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Potassium Dichromate

Potassium Dichromate

CAS Number: 7778-50-9

Molecular Formula: K2Cr2O7

Purity: Potassium Dichromate 99.98% purity

About Potassium Dichromate

Potassium Dichromate (CAS 7778-50-9) remains a cornerstone in the North American metallurgy and aerospace sectors, where General Industry purity 98% is the benchmark for high-performance corrosion inhibitors and surface treatments that must meet rigorous military and industrial specifications. Potassium Bichromate serv...

Synonyms

  • Bichromate, Potassium
  • Dichromate, Potassium
  • K2Cr2O7
  • Potassium Bichromate
  • Potassium Dichromate
View all

Potassium Dichromate Specifications

CAS Number
7778-50-9
Molecular Formula
K2Cr2O7
Molecular Weight
296.20
IUPAC Name
dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
Canonical SMILES
[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]
InChI Key
KMUONIBRACKNSN-UHFFFAOYSA-N
InChI
InChI=1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1
EINECS Number
231-906-6
HSN No
28415090
Molecular Weight
296.20
Melting Point (Experimental)
398 °C
Density (Experimental)
2.676 g/cm³ Temp: 25 °C
Melting point
748°F
Boiling point
Decomposes at 932°F
solubility
10 to 50 mg/mL at 68°F
density
2.676 at 77 °F (USCG, 1999) - Denser than water; will sink
Purity
Potassium Dichromate 99.98% purity
Hazard Classes and Categories
H272: May intensify fire; oxidiser H301: Toxic if swallowed H312: Harmful in contact with skin H330: Fatal if inhaled H317: May cause an allergic skin reaction H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled H340: May cause genetic defects H360FD: May damage fertility. May damage the unborn child H372: Causes damage to organs through prolonged or repeated exposure H350: May cause cancer H314: Causes severe skin burns and eye damage

Analytical Reagent

A powerful oxidizing agent used in various analytical procedures, including redox titrations to determine the concentration of reducing agents such as ferrous ions, hydrogen sulfide, and sulfurous acid

Leather Tanning Agent

A critical precursor in the production of potassium chrome alum, used to stabilize collagen fibers in animal hides to enhance the durability and quality of leather products

Dye and Pigment Intermediate

A versatile starting material employed in the manufacture of chrome yellow pigments, dyes for textiles, and for fixing colors to fabrics to improve vibrancy

Wood Preservative and Stainer

A functional chemical used in wood treatment to protect against decay and to achieve specific aesthetic staining effects

Metal Finishing Agent

A key component in electroplating and the passivation of steel to improve corrosion resistance and provide durable finishes for industrial components

Chemical Synthesis Oxidant

A selective oxidizing agent used in organic chemistry to convert primary and secondary alcohols into aldehydes, ketones, or carboxylic acids.

  1. Bichromate, Potassium
  2. Dichromate, Potassium
  3. K2Cr2O7
  4. Potassium Bichromate
  5. Potassium Dichromate

Potassium Dichromate FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

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California Prop 65*

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