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Cations - List 

+1 Charge:

Name
Symbol
Commonly found in:
Lithium

Li+

Rechargeable batteries (LiH)
Sodium

Na+

Table salt (NaCl)
Caustic soda (NaOH)
Baking soda (NaHCO3)
Soap (Na-fatty acid)
Potassium

K+

Caustic potash (KOH)
Sea salt (KCl)
Hydrogen ion
H+ All acids
Ammonium
NH4+ Most fertilisers
Cold packs (NH4NO3)
Rocket fuel(NH4ClO4)
Explosives(NH4NO3)
Copper (I)
Cu+ Benedict's test 
(brick-red precipitate)
Silver
Ag+ Photographic film; photochromic glass 
(AgCl)
White precipitate in chloride test (AgCl)

       
+2 Charge:
Name
Symbol
Commonly found in:
Magnesium
Mg2+ Sea salt (MgCl2)
Milk of Magnesia (Mg(OH)2)
Calcium
Ca2+ Lime water (Ca(OH)2)
Chalk (CaCO3)
Tofu, Tofufa (CaSO4)
Plaster (CaSO4)
Barium
Ba2+ X-ray imaging (Ba(OH)2)
White precipitate in sulphate test (BaSO4)
White paint (BaSO4)
Iron (II)
Fe2+ Rust (Fe(OH)2)
Fool's gold (FeS2)
Brown ring test (FeSO4)
Black paint, magnets (Fe3O4)
Copper (II)
Cu2+ Electrolyte, Benedict's reagent, laboratory reagent (CuSO4)
Green paint (CuCO3)
Zinc
Zn2+ Galvanised steel (ZnO)
Tin (II)
Sn2+ Tin electroplating - electrolyte (SnCl2)
Lead (II)
Pb2+ Lead glass (PbO)
Discharged car batteries - electrolyte (PbSO4)
Yellow paint (PbCrO4)
         
+3 Charge

Name
Symbol
Commonly found in:
Aluminium
Al3+ Sunscreen (Al2O3)
Iron (III)
Fe3+ Rust (Fe2O3 . xH2O)
Black paint, magnets (Fe3O4)

 
 

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Senarai Kation

 
Senarai kation biasa dijumpai
     
Senarai di bawah menyenaraikan kation (+) yang biasa dijumpai dalam bidang Kimia.
 
Cas +1
Nama
Simbol
Biasanya dijumpai dalam:
Lithium

Li+

Bateri boleh dicaj semula (LiH)
Natrium

Na+

Garam (NaCl)
Soda kaustik (NaOH)
Soda penaik (NaHCO3)
Sabun (Na-asid lemak)
Kalium

K+

Potash kaustik (KOH)
Garam laut (KCl)
Ion hidrogen 
H+ Semua asid
Ammonium
NH4+ Kebanyakan baja
Kuprum (I)
Cu+ Ujian Benedict 
(mendakan merah bata)
Argentum
Ag+ Filem fotografik; kaca fotokromik 
(AgCl)
Mendakan putih dalam ujian klorida (AgCl)
   
Cas +2
Nama
Simbol
Biasanya dijumpai dalam:
Magnesium
Mg2+ Garam laut (MgCl2)
Susu Magnesia (Mg(OH)2)
Kalsium
Ca2+ Air kapur (Ca(OH)2)
Kapur (CaCO3)
Tofu, Tofufa (CaSO4)
Plaster (CaSO4)
Barium
Ba2+ Gambaran sinar-X (Ba(OH)2)
Mendakan putih dalam ujian sulfat (BaSO4)
  Cat putih (BaSO4)
Cat kuning (BaCrO4)
Ferum (II)
Fe2+ Karat (Fe(OH)2)
Emas palsu (FeS2)
  Ujian cincin perang (FeSO4)
Cat hitam, magnet (Fe3O4)
Kuprum (II)
Cu2+ Elektrolit, bahan uji Benedict, bahan uji bilik makmal biasa (CuSO4)
Cat hijau (CuCO3)
Zinc
Zn2+ Besi tergalvani  (ZnO)
Stanum (II)
Sn2+ Elektrolit untuk elektropenyaduran stanum (SnCl2)
Plumbum (II)
Pb2+ Kaca plumbum (PbO)
  Bateri kereta ternyahcas - elektrolit (PbSO4)

    
Cas +3 
Nama
Simbol
Biasanya dijumpai dalam:
Aluminium
Al3+ Pelindung suria (Al2O3)
Ferum (III)
Fe3+ Karat (Fe2O3 . xH2O)
  Cat hitam, magnet (Fe3O4)
 

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