hydrochloric acid
highly corrosive, strong mineral acid in aqueous solution
Press Enter · cited answer in seconds
0 sources
Summary
hydrochloric acid is a type of mixture of chemical entities[1]. It ranks in the top 2% of type of mixture of chemical entities entities by monthly Wikipedia readership (30,548 views/month).[2]
Key Facts
- Discoverer or inventor: Mary the Jewess[3], Basil Valentine[4]
- Chemical formula: HCl(aq)[5]
- Subclass of: hydrohalic acid[6], aqueous solution[7]
- Has use: food additive[8], acidity regulator[9]
- Commons category: Hydrochloric acid[10]
- Has part(s): water[11], hydrogen chloride[12]
- PKa: -6.3[13]
- Described by source: Brockhaus and Efron Encyclopedic Dictionary[14], Granat Encyclopedic Dictionary[15], Encyclopædia Britannica 11th edition[16], The Domestic Encyclopædia; Or, A Dictionary Of Facts, And Useful Knowledge[17], Armenian Soviet Encyclopedia, vol. 1[18]
- Different from: hydrogen chloride[19]
- Mass: 54.47 dalton[20]
- Melting point: -30 °C[21], -114.18 °C[22]
- Boiling point: -85 °C[23]
- Vapor pressure: 190 hectopascal[24]
- Electric dipole moment: 1.109 debye[25]
- Ionization energy: 12.75 electronvolt[26]
- Safety classification and labelling: NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response[27], Regulation (EC) No. 1272/2008[28]
- On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[29]
Why It Matters
hydrochloric acid has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[30] It is known by 162 alternative names across languages and contexts.[31]