Potassium dichromate, 99.5%, extra pure, Thermo Scientific Chemicals

Product Code	Brand	Quantity	Packaging
10434155	Thermo Scientific Acros 197765000	500 g	Plastic bottle
10206830	Thermo Scientific Acros 197760010	1 kg	Plastic bottle
10286873	Thermo Scientific Acros 197760050	5 kg	Plastic bottle

Description

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Oxidation reagent

Chemical Identifiers

• CAS: 7778-50-9
• Molecular Weight (g/mol): 294.19
• InChI Key: KMUONIBRACKNSN-UHFFFAOYSA-N
• PubChem CID: 24502
• IUPAC Name: dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium

• Molecular Formula: Cr₂K₂O₇
• MDL Number: MFCD00011367
• Synonym: potassium dichromate, potassium bichromate, kaliumdichromat, iopezite, dipotassium bichromate, dipotassium dichromate, potassium dichromate vi, dichromic acid dipotassium salt, dipotassium dichromium heptaoxide, bichromate of potash
• ChEBI: CHEBI:53444
• SMILES: [O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]

Specifications

• Boiling Point: 500.0°C
• CAS: 7778-50-9
• Physical Form: Crystals
• Molecular Formula: Cr₂K₂O₇
• MDL Number: MFCD00011367
• Merck Index: 15, 7748
• Solubility Information: Solubility in water: 125g/L (20°C). Other solubilities: 50 g/100 mL water (100°C), insoluble in alcohol
• SMILES: [O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]
• Molecular Weight (g/mol): 294.19
• ChEBI: CHEBI:53444
• Percent Purity: 99.5%
• Loss on Drying: 0.05% max. (110°C)

• Melting Point: 398.0°C
• Color: Orange to Orange-Red
• Assay Percent Range: 99.4% min. (Iodometry)
• Linear Formula: K₂Cr₂O₇
• Fieser: 08,410; 09,383; 10,324; 12,405
• Synonym: potassium dichromate, potassium bichromate, kaliumdichromat, iopezite, dipotassium bichromate, dipotassium dichromate, potassium dichromate vi, dichromic acid dipotassium salt, dipotassium dichromium heptaoxide, bichromate of potash
• InChI Key: KMUONIBRACKNSN-UHFFFAOYSA-N
• IUPAC Name: dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
• PubChem CID: 24502
• Formula Weight: 294.19
• Grade: Extra Pure
• Chemical Name or Material: Potassium dichromate

Safety and Handling

GHS H Statement
May cause an allergic skin reaction.
Fatal if inhaled.
Causes severe skin burns and eye damage.
Very toxic to aquatic life with long lasting effects.
May cause allergy or asthma symptoms or breathing difficu

GHS P Statement
Wear protective gloves/protective clothing/eye protection/face protection.
Keep away from heat/sparks/open flames/hot surfaces.
- No smoking.
Take any precaution to avoid mixing with combustibles.
In case of major

GHS Signal Word: Danger

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Product Identifier

• Potassium dichromate

Signal Word

• Danger

Hazard Category

• Oxidising solid Category 2
• Acute toxicity Category 2
• Skin corrosion/irritation Category 1 B
• Serious eye damage/eye irritation Category 1
• Respiratory sensitiser Category 1
• Skin sensitiser Category 1
• Germ cell mutagenicity Category 1B
• Carcinogenicity Category 1B
• Reproductive toxicity Category 1B
• Specific target organ toxicity Category 1
• ACUTE AQUATIC Acute 1
• LONG-TERM AQUATIC HAZARD Chronic 1

Hazard Statement

• H272-May intensify fire; oxidiser.
• H301-Toxic if swallowed.
• H310-Fatal in contact with skin.
• H330-Fatal if inhaled.
• H314-Causes severe skin burns and eye damage.
• H317-May cause an allergic skin reaction.
• H334-May cause allergy or asthma symptoms or breathing difficulties if inhaled.
• H340-May cause genetic defects.
• H350-May cause cancer.
• H360FD-May damage fertility. May damage the unborn child.
• H372-Causes damage to organs.
• H410-Very toxic to aquatic life with long lasting effects.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• P371+P380+P375-In case of major fire and large quantities: Evacuate area Fight fire remotely due to the risk of explosion.
• P310-Immediately call a POISON CENTER/doctor/.
• P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
• P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

RUO – Research Use Only