크로뮴산칼륨

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
산소 O 4 15.9990
칼륨 K 2 39.0980
크로뮴 Cr 1 51.9960

원소 구성

O
산소 ×4
33.0%
K
칼륨 ×2
40.3%
Cr
크로뮴 ×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

구조

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

분자 기술자

정확 질량
193.8476
TPSA
80.3 Ų
수소결합 주개
0
수소결합 받개
4
회전 가능 결합
0
중원자
7
복잡도
62.0

관련 화합물

염화은

AgCl

질산은

AgNO₃

염화바륨

BaCl₂

염화칼륨

KCl

인산칼슘

Ca₃(PO₄)₂

질산칼륨

KNO₃

탄산리튬

Li₂CO₃

탄산바륨

BaCO₃

탄산칼륨

K₂CO₃

탄산칼슘

CaCO₃

Frequently Asked Questions

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