Kodak D-76c

   
KODAK Developer D-76c
water (125°F)   750ml  
metol   2.0g  
hydroquinone   5.0g  
sodium sulfite (anhydrous)   100g  
borax (decahydrate)   2.0g  
potassium bromide   2.0g  
potassium iodide   10mg  
water to make   1 liter  
       

D-76c is a low contrast developer intended for metalographic and spectrographic plates. D-76c contains 0.25g/L potassium bromide and 10mg/L of potassium iodide in addition to straight D-76. One reason for the addition of iodide is said to suppress abrasion marks.