Potassium Chromate

K₂CrO₄

IUPAC: Potassium chromate

CAS: 7789-00-6

개요

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

구성

원소 기호 원자 원자 질량
Oxygen O 4 15.9990
Potassium K 2 39.0980
Chromium Cr 1 51.9960

원소 구성

O
Oxygen ×4
33.0%
K
Potassium ×2
40.3%
Cr
Chromium ×1
26.8%

용도

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

흥미로운 사실

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

안전

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

Structure

SMILES

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

성질

유형
salt
상태
solid
몰 질량
194.19 g/mol
밀도
2.7320 g/cm³
녹는점
968.0 °C
용해도
629 g/L at 20°C

Molecular Descriptors

Exact Mass
193.8476
TPSA
80.3 Ų
H-Bond Donors
0
H-Bond Acceptors
4
Rotatable Bonds
0
Heavy Atoms
7
Complexity
62.0

관련 화합물

Diammonium Phosphate

(NH₄)₂HPO₄

Ammonium Chloride

NH₄Cl

Barium Chloride

BaCl₂

Cadmium Sulfide

CdS

Calcium Sulfate

CaSO₄

Cerium(III) Chloride

CeCl₃

Copper(II) Sulfide

CuS

Ammonium Sulfate

(NH₄)₂SO₄

Ammonium Bicarbonate

NH₄HCO₃

Calcium Propionate

Ca(C₂H₅COO)₂

Frequently Asked Questions

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