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SODIUM DIHYDROGEN ORTHOPHOSPHATE ANHYDROUS For HPLC

Sodium phosphate monobasic anhydrous

COAs

Packings

500 g (00500)

1PW1200500
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Article No. 5859B Grade For HPLC
Purity 99% CAS No. 7558-80-7
Molecular Formula NaH2PO4 Molecular Weight 120
H.S. Code 2835.2200 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White crystalline
Odour Odorless pH value 4.1 - 4.5 at 50 g/l at 25 °C
Melting point/ Freezing point [°C] 212°C Boiling point [°C] 399 °C
Density [g/cm3] 2.04 Solubility in water [% weight] Soluble in water

Specifications

Appearance White crystalline powder Assay Min 99%
RP gradient test Corresponds to standard Filter test Corresponds to standard
Solubility (0.1 g/mL in water; 25°C) Complete, colorless pH (10% solution in water; 20°C) 4.0-4.5
Absorption (0.5 M solution in water) at 210 nm Max 0.1
at 260 nm Max 0.06 at 280 nm Max 0.04
at 320 nm Max 0.02 at 500 nm Max 0.02
Revision Date: 06-Apr-2021

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