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101961 Potassium tetraoxalate dihydrate

101961
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Overview

Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaMolar Mass
6100-20-5 204-874-6 C₄H₃KO₈ * 2 H₂O 254.20 g/mol

Pricing & Availability

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1019610025
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      Glass bottle 25 g
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      Description
      Catalogue Number101961
      SynonymsPotassium hydrogen oxalate-oxalic acid-water (1/1/2)
      References
      Product Information
      CAS number6100-20-5
      EC index number607-007-00-3
      EC number204-874-6
      Hill FormulaC₄H₃KO₈ * 2 H₂O
      Molar Mass254.20 g/mol
      HS Code2917 11 00
      Quality LevelMQ100
      Applications
      ApplicationPotassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB pH (S) = 1.67₉ (25°C) Certipur®. pH 1.7 (12.6 g/l, H₂O, 25 °C).
      Biological Information
      Physicochemical Information
      Density1.84 g/cm3 (20 °C)
      pH value1.7 (12.6 g/l, H₂O, 25 °C)
      Bulk density860 kg/m3
      Solubility25 g/l
      Dimensions
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Hazard Pictogram(s) Hazard Pictogram(s)
      Hazard Statement(s)H302 + H312: Harmful if swallowed or in contact with skin.
      Precautionary Statement(s)P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
      Signal WordWarning
      Storage class10 - 13 Other liquids and solids
      WGKWGK 1 slightly hazardous to water
      Disposal3
      Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
      Safety Information
      Hazard Symbols Hazard SymbolsHarmful
      Categories of dangerharmful
      R PhraseR 21/22
      Harmful in contact with skin and if swallowed.
      S PhraseS 24/25
      Avoid contact with skin and eyes.
      Product Usage Statements
      Storage and Shipping Information
      StorageStore at +15°C to +25°C.
      Packaging Information
      Transport Information
      Declaration (railroad and road) ADR, RIDKein Gefahrgut
      Declaration (transport by air) IATA-DGRNo Dangerous Good
      Declaration (transport by sea) IMDG-CodeNo Dangerous Good
      Supplemental Information
      Specifications
      pH-value (25 °C)1.674 - 1.683

      Documentation

      Potassium tetraoxalate dihydrate SDS

      Title

      Safety Data Sheet (SDS) 

      Potassium tetraoxalate dihydrate Certificates of Analysis

      Product Number PackagingSpecificationLot Number
      1019610025 Glass bottlePDF Specification Document

      Certificates

      Title
      Certificate ISO 17025 accreditation (English)
      Certificate ISO 17025 accreditation - annex
      DAKKS - Accreditation ISO Guide 34 - Production of conductivity standard solutions, element standard solutions, pH-reference solids, pH-reference solutions, water standards and titirimetric standards

      Brochure

      Title
      Certipur reference materials EMD

      Technical Info

      Title
      Certification Report - Certified Reference Material - Certipur® Secondary buffer substances (MilliporeSigma)

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      Categories

      Analytics and Sample Preparation > Reference Materials > Certipur® Reference Material for Reliable Calibration in pH Measurement
      Reagents, Chemicals and Labware > Inorganic Reagents > Instrumental Inorganic Analysis > Certipur® Standards, Reference Materials and Buffers > Certipur® Reference Material for Reliable Calibration in pH Measurement > Certified Secondary Reference Buffer Solutions and Substances
      Analytics and Sample Preparation > Reference Materials > Certipur® Reference Material for Reliable Calibration in pH Measurement > Certified Secondary Reference Buffer Solutions and Substances