KODAK Developer D-76 provides full emulsion speed and excellent shadow detail with normal contrast, and produces fine grain with a variety of continuous-tone black-and-white films. For greater sharpness, but with a slight increase in graininess, you can use a 1:1 dilution of this developer. It yields a long density range, and its development latitude allows push processing with relatively low fog. Proper replenishment of Developer D-76 with KODAK Replenisher D-76R will increase the capacity of the developer and maintain process consistency without an increase in the development time
Powder to make 1L of development liquid.
Full Datasheet available here: https://imaging.kodakalaris.com/sites/uat/files/wysiwyg/pro/chemistry/j78.pdf