 + P331</td><td>IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.</td></tr><tr><td>P303 + P361 + P353</td><td>IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.</td></tr><tr><td>P304 + P340 + P310</td><td>IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor.</td></tr><tr><td>P305 + P351 + P338 +</td><td>IF IN EYES: Rinse cautiously with water for several minutes.</td></tr><tr><td>P310</td><td>Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/ doctor.</td></tr><tr><td>P363</td><td>Wash contaminated clothing before reuse.</td></tr><tr><td>P390</td><td>Absorb spillage to prevent material damage.</td></tr><tr><td>P405</td><td>Store locked up.</td></tr><tr><td>P406</td><td>Store in corrosive resistant container with a resistant inner liner.</td></tr><tr><td>P501</td><td>Dispose of contents/ container to an approved waste disposal plant.</td></tr></table> ## 2.3 Hazards not otherwise classified (HNOC) or not covered by GHS - none ## SECTION 3: Composition/information on ingredients ## 3.1 Substances Synonyms : 'Caustic soda' Formula : NaOH Molecular …
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