Millipore Sigma Vibrant Logo

119753 di-Sodium hydrogen phosphate dihydrate

View Pricing & Availability


Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaChemical FormulaMolar Mass
10028-24-7231-448-7HNa₂O₄P * 2 H₂ONa₂HPO₄ * 2 H₂O177.99 g/mol

Pricing & Availability

Catalog Number AvailabilityPackaging Qty/Pack Price Quantity
Retrieving availability...
Limited Availability
Limited Availability
Limited Quantities Available
    Remaining : Will advise
      Remaining : Will advise
      Will advise
      Contact Customer Service
      Contact Customer Service

      Glass bottle 250 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
      Catalogue Number119753
      SynonymsSodium monohydrogen phosphate, Sodium phosphate dibasic
      Descriptiondi-Sodium hydrogen phosphate dihydrate
      Product Information
      CAS number10028-24-7
      EC number231-448-7
      Hill FormulaHNa₂O₄P * 2 H₂O
      Chemical formulaNa₂HPO₄ * 2 H₂O
      Molar Mass177.99 g/mol
      HS Code2835 22 00
      Quality LevelMQ100
      Applicationdi-Sodium hydrogen phosphate dihydrate buffer substance for chromatography LiChropur®. CAS 10028-24-7, chemical formula Na₂HPO₄ * 2 H₂O.
      Biological Information
      Physicochemical Information
      Density2.1 g/cm3 (20 °C)
      Melting Point92.5 °C Elimination of water of crystallisation
      pH value9.0 - 9.4 (50 g/l, H₂O, 20 °C)
      Bulk density850 - 1000 kg/m3
      Solubility93 g/l
      Materials Information
      Toxicological Information
      LD 50 oralLD50 Rat > 2000 mg/kg
      Safety Information according to GHS
      Storage class10 - 13 Other liquids and solids
      WGKWGK 1 slightly hazardous to water
      Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).
      Safety Information
      Product Usage Statements
      Storage and Shipping Information
      StorageStore at +2°C to +30°C.
      Packaging Information
      Transport Information
      Supplemental Information
      Identitypasses test
      pH-value (5 %; water)9.0 - 9.2
      Assay (acidimetric)≥ 99.0 %
      Self-absorption (215 nm; 0.2 mol/l; 1 cm; water)≤ 0.15
      Self-absorption (220 nm; 0.2 mol/l; 1 cm; water)≤ 0.05
      Self-absorption (254 nm; 0.2 mol/l; 1 cm; water)≤ 0.02


      di-Sodium hydrogen phosphate dihydrate SDS


      Safety Data Sheet (SDS) 

      di-Sodium hydrogen phosphate dihydrate Certificates of Analysis

      Product Number PackagingSpecificationLot Number
      1197530250 Glass bottlePDF Specification Document