SOLUBILITY RULES

• NITRATE (NO3)

  SOLUBLE
• GROUP 1 (LI, NA, K)

  SOLUBLE
• AMMONIUM (NH4)

  SOLUBLE
• ACCETATE (C2H3O2) or (CH3COO)

  SOLUBLE
• HYDROGEN CARBONATE (HCO3)

  SOLUBLE
• CHLORATE

  SOLUBLE
• PERCHLORATE

  SOLUBLE
• HALOGENS (I, BR, CL)

  SOLUBLE EXCEPT: AG, PB, HG
• SULFATE (SO4)

  SOLUBLE EXCEPT: AG, PB, CA, SR, BA
• CARBONATE (CO2)

  INSOLUBLE EXCEPT: GROUP 1 (K, NA, LI) NH4
• CHROMATE (CRO4)


  INSOLUBLE EXCEPT: GROUP 1 (LI, NA, K) CA, MG, NH4
• PHOSPHATE (PO4)


  INSOLUBLE EXCEPT: GROUP 1 & NH4
• SULFIDE (S)


  INSOLUBLE EXCEPT: GROUP 1 & NH4
• HYDROXIDE (OH)


  INSOLUBLE EXCEPT: GROUP 1 & NH4, CA, BA, SR
• CHLORIDE IS SOLUBLE EXCEPT:

  • AgCl
  • HgCl
  • PbCl
• BROMIDES (BR) ARE SOLUBLE EXCEPT:

  • AgBr
  • HgBr
  • PbBr
  • HgBr
• IODINE (I) IS SOLUBLE EXCEPT:

  • AgI
  • HgI
  • PbI
• SULFATE (SO4) IS SOLUBLE EXCEPT:

  • CaSO4
  • SrSO4
  • BaSO4
  • PbSO4
  • HgSO4
  • AgSO4
• THIOCYANATES (SCN)

  • AgSCN
  • Pb(SCN)
  • HgSCN
• SULFIDES (S) IS INSOLUBLE EXCEPT:

  • GROUP 1
  • GROUP 2
  • NH4 S
• CARBONATE (CO3) IS INSOLUBLE EXCEPT

  • GROUP 1
  • NH4 CO3
• SULFITES (SO3) IS INSOLUBLE EXCEPT:

  • GROUP 1
  • NH4 SO3
• PHOSPHATES (PO4) IS INSOLUBLE EXCEPT:

  • GROUP 1
  • NH4 PO4
• HYDROXIDE (OH) IS INSOLUBLE EXCEPT

  • GROUP 1
  • BA(OH)
  • SR(OH)
  • CA(OH)
• AgCl

  insoluble
• PbCl2

  insoluble
• AgSO4

  insoluble
• NiSO4 (Nickel Sulfate)

  soluble
• LiSO4 (Lithium Sulfate)

  soluble
• K2SO4 (Potassium Sulfate)

  soluble
• LiOH

  soluble
• KBr

  soluble
• PbI2

  insoluble
• Na3PO4

  soluble
• KCl

  soluble
• Pb(NO3)

  soluble
• K2SO4

  soluble
• PbSO4

  insoluble
• KOH

  soluble
• Ba(OH)2

  soluble