Barium Hydroxide Properties, Molecular Formula, Applications - WorldOfChemicals

Barium Hydroxide Properties

Barium Hydroxide

Barium Hydroxide-Molecule Struture
Molecule Structure Image



Barium hydroxide is a chemical compound. It is used in analytical chemistry for the titration of weak acids, particularly organic acids. Its clear aqueous solution is guaranteed to be free of carbonate, unlike those of sodium hydroxide and potassium hydroxide, as barium carbonate is insoluble in water. This allows the use of indicators such as phenolphthalein or thymolphthalein without the risk of titration errors due to the presence of carbonate ions, which are much less basic. It has been used to hydrolyse one of the two equivalent ester groups in dimethyl hendecanedioate. It is also used in the preparation of cyclopentanone, diacetone alcohol and D-Gulonic ?-lactone. It is used in a demonstration of endothermic reactions since, when mixed with an ammonium salt, the reaction becomes cold as heat is absorbed from the surroundings.

Chemical Properties

Appearance White Solid
Boiling Point 780 °C
CAS Number 17194-00-2
Class 8
Crystal Structure Octahedral
Density 2.2 g/cm3
EINECS Number 241-234-5
InChI 1S/Ba.2H2O/h;2*1H2/q+2;;/p-2
Melting Point 407 °C
Molar Mass 171.34 g/mol
Molecular Formula Ba(OH)2
NFPA 704 H-3,F-0,R-0,C-NA
Other_Cations Calcium Hydroxide;Strontium Hydroxide
PG 3
RTECS Number CQ9200000
Synonyms Barium Dihydroxidel;Barium(2+) Hydroxide;Caustic Baryta;Barium(II) Hydroxide