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Chromate

The chromium atoms are in oxidation state +6 in both, and the chromate and dichromate ions are fairly strong oxidizing agents. Chromium in the +6 (or VI) oxidation state is often referred to as hexavalent chromium.

· In an aqueous solution, chromate and dichromate anions are in a chemical equilibrium.
2 CrO42- + 2 H3O+ potassium fluoride, potassium fluoborate, tin fluoborate, copper fluoborate, potassium bi fluoride, ammonium silico fluoride, potassium silico fluoride Cr2O72- + 3 H2O

- Barium Chromate
- Magnesium Chromate
- Lithium Chromate
- Sodium Chromate
- Copper Chromate
- Ammonium Chromate
- Potassium Chromate


  Barium Chromate

Barium chromate (or barium chromate oxide or chromic acid barium) is a fine light yellow powder with the formula BaCrO4.
It is very insoluble in water, but is soluble in acids:
2 BaCrO4 + 2 H+ 2 Ba2+ + Cr2O72- + H2O
It is used in some pyrotechnic compositions, especially delay compositions, as an oxidizer.



  Copper Chromate

We are currently having the exterior of some copper coils finished with luster-on cobra c conversion coating to prevent cosmetic discoloration during humidity exposure. Does anyone know of any military/commercial/industrial specifications - along the lines of astm b912 or mil-c-5541 - that could be called out on our part drawings to specify this finish



  Magnesium Chromate

Cas
13423-61-5 Boiling Point °C 211.5
Density G/Cm3 1.695 Crystal Structure Rhomb

Catalog No. Product Description Purity % Particle Size Cost Per Pound
MG-401 magnesium chromate powder, yellow to red 99.8 n/a 1-2, 3-10, 11-25, 26-100 inquire





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