[13450] CAS 7778-50-9 | Potassium dichromate, ACS, 99.0% min | Alfa
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Brand: Alfa Aesar
7778-50-9 | Cr2K2O7 | potassium dichromate chromium potassium oxide potassium dichromate(VI) dipotassium bichromate dichromic acid dipotassium salt dipotassium dichromium heptaoxide dipotassium dichromate kaliumdichromat
Chemical Identifiers
CAS
7778-50-9
Molecular Weight (g/mol)
294.18
Synonym
potassium dichromate chromium potassium oxide potassium dichromate(VI) dipotassium bichromate dichromic acid dipotassium salt dipotassium dichromium heptaoxide dipotassium dichromate kaliumdichromat
SMILES
[K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
InChI Key
KMUONIBRACKNSN-UHFFFAOYSA-N
Molecular Formula
Cr2K2O7
IUPAC Name
dipotassium [(oxidodioxochromio)oxy]chromiumoylolate
Specifications
Impurity content
Cl 0.001%
Impurity content
Fe 0.001%
Impurity content
Na 0.02%
Impurity content
SO₄ 0.005%
Insoluble material
0.005%
설명
As an oxidizing agent, in dyeing, painting, decorating porcelain, lithography, in electric batteries, electroplating Potassium dichromate is most often used as an oxidizing agent in laboratories and industries. It is used as a precursor to prepare potassium chrome alum which finds application in leather finishing and tanning. It is utilized in the preparation of chromic acid for cleaning glassware and etching materials It is an active ingredient in cement and is used for retards setting and improves its density and texture. Furthermore, it is used in photography and in photographic screen printing. It is also used in wet test analysis as an analytical lab reagent and in ethanol determination.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Maximum level of impurities: Insoluble matter 0.005%, Loss on drying 0.05%, Cl 0.001%, SO4 0.005%, Ca 0.003%, Fe 0.001%, Na 0.02%
GHS Hazard and Precautionary Statements
Hazard Statements:H272-H301-H310+H330-H314-H317-H334-H335-H340-H350-H360FD-H372
Precautionary Statements:P201-P202-P210-P220-P221-P260-P262-P264b-P270-P271-P272-P280g-P281-P284-P285-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P333+P313-P363-P370+P378q-P501c
Risk & Safety
TSCA:YesRTECS Number:HX7680000
경고:RUO – Research Use Only
CAS7778-50-9FORMULACr2K2O7HAZARD CLASS5.1EINECS231-906-6MDLMFCD00011367PACKAGING GROUPII
| Pakage | 100g, 500g |
|---|---|
| brand | Alfa Aesar |
