# 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

- **ID:** `safety/chemical-burn-acid-base-neutralize`
- **Domain:** safety
- **Category:** physical_safety
- **Error Code:** `WHO-EMC-2023-chem-burn`
- **Verification:** ai_generated
- **Fix Rate:** 85%

## Root Cause

Neutralization reactions can produce additional heat (exothermic) that worsens thermal injury, and may cause gas formation (e.g., CO2 from acid+baking soda) that can force chemicals deeper into tissue; standard first aid for chemical burns is copious water irrigation for 20+ minutes, not chemical neutralization.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| WHO Emergency Triage Assessment and Treatment 2023 | active | — | — |
| American Burn Association Guidelines 2022 | active | — | — |
| MSDS SDS 2024 | active | — | — |

## Workarounds

1. **Immediately flush affected area with copious amounts of cool running water for at least 20 minutes, removing contaminated clothing during flushing; use a shower, hose, or faucet — do not scrub the area** (95% success)
   ```
   Immediately flush affected area with copious amounts of cool running water for at least 20 minutes, removing contaminated clothing during flushing; use a shower, hose, or faucet — do not scrub the area
   ```
2. **For dry powder chemicals (e.g., lime, phosphorus): brush off visible powder before flushing to prevent water from activating the chemical; then flush with water for 20 minutes** (85% success)
   ```
   For dry powder chemicals (e.g., lime, phosphorus): brush off visible powder before flushing to prevent water from activating the chemical; then flush with water for 20 minutes
   ```
3. **After flushing, cover the burn loosely with a clean dry cloth or sterile dressing (not adhesive), and seek immediate medical attention; do not apply ointments, butter, or ice directly** (90% success)
   ```
   After flushing, cover the burn loosely with a clean dry cloth or sterile dressing (not adhesive), and seek immediate medical attention; do not apply ointments, butter, or ice directly
   ```

## Dead Ends

- **** — Assume 'like dissolves like' or 'opposites cancel' applies to chemistry on skin; but living tissue is not a beaker, and exothermic reactions cause additional thermal damage (95% fail)
- **** — Think household products are safe because they are 'mild'; vinegar is 5% acetic acid (pH ~2.4) which can itself cause burns on damaged skin, and baking soda is alkaline (pH ~8.3) (90% fail)
- **** — Believe neutralization is faster than water rinsing so it's better for emergencies; but neutralization takes time to complete while water immediately dilutes and flushes away the chemical (85% fail)