Chemical Properties
Also known as chrome alum and chrome potash alum, CrK(S04)2·12H20 is dark, violet-red crystals that are efflorescent and soluble in water. Derived by reducing potassium dichromate in dilute sulfuric acid with sulfurous acid. Used in tanning(chrome-tan liquors), textile dye(mordant), photography (fixing bath)and ceramics.
Description
Chromium potassium sulfate is a crystallinecompound whose color may range from violet-red to black.Molecular weight =287.3; Freezing/Melting point =89℃;Soluble in water
Chemical Properties
Chromium potassium sulfate is a crystalline compound whose color may range from violet-red to black
Uses
Tanning (chrome-tan liquors), textile dye (mordant), photography (fixing bath), ceramics.
General Description
The higher the pH more is the chromium (III) (crystal growth suppressor) adsorbed, on the surface of potassium sulfate crystal powder which is suspended in saturated solutions.
Hazard
Toxic by ingestion.
Safety Profile
Mutation data reported.
Questionable carcinogen. When heated to
decomposition it emits toxic fumes of K2O.
See also CHROMIUM COMPOUNDS and
SULFATES.
Potential Exposure
This material is used in tanning of leather; dyeing of fabrics; manufacture of glues and gums, chromium salts; ink, photographic emulsions, and ceramics
First aid
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
storage
Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area. Keep away from heat.
Shipping
UN3288 Toxic solids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Incompatibilities
Contact with magnesium, aluminum may cause fire and explosion hazard.
