Millipore Sigma Vibrant Logo

102403 Potassium dichromate

Potassium dichromate volumetric standard, secondary reference material for redox titration, traceable to NIST SRM Certipur® Reag. USP. Potassium dichromate CAS No. 7778-50-9, EC Number 231-906-6.

Potassium dichromate MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: Potassium bichromate, Potassium pyrochromate

CAS #: 7778-50-9 EC Number: 231-906-6 Molar Mass: 294.18 g/mol Chemical Formula: K₂Cr₂O₇ Hill Formula: Cr₂K₂O₇ Grade: Reag. USP
View Products on Sigmaaldrich.com
102403
View Pricing & Availability

Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
7778-50-9231-906-6Cr₂K₂O₇K₂Cr₂O₇294.18 g/molReag. USP

Pricing & Availability

Catalogue Number AvailabilityPackaging Qty/Pack Price Quantity
1024030080
Retrieving availability...
—
Fulfillment and Delivery Delayed Fulfillment and Delivery Delayed
In Stock 
Discontinued
Limited Quantities Available
Availability to be confirmed
    Remaining : Will advise
      Remaining : Will advise
      Will advise
      Contact Customer Service
      Contact Customer Service

      		 Glass bottle 80 g
      Retrieving price...
      Price could not be retrieved
      Minimum Quantity is a multiple of
      Maximum Quantity is
      Upon Order Completion More Information
      You Saved ()
       
      —
      Request Pricing
      		 —
      1024030083
      Retrieving availability...
      —
      Fulfillment and Delivery Delayed Fulfillment and Delivery Delayed
      In Stock 
      Discontinued
      Limited Quantities Available
      Availability to be confirmed
        Remaining : Will advise
          Remaining : Will advise
          Will advise
          Contact Customer Service
          Contact Customer Service

          		 Glass bottle 80 g
          Retrieving price...
          Price could not be retrieved
          Minimum Quantity is a multiple of
          Maximum Quantity is
          Upon Order Completion More Information
          You Saved ()
           
          —
          Request Pricing
          		 —
          Description
          Catalogue Number102403
          SynonymsPotassium bichromate, Potassium pyrochromate
          References
          Product Information
          CAS number7778-50-9
          EC index number024-002-00-6
          EC number231-906-6
          GradeReag. USP
          Hill FormulaCr₂K₂O₇
          Chemical formulaK₂Cr₂O₇
          Molar Mass294.18 g/mol
          HS Code2841 50 00
          Quality LevelMQ300
          Applications
          ApplicationPotassium dichromate volumetric standard, secondary reference material for redox titration, traceable to NIST SRM Certipur® Reag. USP. Potassium dichromate CAS No. 7778-50-9, EC Number 231-906-6.
          Biological Information
          Physicochemical Information
          Boiling point>500 °C (1013 hPa)
          Density2.680 g/cm3 (20 °C)
          Melting Point390 °C
          pH value3.5 - 5.0 (29.4 g/l, H₂O, 25 °C)
          Bulk density1250 kg/m3
          Solubility115 g/l
          Dimensions
          Materials Information
          Toxicological Information
          LD 50 oralLD50 Rat 90.5 mg/kg
          LD 50 dermalLD50 Rat 1170 mg/kg
          Safety Information according to GHS
          Hazard Pictogram(s) Hazard Pictogram(s)
          Hazard Pictogram(s)
          Hazard Pictogram(s)
          Hazard Pictogram(s)
          Hazard Pictogram(s)
          Hazard Statement(s)H272: May intensify fire; oxidizer.
          H301: Toxic if swallowed.
          H312: Harmful in contact with skin.
          H314: Causes severe skin burns and eye damage.
          H317: May cause an allergic skin reaction.
          H330: Fatal if inhaled.
          H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
          H335: May cause respiratory irritation.
          H340: May cause genetic defects.
          H350: May cause cancer.
          H360FD: May damage fertility. May damage the unborn child.
          H372: Causes damage to organs through prolonged or repeated exposure if inhaled.
          H410: Very toxic to aquatic life with long lasting effects.
          Precautionary Statement(s)P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
          P260: Do not breathe dust.
          P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
          P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
          P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
          P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
          Signal WordDanger
          RTECSHX7680000
          Storage class5.1B Oxidizing hazardous materials
          WGKWGK 3 highly hazardous to water
          Disposal22
          Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I.
          Safety Information
          Categories of dangercarcinogenic, mutagenic, toxic for reproduction, oxidizing, very toxic, corrosive, sensitizing, dangerous for the environment
          Product Usage Statements
          Storage and Shipping Information
          StorageStore at +15°C to +25°C.
          Packaging Information
          Transport Information
          Declaration (railroad and road) ADR, RIDUN 3086 , 6.1 (5.1), II
          Declaration (transport by air) IATA-DGRUN 3086 , 6.1 (5.1), II
          Declaration (transport by sea) IMDG-CodeUN 3086 , 6.1 (5.1), II
          Supplemental Information
          Specifications
          Global Trade Item Number
          Catalogue Number GTIN
          1024030080 04022536555799
          1024030083 04054839650543

          Related Products & Applications

          Accessories (Primary)

          Catalogue Number Description  
          109147 Sodium thiosulfate solution Show Pricing & Availability

          Accessories (Secondary)

          Catalogue Number Description  
          109864 Ammonium iron(II) sulfate solution Show Pricing & Availability

          Categories

          Analytics and Sample Preparation > Reference Materials > Certipur® Volumetric Standards > for Redox Titration
          Reagents, Chemicals and Labware > Inorganic Reagents > Instrumental Inorganic Analysis > Certipur® Standards, Reference Materials and Buffers > Certipur® Volumetric Standards > for Redox Titration