SDS Vault Safety Data Sheet Reference

Hydrochloric Acid (Muriatic Acid)

CAS: 7647-01-0 Category: Cleaners ⚠ DANGER
Also known as: Muriatic acid, HCl, Hydrogen chloride solution, Pool acid

Quick Facts

CAS Number7647-01-0
Signal WordDANGER
GHS Hazard Classescorrosive, toxic
NFPA RatingHealth: 3 / Flammability: 0 / Reactivity: 1
Common NamesMuriatic acid, HCl, Hydrogen chloride solution, Pool acid
PubChem CID313

Hazard Summary

⚠ DANGER: Strong mineral acid producing HCl vapours. Immediately corrosive to eyes, skin, and respiratory tract. NEVER mix with bleach — produces toxic chlorine gas. Corrodes metals.

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
P310 – Immediately call Poison Control

First Aid Measures (Section 4)

👁 Eye Contact
Flush immediately with water for at least 15 minutes. Seek immediate emergency care — acid causes irreversible eye damage.
🖐 Skin Contact
Remove contaminated clothing immediately. Flush with large amounts of water for 15+ minutes. Seek medical attention.
🫁 Inhalation
Remove to fresh air immediately. HCl vapour causes pulmonary edema at high concentrations — seek emergency care. Do not re-enter without SCBA.
🫦 Ingestion
Rinse mouth. Do NOT induce vomiting. Give water if conscious. Call Poison Control (1-800-222-1222) and seek emergency care.

Storage & Handling

🔒 Storage & Handling: Store in acid-resistant containers in well-ventilated area. Keep away from bleach, oxidizers, and metals. Secondary containment required.

PPE Requirements

Chemical splash goggles
Face shield
Acid-resistant gloves (butyl or neoprene)
Acid-resistant apron
Acid/gas cartridge respirator
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