sodium chromate Product Description:
Being a well-established organization, we are engaged in offering a distinguished range of Sodium Chromate.
- Safe to use
- Highly effective
- Longer shelf life
Use and sodium chromate Manufacturer
Chrome iron ore is melted in reverberatory furnace with lime and soda, in presence of air. The melt is dissolved in water, a small amount of sodium carbonate is added, the solution decanted, acidified with acetic acid, concentrated, and crystallized.
Sodium chromate is produced commercially by roasting sodium chromate Manufacturer ore with sodium carbonate, or with sodium carbonate and calcium oxide, and leaching to dissolve the sodium chromate . After treatment to remove hydrated alumina, the sodium chromate Manufacturer solution is either marketed directly or evaporated to produce hydrated or anhydrous crystals.
To prepare the salt, sodium dichromate solution is usually mixed with a stoichiometric amount of sodium hydroxide, and the salt solution is then crystallized or spray dried. The 96.5 – 98.5% product (0.4% NaCl, 2% Na2SO4) is stored and dispatched in watertight steel drums.