moleculefinder

Calcium hydroxide

CaH2O274.09 g/mol Calculated

Also called slaked lime, hydralime, builders' lime and calcium hydrate.

Slaked lime: the pickling lime that keeps cucumbers crisp, the base of lime mortar and plaster, and the paste used in a root canal.

Sources and notes
  • The introductionfrom sourceMoleculeFinder curated
  • Other namesfrom sourceWikidataIts English label and aliases on Wikidata.
  • Formula and weightcomputedPubChem
  • 2D drawingcomputedPubChem structure, drawn by RDKit

Where you encounter it

Calcium hydroxide on our curated lists.

Household

Garden and pest controlAdded by the maker
Sources and notes
  • Our curated lists and their amountsfrom sourceMoleculeFinder curatedEach amount is an editorial figure from our food and drink lists, not a measurement of any one product.
  • How it gets therefrom sourceMoleculeFinder curatedEach mark is set by hand on our lists, never inferred; a label's ingredient is added by the maker. A row with no mark data says Not marked.

Properties and sources

Calculated by PubChem

Molecular formula
CaH2O2
Molecular weight
74.09 g/mol
Polar surface areatopological
2 Ų
H-bond donors
2
H-bond acceptors
2
Rotatable bonds
0
Complexity
2

Groups it belongs to

Category
Everyday chemistry
Family
Inorganic compounds
Product lists
Garden and pest control
Elements
Calcium
Size
Under 100 g/mol
SMILES[OH-].[OH-].[Ca+2]

PubChem CID 14777 · Wikidata Q182849 · InChIKey AXCZMVOFGPJBDE-UHFFFAOYSA-L · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Calcium hydroxide?
Slaked lime: the pickling lime that keeps cucumbers crisp, the base of lime mortar and plaster, and the paste used in a root canal.
Where is Calcium hydroxide found?
Calcium hydroxide is in these product groups: garden and pest control. from source
What kind of molecule is Calcium hydroxide?
Calcium hydroxide has the formula CaH2O2 and a molecular weight of 74.09 g/mol. MoleculeFinder files it under inorganic compounds, in the everyday chemistry group. from sourcefrom sourcefrom sourcefrom source
What else is Calcium hydroxide called?
Calcium hydroxide is also called slaked lime, hydralime, builders' lime and calcium hydrate. from source
Sources and notes
  • Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
  • Data refreshedfrom sourceMoleculeFinder2026-11-09

Keep exploring

Sources and notes
  • Similar in shapecomputedRDKit Morgan/TanimotoNeighbours by structural fingerprint; the sentence names the chemical groups the two share.
  • The drawingscomputedPubChem structures, drawn by RDKit