Hydrochloric Acid (HCl)
CAS number 7647-01-0
MDL number MFCD00003548
EC number 231-595-7
PubChem Substance ID 329753973
Hydrochloric acid is a corrosive, strong mineral acid with many industrial uses. A colorless, highly pungent solution of hydrogen chloride (HCl) in water, when it reacts with an organic base it forms a hydrochloride salt.
Description
| Physicochemical Information | |
|---|---|
| Density | 1.09 g/cm3 (20 °C) |
| pH Value | <1 (H₂O, 20 °C) |
| Molecular Weight | 36.46 |
| Hill formula | HCl |
| Safety Information | |
|---|---|
| Hazard symbol | GHS05: Corrosive GHS07: Harmful (Irritant) |
| Signal Word | Warning |
| Hazard Element | H290: May be corrosive to metals. H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation. |
| Precautionary Statements | P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| WGK Germany | WGK 1 slightly hazardous to water |
| Storage class | 8B Non-combustible, corrosive hazardous materials |
| R Phrase | R 36/37/38: Irritating to eyes, respiratory system and skin. |
| Disposal | 28 Aqueous solutions: Container D. |
| Storage & Transport Information | |
|---|---|
| Storage | Storage temperature: no restrictions. |
| Declaration (railroad and road) ADR, RID | UN 1789 , 8, II |
| Declaration (transport by air) IATA-DGR | UN 1789 , 8, II |
| Declaration (transport by sea) IMDG-Code | UN 1789 , 8, II, Segregation Group: 1 (Acids) |
