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Alfa Aesar™ Potassium dichromate, 99%

Chemical Identifiers

Chemical Name or Material Potassium dichromate
CAS 7778-50-9
Molecular Formula Cr2K2O7
Linear Formula K2Cr2O7
Formula Weight 294.18g/mol
MDL Number MFCD00011367
UN Number UN3087
Merck Index 14,7627
Synonym Potassium bichromate
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Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA187220E

 
alfa aesar™
A18722-0E
2500g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAA1872236

 
alfa aesar™
A18722-36
500g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Description & Specifications

Specifications

Odor Odorless
Melting Point 398°C
Quantity 2500g
Chemical Name or Material Potassium dichromate
CAS 7778-50-9
Assay 99%
Molecular Formula Cr2K2O7
Linear Formula K2Cr2O7
Formula Weight 294.18g/mol
MDL Number MFCD00011367
UN Number UN3087
Merck Index 14,7627
Synonym Potassium bichromate
Health Hazard 1 Danger
Health Hazard 2 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.
Health Hazard 3 GHS P Statement
P221-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P405-P501a
Take any precaution to avoid mixing with combustibles.
IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Specific treatment is urgent (see label).
Rinse mouth.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
DOT Information Transport Hazard Class: 5.1; Packing Group: II; Proper Shipping Name: OXIDIZING SOLID, TOXIC, N.O.S.
RTECS Number HX7680000
TSCA TSCA

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.

Safety and Handling

Danger

GHS P Statement
P221-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P405-P501a
Take any precaution to avoid mixing with combustibles.
IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Specific treatment is urgent (see label).
Rinse mouth.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

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.