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...
—
Limited Availability Limited Availability
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

      Documentation

      Required Licenses

      Title
      CARTA DE USO GENERAL 2016
      PRODUCTO REGULADO POR COFEPRIS Y SEMARNAT
      PRODUCTO REGULADO POR OTRAS SECRETARíAS

      Potassium dichromate SDS

      Title

      Safety Data Sheet (SDS) 

      Potassium dichromate Certificates of Analysis

      Product Number PackagingSpecificationLot Number
      1024030080 Glass bottlePDF Specification Document

      Brochure

      Title
      Brochure: Physical & Chemical Property Standards for Analytical Characterization

      Technical Info

      Title
      Certification Report: Certipur® Volumetric Standard

      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