Cromato de potasio

K₂CrO₄

IUPAC: Potassium chromate

CAS: 7789-00-6

Descripción general

Potassium chromate is a bright yellow salt used as an indicator in argentometric titrations and as a corrosion inhibitor.

Composición

Elemento Símbolo Átomos Masa atómica
Oxígeno O 4 15,9990
Potasio K 2 39,0980
Cromo Cr 1 51,9960

Composición elemental

O
33,0%
K
40,3%
Cr
26,8%

Usos

  • Analytical chemistry indicator
  • Corrosion inhibitor
  • Leather tanning
  • Textile dyeing

Datos curiosos

  • The Mohr method for chloride determination uses potassium chromate as the indicator

Seguridad

  • ⚠ Carcinogen (Cr(VI))
  • ⚠ Toxic
  • ⚠ Allergenic

Estructura

SMILES

[O-][Cr](=O)(=O)[O-].[K+].[K+]

Propiedades

Tipo
salt
Estado
solid
Masa molar
194,19 g/mol
Densidad
2,7320 g/cm³
Punto de fusión
968,0 °C
Solubilidad
629 g/L at 20°C

Descriptores moleculares

Masa exacta
193,8476
TPSA
80,3 Ų
Donadores de enlace de hidrógeno
0
Aceptores de enlace de hidrógeno
4
Enlaces rotables
0
Átomos pesados
7
Complejidad
62,0

Frequently Asked Questions

What is Cromato de potasio?
Cromato de potasio (K₂CrO₄) is a salt compound with the IUPAC name Potassium chromate.
What is the molecular weight of Cromato de potasio?
Cromato de potasio has a molar mass of 194.19 g/mol.
What state is Cromato de potasio at room temperature?
Cromato de potasio is a solid at room temperature.
Is Cromato de potasio organic or inorganic?
Cromato de potasio is classified as an inorganic compound.
What elements make up Cromato de potasio?
Cromato de potasio (K₂CrO₄) is composed of Oxígeno (O), Potasio (K), Cromo (Cr).