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1.04864

Potassium dichromate

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Synonym(s):

Potassium dichromate, Potassium bichromate, Potassium pyrochromate

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Size/SKUAvailabilityPrice
500 g
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$287.00
1 kg
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$442.00

About This Item

Linear Formula:
K2Cr2O7
CAS Number:
Molecular Weight:
294.18
UNSPSC Code:
12352302
EC Index Number:
231-906-6
NACRES:
NA.21
MDL number:
Assay:
≥99.9% dry basis (iodometric)
Grade:
ACS reagent
Form:
crystalline
Solubility:
115 g/L

$287.00


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grade

ACS reagent

Quality Segment

agency

reag. ISO, reag. Ph. Eur.

product line

EMSURE®

assay

≥99.9% dry basis (iodometric)

form

crystalline

potency

90.5 mg/kg LD50, oral (Rat), 1170 mg/kg LD50, skin (Rat)

impurities

≤0.005% Insoluble matter

loss

≤0.05% loss on drying, 130 °C

pH

3.6 (100 g/L in H2O)

bp

>500 °C/1013 hPa

mp

398 °C

solubility

115 g/L

density

2.7 g/cm3 at 20 °C

bulk density

1250 kg/m3

anion traces

chloride (Cl-): ≤0.001%, sulfate (SO42-): ≤0.005%

cation traces

Ca: ≤0.002%, Cu: ≤0.001%, Fe: ≤0.001%, Na: ≤0.02%, Pb: ≤0.005%

storage temp.

2-30°C

SMILES string

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

InChI

1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1

InChI key

KMUONIBRACKNSN-UHFFFAOYSA-N

Application

  • LC-HRMS methods for the quantification of two artemisinin drugs and their metabolites in rat blood and plasma.: This study develops a liquid chromatography-high resolution mass spectrometry (LC-HRMS) method using potassium dichromate as a calibration standard, significantly enhancing the accuracy and precision in pharmaceutical analysis (Zhou et al., 2024).
  • A novel model extended from the Bouguer-Lambert-Beer law can describe the non-linear absorbance of potassium dichromate solutions and microalgae suspensions.: Research presents a novel mathematical model incorporating potassium dichromate, offering a more accurate method for assessing the optical properties of solutions, critical for analytical applications in bioengineering and environmental studies (Yeh et al., 2023).
  • Melatonin Alleviated Potassium Dichromate-Induced Oxidative Stress and Reprotoxicity in Male Rats.: Investigates the protective effects of melatonin against oxidative stress caused by potassium dichromate in clinical settings, providing insights into its potential therapeutic applications (Bashandy et al., 2021).
  • Assessing the acute and chronic toxicity of exposure to naturally occurring oil sands deposits to aquatic organisms using Daphnia magna.: Features a study on the environmental impact of potassium dichromate, providing essential data for environmental toxicology and pollution assessment (Cardoso et al., 2020).

Analysis Note

Assay (iodometric, calc. on dried substance): ≥ 99.9 %
Insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Ca (Calcium): ≤ 0.002 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.001 %
Na (Sodium): ≤ 0.02 %
Pb (Lead): ≤ 0.005 %
Loss on drying (130 °C): ≤ 0.05 %

Other Notes

Replaces: PX1445-2; PX1445

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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This Item
104865193215207802
description

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

description

for analysis (max. 0.000001% Hg) EMSURE® ACS,ISO

description

for analysis EMPARTA® ACS

description

ACS reagent, ≥99.0%

form

crystalline

form

crystalline

form

-

form

crystals

assay

≥99.9% dry basis (iodometric)

assay

≥99.9% (iodometric)

assay

-

assay

≥99.0%

solubility

115 g/L

solubility

water: soluble (ca.29.4 g/l at 20 °C (68 °F))

solubility

-

solubility

water: soluble (ca.29.4 g/l at 20 °C (68 °F))

Quality Level

300

Quality Level

300

Quality Level

200

Quality Level

200

grade

ACS reagent

grade

ACS reagent

grade

ACS reagent

grade

ACS reagent

pH

3.6 (100 g/L in H2O)

pH

3.6 (100 g/L in H2O)

pH

-

pH

3.5-5.0 (25 °C, 29.4 g/L)


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signalword

Danger

target_organs

Cardio-vascular system, Respiratory system

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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