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Merck
CN

12249

Potassium chromate

puriss., ≥99%

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About This Item

Linear Formula:
K2CrO4
CAS Number:
Molecular Weight:
194.19
NACRES:
NA.55
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
232-140-5
MDL number:
Assay:
≥99%
Form:
powder or crystals
Solubility:
water: soluble (39.4 g/l at 30 °C (86 °F), 637 g/l at 20 °C (68 °F))
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vapor density

6.7 (vs air)

Quality Segment

grade

puriss.

assay

≥99%

form

powder or crystals

loss

≤0.5% loss on drying, 105 °C

pH

8.5-10.0 (20 °C, 5%)

mp

971 °C (lit.)

solubility

water: soluble (39.4 g/l at 30 °C (86 °F), 637 g/l at 20 °C (68 °F))

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤200 mg/kg

cation traces

Ca: ≤50 mg/kg

SMILES string

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

InChI

1S/Cr.2K.4O/q;2*+1;;;2*-1

InChI key

XMXNVYPJWBTAHN-UHFFFAOYSA-N

Application

  • Analysis of the Effects of Cr(VI) Exposure on mRNA Modifications.: This research investigates the impact of potassium chromate exposure on mRNA modifications using sophisticated analytical chemistry techniques, revealing insights into the molecular mechanisms of chromium toxicity and its implications for human health (Chen et al., 2019).
  • Determination of urine oxalate level in rats with renal calcium oxalate calculus by high-performance liquid chromatography.: Utilizing potassium chromate in the chromatographic analysis, this study presents a method for accurately measuring urine oxalate levels, crucial for research on kidney stone prevention (Cao et al., 2015).
  • Shotgun proteomic analysis unveils survival and detoxification strategies by Caulobacter crescentus during exposure to uranium, chromium, and cadmium.: Incorporates potassium chromate to study microbial resistance mechanisms through proteomic profiling, providing valuable data for bioremediation strategies (Yung et al., 2014).
  • Analytical study of modern paint layers on metal knight shields: the use and effect of titanium white.: Features methods where potassium chromate aids in the identification of chemical components in cultural heritage conservation studies (Lauridsen et al., 2014).


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Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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