A

B

*Caution*: A good deal of heat is liberated when dissolving hydroxide, and if warm water is used, it may boil with explosive violence. Use only cold water to dissolve caustic alkalis.

Mix equal parts of A and B immediately before use. The mixed solution has very poor keeping qualities and should be discarded immediately after using. With normal exposures, development is complete in 2-1/2 to 3 minutes.