Salts & Minerals
REACH
Sodium dichromate dihydrate
CAS Number
7789-12-0
EC Number
616-541-6
What is Sodium dichromate dihydrate?
Sodium dichromate dihydrate (CAS 7789-12-0) is a hexavalent chromium salt; an orange-red crystalline solid.
Where is Sodium dichromate dihydrate used?
- Leather tanning: precursor for chrome tanning liquors
- Metal finishing: chromate conversion coatings that protect steel, aluminum and zinc from corrosion
- Mining and hydrometallurgy: flotation depressant and reagent for selective separation of sulfide ores
- Textile dyeing: mordant that fixes chrome-complex dyes onto wool and natural fibers
- It functions as a powerful oxidizing agent and corrosion inhibitor.
Commercial specifications
- 99%+ purity
- 25 kg bags, drums and bulk quantities
Other Names (Synonyms)
disodium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium;dihydrate|Disodium dichromate dihydrate|Chromic acid (H2Cr2O7), disodium salt, dihydrate|52125XYY2A|DICHROMIC ACID (H2Cr2O7), DISODIUM SALT, DIHYDRATE|RefChem:1098784|NCGC00091922-02
How is Sodium dichromate dihydrate classified and handled safely? Learn More
Danger
GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard GHS05· Corrosive GHS06· Toxic
Hazard Statements
H301 Toxic if swallowed [Danger Acute toxicity, oral]
H311 Toxic in contact with skin [Danger Acute toxicity, dermal]
H314 Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H317 May cause an allergic skin reaction [Warning Sensitization, Skin]