Interaction | Reaction | Process     Data Page

Calcium hydroxide is slightly soluble in water (0.18 g/100mL). It dissolves to give a saturated solution called "lime water".

Calcium hydroxide solution "should" be strongly alkaline, but the low solubility of calcium hydroxide stops the solution having a very high pH. Warning, there is possible confusion over the use of word "strong" in this situation. Hydroxide ion is a strong Brønsted base, but as the calcium salt it can only form a low concentration.

Ca(OH)2
  +  
H2O
         
Ca2+
  +  
2
[OH]
Reactant Page Go To Go To
Calcium hydroxide     Reactions Using    Reactions Forming
Water Solvent    Reactions Using    Reactions Forming
Calcium ion     Reactions Using    Reactions Forming
Hydroxide ion     Reactions Using    Reactions Forming

Interaction, Reaction, Process defined as:
British A-Level Chemistry: AS
Dissolution: With Ionisation

© Mark R. Leach 1999 –


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