⚠ DANGER: Same chemical as hydrochloric acid — see HCl page. Common in masonry/pool trades at 20–31% concentration. NEVER mix with bleach. Dense HCl vapours settle at floor level in enclosed spaces.
GHS Hazard Pictograms
⚗ Corrosive☠ Acutely Toxic
Hazard Statements (H-codes)
H290 – May be corrosive to metals
H314 – Causes severe skin burns and eye damage
H335 – May cause respiratory irritation
Precautionary Statements (P-codes)
P260 – Do not breathe vapours
P303+P361+P353 – IF ON SKIN: Remove clothing, rinse with water
P305+P351+P338 – IF IN EYES: Rinse continuously for 15 min; seek immediate emergency care
First Aid Measures (Section 4)
👁Eye Contact▼
Flush immediately with water for at least 15 minutes. Seek emergency care.
🖐Skin Contact▼
Remove contaminated clothing. Flush with large amounts of water. Seek medical attention.
🫁Inhalation▼
Move to fresh air. HCl vapour is severely irritating to airways — seek emergency care for significant exposure.
🫦Ingestion▼
Do NOT induce vomiting. Rinse mouth. Give water. Call 911 and Poison Control (1-800-222-1222).
Storage & Handling
🔒 Storage & Handling: Acid-resistant containers. Away from bleach, metals, and organic materials. Secondary containment.