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Merck - 1063422500 - Sodium dihydrogen phosphate dihydrate

  • MFR SKU: 1063422500
  • ITEM #: 7231493
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ITEM #: 7231493
for analysis EMSURE® Reag. Ph Eur
This listing is for 2.5 kg Plastic bottle

Merck - 1063422500 - Sodium dihydrogen phosphate dihydrate

  • Item #: 7231493
  • MFR SKU: 1063422500
  • Catalogue Number 106342
  • Synonyms mono-Sodium orthophosphate, Sodium biphosphate, Sodium phosphate monobasic
  • CAS number 13472-35-0
  • EC number 231-449-2
  • Grade Reag. Ph Eur
  • Hill Formula HNaOP * 2 HO
  • Chemical formula NaHPO * 2 HO
  • Molar Mass 156.00 g/mol
  • HS Code 2835 22 00
  • Quality Level MQ300
  • Density 1.915 g/cm3 (20 ° C)
  • Melting Point 60 ° C
  • pH value 4.0 - 4.5 (50 g/l, HO, 25 ° C)
  • Bulk density 1000 kg/m3
  • Solubility 850 g/l
  • LD 50 oral LD50 Rat 8290 mg/kg
  • LD 50 dermal LD50 Rabbit > 7940 mg/kg
  • RTECS WA1900500
  • Storage class 10 - 13 Other liquids and solids
  • WGK WGK 1 slightly hazardous to water
  • Disposal 14
  • 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).
  • Storage Store at +2° C to +30° C.
  • Identity passes test
  • Appearance of solution passes test
  • Assay (alkalimetric, calculated on dried substance) 99.0 - 100.5 %
  • In water insoluble matter (calculated on dried substance) ≤ 0.15 %
  • pH-value (1%, water) 4.1 - 5.0
  • pH-value (5%; water) 4.2 - 4.5
  • Chloride (Cl) ≤ 0.0005 %
  • Fluoride (F) ≤ 0.001 %
  • Total nitrogen (as N) ≤ 0.001 %
  • Hydrogenphosphate (HPO) ≤ 0.5 %
  • Sulfate (SO) ≤ 0.01 %
  • Heavy metals (as Pb) ≤ 0.0005 %
  • Al, Ca and other elements detectable with ammonia passes test
  • As (Arsenic) ≤ 0.00005 %
  • Ca (Calcium) ≤ 0.005 %
  • Cd (Cadmium) ≤ 0.0001 %
  • Co (Cobalt) ≤ 0.005 %
  • Cu (Copper) ≤ 0.005 %
  • Fe (Iron) ≤ 0.001 %
  • Hg (Mercury) ≤ 0.0001 %
  • K (Potassium) ≤ 0.005 %
  • Mg (Magnesium) ≤ 0.005 %
  • Ni (Nickel) ≤ 0.005 %
  • Pb (Lead) ≤ 0.0004 %
  • Zn (Zinc) ≤ 0.025 %
  • Substances reducing potassium permanganate (as O) passes test
  • Loss on drying (130° C) 21.5 - 24.0 %
  • Corresponds to Reag. Ph. Eur.

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