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[A18722] CAS 7778-50-9 | Potassium dichromate, 99% | 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

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설명

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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

Appearance (Color)
Orange
Form
Crystals or powder or crystalline powder
Assay (Iodometric Titration)
≥98.5 to ≤101.5%

설명

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 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.

Applications
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 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.

Solubility
Soluble in water. Insoluble in alcohol.

Notes
Incompatible with strong oxidizing agents, reducing agents, strong bases, organic materials, acids, powdered metals, acid anhydrides and hydrazine.

Other References:

Merck Index:14,7627UN Number:UN3087

GHS Hazard and Precautionary Statements

Hazard Statements:H272-H301-H310+H330-H314-H317-H334-H335-H340-H350-H360FD-H372
GHS H StatementH272-H301-H330-H334-H340-H350-H360-H372-H314-H312-H317May intensify fire; oxidizer.Toxic if swallowed.Fatal if inhaled.May cause allergy or asthma symptoms or breathing difficulties if inhaled.May cause genetic defects.May cause cancer.May damage fertility or the unborn child.Causes damage to organs through prolonged or repeated exposure.Causes severe skin burns and eye damage.Harmful in contact with skin.May cause an allergic skin reaction.
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

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Pakage

2500g, 500g
brand

Alfa Aesar
SKU: A18722 Category:  Brand:
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[A18722] CAS 7778-50-9 | Potassium dichromate, 99% | Alfa

[A18722] CAS 7778-50-9 | Potassium dichromate, 99% | Alfa

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