Potassium chromate

Potassium chromate

Chembox new
ImageFile = Potassium-chromate-sample.jpg
IUPACName = Potassium Chromate
Section1 = Chembox Identifiers
CASNo = 7789-00-6

Section2 = Chembox Properties
K = 2 | Cr = 1 | O = 4
Appearance = Yellow odorless powder
Density = 2.7320 g·cm−3
Solubility = Soluble
MeltingPtC = 975
BoilingPt = N/A

Section7 = Chembox Hazards
ExternalMSDS = [http://ptcl.chem.ox.ac.uk/~hmc/hsci/chemicals/potassium_chromate.html Chemical Safety Data]
NFPA-H = 3| NFPA-F = 0
NFPA-R = 3
:"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. [ [http://www.jtbaker.com/msds/englishhtml/p5642.htm Potassium chromate information] URL last accessed 15 March 2007]

General information

Physical properties

Potassium Chromate is a lemon yellow compound that is in the form of a crystalline solid, and it is very stable.Fact|date=March 2008

Reactions

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

Occurrence

Tarapacaite is the natural, mineral form of potassium chromate. It occurs very rarely and till now is known from only few localities on Atacama desert.

Dangers/Hazards

Potassium Chromate is very toxic and may be 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.

References


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Look at other dictionaries:

  • potassium chromate — kalio chromatas statusas T sritis chemija formulė K₂CrO₄ atitikmenys: angl. potassium chromate rus. калий хромовокислый; калия хромат ryšiai: sinonimas – dikalio tetraoksochromatas …   Chemijos terminų aiškinamasis žodynas

  • potassium chromate — noun : a yellow crystalline salt K2CrO4 having uses similar to those of sodium chromate …   Useful english dictionary

  • potassium chromate — noun A potassium salt of chromic acid, KCrO; the yellow crystals are soluble in water, and it is used as an analytical reagent …   Wiktionary

  • Chromate De Potassium — Cristaux de chromate de Potassium Général Nom IUPAC …   Wikipédia en Français

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  • potassium — /peuh tas ee euhm/, n. Chem. a silvery white metallic element that oxidizes rapidly in the air and whose compounds are used as fertilizer and in special hard glasses. Symbol: K; at. wt.: 39.102; at. no.: 19; sp. gr.: 0.86 at 20°C. [1800 10; < NL; …   Universalium

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