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Potassium dichromate

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Potassium dichromate

Molecular formula: Cr2K2O7 CAS# 7778-50-9
Categories: Inorganic salt
Names
English:
Chromic acid, (H2Cr2O7), dipotassium salt(CAS)
EINECS:231-906-6
Potassium bichromate
Potassium dichromate [Wiki]
Potassium dichromate(VI)(IUPAC)
Русский:
Дихромат калия [Wiki]
Хромпик [Wiki]
бихромат калия
двухромовокислый калий
калиевый хромпик
German:
Chromkali
Doppeltchromsaures Kalium
Kaliumbichromat
Kaliumdichromat [Wiki]
Kaliumpyrochromat
Pyrochromsaures Kalium
Español:
Dicromato de potasio [Wiki]
Heptaoxodicromato (VI) de potasio
French:
Dichromate de potassium(IUPAC) [Wiki]
bichromate de potassium
Italiano:
Bicromato di potassio [Wiki]
dicromato di potassio
日本語:
二クロム(VI)酸カリウム(IUPAC)
二クロム酸カリウム [Wiki]
中文:
重铬酸钾 [Wiki]
العربية:
ثنائي كرومات البوتاسيوم
Português:
Bicromato de potássio
Dicromato de potássio [Wiki]

Variants of the formula:

K2Cr2O7
K(+1)2Cr(+6)2O(-2)7
K^+\0O`^-/Cr<_qq4O><_pp4O>/O\Cr<_pp4O><_qq4O>\O^-/0K^+
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Potassium dichromate is involved

  • 2KCl + Na2Cr2O7 -> K2Cr2O7 + 2NaCl
  • 4K2Cr2O7 -> 4K2CrO4 + 2Cr2O3 + 3O2
  • K2Cr2O7 + 2KOH -> 2K2CrO4 + H2O
  • 2K2CrO4 + H2SO4 -> K2Cr2O7 + K2SO4 + H2O
  • K2Cr2O7 + 2H2SO4 → 2CrO3 + 2KHSO4 + H2O