Preparation Of Sodium Chromate
- Sodium Chromate is produced by the reactions of sodium hydroxide, sodium nitrate, and chromium oxide
4 NaOH + 3 NaNO3+ Cr2O3 ——-> 2 H2O + 2 Na2CrO4 + 3 NaNO2
- Sodium Oxide reacts with dichromic acid to form Sodium Chromate and water
4 NaOH + H2Cr2O7 ———> 3 HO + 2 Na2CrO4
- Sodium Peroxide reacts with iron chromate to produce Sodium Chromate, iron oxide, and sodium oxide
7 Na2O2 + 2 FeCr2O4 ——> Fe2O3 + 3 Na2O + 4 Na2CrO4
- Hydrogen Peroxide reacts with (Na3CrO3 )sodium chromate (III) to produce Sodium Chromate, sodium hydroxide, and water
3 H2O2 + 2 Na3CrO3 ——–> 2 H2O + 2 NaOH + 2 Na2CrO4
Sodium Chromate Formula – Structure, Properties, Uses, Sample Questions
Sodium Chromate Formula- Sodium is a chemical with the symbol Na its atomic number is 11. It is a soft flammable silvery white highly reactive metal. It is essential for normal muscle and nerve function. It is the most common alkali metal and the sixth most abundant element on Earth. It is used in the production of titanium, sodamide, sodium peroxide, and sodium hydride.
Chromium is a chemical element with the symbol Cr its automatic number is 24. It is the first element in group 6 in the periodic table. It is a lustrous brittle hard metal. Its color is silver gray and it can be highly chromium occurs mainly in three forms. Metallic chromium is a steel gray solid with a higher melting point that is very used to make steel and other alloys.
Oxygen is a chemical element with the symbol O. Its atomic number is 8 and its electronic configuration is 1s2 2s2 2p4. Joseph Priestley discovered oxygen in 1774. Oxygen gas is colorless, odorless, and tasteless. Oxygen gas is mainly found in the atmosphere. It is highly reactive and forms oxides with almost all elements except noble gases.