double salt

/ˌdʌbəl sɔlt/

Other forms: double salts

Definitions of double salt

1. noun

   a solution of two simple salts that forms a single substance on crystallization
   types:

   alum, potash alum, potassium alum

   a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum

   alum, ammonia alum, ammonium alum

   a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum

   Rochelle salt, Rochelle salts, potassium sodium tartrate

   a double salt used in Seidlitz powder; acts as a cathartic

   Paris green

   a toxic double salt of copper arsenate and copper acetate

   type of:

   salt

   a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)

   primary solid solution, solid solution

   a homogeneous solid that can exist over a range of component chemicals; a constituent of alloys that is formed when atoms of an element are incorporated into the crystals of a metal