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1.01217 Supelco

Ammonium sulfate

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Synonym: Mascagnite

  • CAS Number 7783-20-2

  • Linear Formula (NH4)2SO4

  • Molecular Weight 132.14

  •  MDL number MFCD00003391

  •  EC Index Number 231-984-1

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Properties

Quality Level   300
grade   ACS reagent
Agency/Method   reag. ISO
  reag. Ph. Eur.
vapor pressure   <1 Pa ( 25 °C)
assay   ≥99.5% (alkalimetric)
form   solid
potency   2840 mg/kg LD50, oral (Rat)
pH   5 (100 g/L in H2O)
mp   >280 °C (dec.) (lit.)
solubility   754-764 g/L
density   1.77 g/mL at 25 °C (lit.)
bulk density   850 kg/m3
anion traces   chloride (Cl-): ≤0.0003%
  nitrate (NO3-): ≤0.001%
  phosphate (PO43-): ≤0.0005%
cation traces   Al: ≤ 0.000075%
  As: ≤ 0.00002%
  Ca: ≤ 0.001%
  Cd: ≤ 0.0001%
  Cr: ≤ 0.000075%
  Cu: ≤ 0.0002%
  Fe: ≤ 0.0002%
  Mg: ≤ 0.0005%
  Pb: ≤ 0.0002%
  Zn: ≤ 0.0001%
  heavy metals: ≤ 0.0005%
  heavy metals (as Pb): ≤ 0.0005%
SMILES string   N.N.OS(O)(=O)=O
InChI   1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChI key   BFNBIHQBYMNNAN-UHFFFAOYSA-N
storage conditions   Store at +5°C to +30°C.

Description

Analysis Note

Assay (alkalimetric): ≥ 99.5 %
Insoluble matter: ≤ 0.001 %
pH-value (5 %; water, 25 °C): 5.0 - 6.0
Chloride (Cl): ≤ 0.0003 %
Nitrate (NO₃): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.0005 %
Heavy metals (ACS): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.000075 %
As (Arsenic): ≤ 0.00002 %
Ca (Calcium): ≤ 0.001 %
Cd (Cadmium): ≤ 0.0001 %
Cr (Chromium): ≤ 0.000075 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0002 %
Mg (Magnesium): ≤ 0.0005 %
Pb (Lead): ≤ 0.0002 %
Zn (Zinc): ≤ 0.0001 %
Residue on ignition (as sulfate): ≤ 0.005 %
Loss on Drying (105 °C): ≤ 0.1 %
Corresponds to ACS,ISO,Reag. Ph Eur

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EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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