di-Sodium tetraborate decahydrate, Certipur® certified secondary standard reference material for pH measurement, directly traceable to primary reference material (SRM) from NIST/PTB, Supelco®

Supplier: MilliporeSigma
Danger

Synonyms: Sodium Borate decahydrateSodium tetraborate decahydrateBorax tetra

1.01964.0025 1.01964.0025
CA1.01964.0025CS 17698.96 CAD
CA1.01964.0025 EM1.01964.0025
di-Sodium tetraborate decahydrate, Certipur® certified secondary standard reference material for pH measurement, directly traceable to primary reference material (SRM) from NIST/PTB, Supelco®
di-Sodium tetraborate decahydrate
Formula: Na₂B₄O₇·10H₂O
MW: 381.37 g/mol
Boiling Pt: 320 °C (1013 hPa)
Melting Pt: 75 °C
Density: 1.73 g/cm³ (20 °C)
MDL Number: MFCD00149193
CAS Number: 1303-96-4
Merck Index: 13,08662

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Specification Test Results

Solubility 51.4 g/l (20 °C)
Melting Point 75 °C Elimination of water of crystallisation
Molar Mass 381.32 g/mol
Bulk Density 750 kg/m3
Vapor Pressure 0.213 hPa (20 °C)
Density 1.72 g/cm3 (20 °C)
pH 9.2 (47 g/l, H2O, 20 °C)

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