Potassium chromate

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Potassium chromate
IUPAC name Potassium Chromate
Identifiers
CAS number [7789-00-6]
Properties
Molecular formula CrK2O4
Molar mass 194.19 g mol-1
Appearance Yellow odorless powder
Density 2.7320 g·cm−3
Melting point

975 °C, 1248 K, 1787 °F

Boiling point

N/A

Solubility in water Soluble
Hazards
MSDS Chemical Safety Data
NFPA 704
0
3
3
 
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references
You may be looking for potassium dichromate

Potassium chromate (K2CrO4) is a yellow chemical indicator used for identifying concentrations of chloride ions in a salt solution with silver nitrate (AgNO3). It is a class two carcinogen and can cause cancer on inhalation.[1]

Contents

[edit] General information

[edit] Physical properties

Potassium Chromate is a lemon yellow compound that is in the form of a crystalline solid, and it is very stable.[citation needed]

[edit] Reactions

When reacted with Lead(II) Nitrate, it creates an orange-yellow precipitate, Lead(II) Chromate, and Potassium Nitrate.

[edit] Dangers/Hazards

Potassium Chromate is very toxic and may be fatal if swallowed. It may also act as a carcinogen, and can create reproductive defects if inhaled or swallowed. It also is a strong oxidizing agent. It may react rapidly, or violently. It is also possible that it may react explosively with other reducing agents and flammable objects.

[edit] References

  1. ^ Potassium chromate information URL last accessed 15 March 2007