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  7. Potassium dichromate, 99%

Potassium dichromate, 99%

Catalog No. p-7024305
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Quantity:
500 g
2500 g
Catalog No. Quantity
AAA1872236 500 g
AAA187220E 2500 g
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Catalog No. AAA1872236

Supplier: Thermo Scientific Chemicals A1872236

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This chemical may require us to obtain additional information for our regulatory and chemical compliance records. If required, we will contact you for this information once your order is placed.

Description

CAS: 7778-50-9 | Cr2K2O7 | 294.182 g/mol

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.

Chemical Identifiers

CAS 7778-50-9
Molecular Formula Cr2K2O7
Molecular Weight (g/mol) 294.182
MDL Number MFCD00011367
InChI Key KMUONIBRACKNSN-UHFFFAOYSA-N
Synonym potassium dichromate, potassium bichromate, kaliumdichromat, iopezite, dipotassium bichromate, dipotassium dichromate, potassium dichromate vi, dichromic acid dipotassium salt, dipotassium dichromium heptaoxide, bichromate of potash
PubChem CID 24502
ChEBI CHEBI:53444
IUPAC Name dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
SMILES [O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]

Specifications

Melting Point 398°C
Quantity 500 g
Linear Formula K2Cr2O7
UN Number UN3087
Merck Index 14,7627
Solubility Information Soluble in water. Insoluble in alcohol.
Formula Weight 294.18
Percent Purity 99%
Odor Odorless
Density 2.676
Chemical Name or Material Potassium dichromate
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Safety and Handling

Hazard Category H272-H301-H310+H330-H314-H317-H334-H335-H340-H350-H360FD-H372
Hazard Statement GHS H Statement
H272-H301-H330-H334-H340-H350-H360-H372-H314-H312-H317
May 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 Statement 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
DOTInformation Transport Hazard Class: 5.1; Packing Group: II; Proper Shipping Name: OXIDIZING SOLID, TOXIC, N.O.S.
EINECSNumber 231-906-6
RTECSNumber HX7680000
TSCA Yes
Recommended Storage Ambient temperatures

RUO – Research Use Only