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1.04865

Supelco

Potassium dichromate

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

Synonym(s):

Potassium dichromate, Potassium bichromate, Potassium pyrochromate

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About This Item

Empirical Formula (Hill Notation):
Cr2K2O7
CAS Number:
Molecular Weight:
294.18
MDL number:
UNSPSC Code:
12352302
EC Index Number:
231-906-6
NACRES:
NA.21

grade

ACS reagent

Quality Level

Agency

reag. ISO

product line

EMSURE®

Assay

≥99.9% (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, 105°C

pH

3.6 (100 g/L in H2O)

bp

>500 °C/1013 hPa

mp

398 °C

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%
Hg: ≤0.000001%
Na: ≤0.02%
Pb: ≤0.005%

storage temp.

2-30°C

InChI

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

InChI key

KMUONIBRACKNSN-UHFFFAOYSA-N

Related Categories

Application


  • Coupling of gene regulation and carrier modification manipulates bacterial biofilms as robust living catalysts: This research explores the application of potassium dichromate as a catalyst in biotechnological processes, particularly in the modification of bacterial biofilms. These developments show significant promise for bioengineering, where robust living catalysts can play critical roles in industrial bioprocessing and environmental remediation (Yan CH et al., 2024).

  • Exploring the synergistic effect of chromium (Cr) tolerant Pseudomonas aeruginosa and nano zero valent iron (nZVI) for suppressing Cr uptake in Aloe Vera: This study uses potassium dichromate to investigate the effects of chromium exposure on plants and the potential mitigating actions of bioremediation techniques. It highlights the importance of using potassium dichromate in environmental science to assess and develop strategies for managing heavy metal contamination in agriculture (Komal et al., 2024).

  • Preparation and properties of oxidized multi-walled carbon nanotube superhydrophobic composites modified by bio-fatty acids: Potassium dichromate is used here as an oxidizing agent in the synthesis of advanced nanocomposite materials. These materials are significant for their applications in creating superhydrophobic surfaces, which have broad implications in material science and industrial manufacturing, particularly for coatings and environmental applications (Hao X et al., 2024).

  • An internal filtration effect-based "off-on" probe for fluorescent and visual sensing of formaldehyde: In this research, potassium dichromate′s role as a chemical reagent in analytical methods is highlighted. It is used to develop sensitive and specific sensors for detecting hazardous substances like formaldehyde, underscoring its critical role in enhancing public health and safety protocols within laboratory and industrial settings (Fan W et al., 2024).

Analysis Note

Assay (iodometric): ≥ 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 %
Hg (Mercury): ≤ 0.000001 %
Na (Sodium): ≤ 0.02 %
Pb (Lead): ≤ 0.005 %
Loss on Drying (105°C): ≤ 0.05 %

Legal Information

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

Signal Word

Danger

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 - STOT RE 1 Inhalation - STOT SE 3

Target Organs

Cardio-vascular system, Respiratory system

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

危险化学品
易制爆化学品

Certificates of Analysis (COA)

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