safety physical_safety ai_generated true

AI advises using a weak acid (vinegar) to neutralize an alkali chemical burn, or a weak base (baking soda) to neutralize an acid chemical burn on skin

ID: safety/chemical-burn-first-aid-wrong-neutralization

Also available as: JSON · Markdown · 中文
92%Fix Rate
88%Confidence
1Evidence
2024-03-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
OSHA 29 CFR 1910.120 active — — —
NIOSH Emergency Response Guide active — — —

Root Cause

Neutralization reactions generate heat exothermically, which can worsen thermal injury; the correct first aid is immediate, copious irrigation with water for at least 20 minutes.

generic

中文

中和反应会放热，可能加剧热损伤；正确的急救方法是立即用大量清水冲洗至少20分钟。

Official Documentation

https://www.cdc.gov/niosh/docs/2010-115/pdfs/2010-115.pdf

Workarounds

  1. 95% success Immediately flush the affected area with copious amounts of cool running water for at least 20 minutes. Remove contaminated clothing while flushing. Use a safety shower if available. 
    Immediately flush the affected area with copious amounts of cool running water for at least 20 minutes. Remove contaminated clothing while flushing. Use a safety shower if available.
  2. 85% success For dry chemical (e.g., lime, sodium metal), brush off the chemical with a dry, non-abrasive tool before flushing, then irrigate with water for 20 minutes. 
    For dry chemical (e.g., lime, sodium metal), brush off the chemical with a dry, non-abrasive tool before flushing, then irrigate with water for 20 minutes.
  3. 90% success After irrigation, cover the burn loosely with a sterile non-stick dressing or clean cloth. Seek emergency medical evaluation for all chemical burns larger than 3 inches or on face, hands, feet, or genitals. 
    After irrigation, cover the burn loosely with a sterile non-stick dressing or clean cloth. Seek emergency medical evaluation for all chemical burns larger than 3 inches or on face, hands, feet, or genitals.

中文步骤

  1. Immediately flush the affected area with copious amounts of cool running water for at least 20 minutes. Remove contaminated clothing while flushing. Use a safety shower if available.
  2. For dry chemical (e.g., lime, sodium metal), brush off the chemical with a dry, non-abrasive tool before flushing, then irrigate with water for 20 minutes.
  3. After irrigation, cover the burn loosely with a sterile non-stick dressing or clean cloth. Seek emergency medical evaluation for all chemical burns larger than 3 inches or on face, hands, feet, or genitals.

Dead Ends

Common approaches that don't work:

  1. 95% fail

    Vinegar (acetic acid) reacts with NaOH to produce sodium acetate, water, and significant heat, causing thermal burns on top of chemical injury.

  2. 90% fail

    Baking soda (sodium bicarbonate) reacts with strong acids to produce CO2 gas and heat; the foaming action can spread the acid and the heat worsens tissue damage.

  3. 85% fail

    Wiping can spread the chemical to unaffected skin and push it deeper into tissues; dry cloth may not remove all chemical and causes friction damage.