Potassium Bromide vs. Sodium Bromide

[Color Photographer]

Both potassium bromide and sodium bromide are anti fogging agents.

Are both equal, or are there major differences?

 

[Gerald C Koch]

No there are no major differences. Sometimes sodium bromide was specified because it was a bit cheaper. 0.86 g of sodium bromide is equivalent to 1.0 g of potassium bromide.