Chromium hydroxide

Chromium(III) hydroxide

Names
IUPAC name Chromium(3+) hydroxide
Identifiers
CAS Number	1308-14-1
3D model (JSmol)	Interactive image
ECHA InfoCard	100.013.781
PubChem CID	14787
RTECS number	GB2670000
InChI InChI=1S/Cr.3H2O/h;3*1H2 Key: LXMQZGGLHVSEBA-UHFFFAOYSA-N
SMILES [OH-].[OH-].[OH-].[Cr+++]
Properties
Chemical formula	Cr(OH)3
Molar mass	103.02 g/mol
Appearance	green, gelatinous precipitate
Density	3.11 g/cm3
Solubility in water	insoluble
Hazards
US health exposure limits (NIOSH):
PEL (Permissible)	TWA 1 mg/m3
REL (Recommended)	TWA 0.5 mg/m3
IDLH (Immediate danger)	250 mg/m3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Chromium(III) hydroxide is an inorganic compound with the chemical formula Cr(OH)₃. It is polymer with an undefined structure and low solubility. It is amphoteric, dissolving in both strong base and strong acid.

It is used as a pigment, as a mordant, and as a catalyst for organic reactions.

It is manufactured by adding a solution of ammonium hydroxide to a solution of chromium salt.