Chromium(III) potassium sulfate

  • Chrome alum
  • Chromium potassium sulfate (1:1:2)
  • Chrome potash alum
  • Chromic potassium sulfate
Formula
KCr(SO4)2
Structure
Description
Grayish green crystals.
Uses
Mordant for dyeing fabrics uniformly.

Registry Numbers and Inventories.
CAS
10141-00-1
EC (EINECS/ELINCS)
233-401-6
RTECS
GB6845000
RTECS class
Tumorigen; Mutagen
Merck
12,2286
Beilstein/Gmelin
38698 (G)
Swiss Giftliste 1
G-1431
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
CrKO8S2
Formula mass
283.22
Melting point, °C
89
Boiling point, °C
400
Density
2.548 g/cm3 (25 C)
Solubility in water
Insoluble
Dielectric constant
3.5

Hazards and Protection.

Fire.

Health.
Poison_Class
3
Exposure effects

First aid
 

Transport.