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Chromates

Potassium dichromate (31255)

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., assay min. 99.8%

Overview
Potassium dichromate is an orange to red colored, crystalline, inorganic compound that emits toxic chromium fumes upon heating. Potassium dichromate is highly corrosive and is a strong oxidizing agent.  It is used in painting, printing, electroplating and pyrotechnics.
Specifications

General Information

  • Application
    • Essential Salt
  • CAS Number
    • 7778-50-9
  • Concentration
    • 100 %
  • EC Number
    • 231-906-6
  • Grade
    • ACS Grade
  • Linear Formula
    • K2Cr2O7
  • Molar Mass
    • 294.18 g/mol
  • Synonyms
    • Potassium bichromate

Physical Properties

  • Boiling Point/Range
    • Decomposes on heating.
  • Chemical Composition
    • potassium dichromate
  • Color
    • Orange
  • Density
    • 2.7 g/cm3 (20 °C)
  • Flashpoint
    • Not applicable
  • Melting Point/Range
    • 398 °C
  • Odor
    • Odorless
  • Partition Coefficient
    • No data available
  • pH
    • 3.5 (20 °C)
  • Physical Form
    • Crystalline powder
  • Solubility in Water
    • 115 g/l
  • Vapor Pressure
    • No data available hectopascal

Safety Information

  • Chemical Stability
    • Stable under recommended storage conditions.
  • Flammability
    • The product is not flammable.
  • Ignition Temperature
    • Not applicable
  • Incompatible Materials
    • Reducing agents, Hydrazine, Combustible material, Organic materials, Corrosive in contact with metals
  • Oxidizing
    • The substance or mixture is classified as oxidizing with the category 2.
  • Self Ignition
    • Not auto-flammable
  • Thermal Decomposition
    • 500 °C

International Transportation

  • Chemical Class
    • 6.1
  • Harmonized System Code
    • 2841501000
  • Packing Group
    • II
  • Sub Class 1
    • 5.1
  • UN Number
    • 3086

General Information

  • Application
    • Essential Salt
  • CAS Number
    • 7778-50-9
  • Concentration
    • 100 %
  • EC Number
    • 231-906-6
  • Grade
    • ACS Grade
  • Linear Formula
    • K2Cr2O7
  • Molar Mass
    • 294.18 g/mol
  • Synonyms
    • Potassium bichromate

Physical Properties

  • Boiling Point/Range
    • Decomposes on heating.
  • Chemical Composition
    • potassium dichromate
  • Color
    • Orange
  • Density
    • 2.7 g/cm3 (20 °C)
  • Flashpoint
    • Not applicable
  • Melting Point/Range
    • 398 °C
  • Odor
    • Odorless
  • Partition Coefficient
    • No data available
  • pH
    • 3.5 (20 °C)
  • Physical Form
    • Crystalline powder
  • Solubility in Water
    • 115 g/l
  • Vapor Pressure
    • No data available hectopascal

Safety Information

  • Chemical Stability
    • Stable under recommended storage conditions.
  • Flammability
    • The product is not flammable.
  • Ignition Temperature
    • Not applicable
  • Incompatible Materials
    • Reducing agents, Hydrazine, Combustible material, Organic materials, Corrosive in contact with metals
  • Oxidizing
    • The substance or mixture is classified as oxidizing with the category 2.
  • Self Ignition
    • Not auto-flammable
  • Thermal Decomposition
    • 500 °C

International Transportation

  • Chemical Class
    • 6.1
  • Harmonized System Code
    • 2841501000
  • Packing Group
    • II
  • Sub Class 1
    • 5.1
  • UN Number
    • 3086
  • CAS Number : 7778-50-9
  • Synonyms : Potassium bichromate
  • Linear Formula : K2Cr2O7
  • Molar Mass : 294.18 g/mol
  • EC Number : 231-906-6
  • Grade : ACS Grade
  • Application : Essential Salt
  • Partition Coefficient : No data available
  • Color : Orange
  • Physical Form : Crystalline powder
  • Vapor Pressure : No data available hectopascal
  • Flashpoint : Not applicable
  • pH : 3.5 (20 °C)
  • Boiling Point/Range : Decomposes on heating.
  • Odor : Odorless
  • Melting Point/Range : 398 °C
  • Density : 2.7 g/cm3 (20 °C)
  • Chemical Composition : potassium dichromate
  • Solubility in Water : 115 g/l
  • Oxidizing : The substance or mixture is classified as oxidizing with the category 2.
  • Flammability : The product is not flammable.
  • Ignition Temperature : Not applicable
  • Self Ignition : Not auto-flammable
  • Incompatible Materials : Reducing agents, Hydrazine, Combustible material, Organic materials, Corrosive in contact with metals
  • Chemical Stability : Stable under recommended storage conditions.
  • Thermal Decomposition : 500 °C
  • Harmonized System Code : 2841501000
  • UN Number : 3086
  • Packing Group : II
  • Sub Class 1 : 5.1
  • Chemical Class : 6.1
  • Concentration : 100 %