grade
for luminescence
product line
BioUltra
assay
≥99.0% (calc. on dry substance, T)
form
solid
total impurities
insoluble matter, passes filter test
≤0.005% KMnO4-reducing substances
≤2% water
ign. residue
≤0.01% (as SO4)
pH
6.5-7.5 (25 °C, 1 M in H2O)
mp
110-112 °C (dec.)(lit.)
solubility
H2O: 1 M at 20 °C, clear, colorless
anion traces
chloride (Cl-): ≤5 mg/kg
nitrate (NO3-): ≤10 mg/kg
sulfate (SO42-): ≤10 mg/kg
cation traces
Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤2 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg
λ
1 M in H2O
UV absorption
λ: 260 nm Amax: 0.015
λ: 280 nm Amax: 0.010
suitability
in accordance for luminescence test
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