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1.04905 Supelco

Potassium bromide

for analysis (max. 0,000001% Hg) EMSURE® ACS,Reag. Ph Eur

Synonym: Hydrobromic Acid Potassium Salt, Potassium bromide

  • CAS Number 7758-02-3

  • Empirical Formula (Hill Notation) BrK

  • Molecular Weight 119.00

  •  MDL number MFCD00011358

  •  EC Index Number 231-830-3

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Properties

Quality Level   300
grade   ACS reagent
Agency/Method   reag. Ph. Eur.
vapor pressure   1.3 hPa ( 795 °C)
assay   ≥99.5% (silver nitrate titration)
  99.5-100.5% dry basis (silver nitrate titration)
form   solid
potency   >2000 mg/kg LD50, oral (Rat)
pH   5.5-8.5 (20 °C, 50 g/L in H2O)
bp   1435 °C/1013 hPa
mp   730 °C
solubility   650 g/L
density   2.75 g/cm3 at 20 °C
bulk density   900‑1000 kg/m3
anion traces   bromate (BrO3-): ≤0.001%
  bromate (BrO3-): passes test
  chloride (Cl-): ≤0.1%
  iodate (IO3-): ≤0.001%
  iodide (I-): ≤0.001%passes test
  sulfate (SO42-): ≤0.005%
cation traces   Ba: ≤ 0.002%
  Ca: ≤ 0.001%
  Fe: ≤ 0.0005%
  Hg: ≤ 0.000001%
  Mg: ≤ 0.001%
  Mg: ≤0.02% (alkaline-earth metals (as Ca))
  Na: ≤ 0.02%
  heavy metals (as Pb): ≤ 0.0005%
InChI   1S/BrH.K/h1H;/q;+1/p-1
InChI key   IOLCXVTUBQKXJR-UHFFFAOYSA-M
storage conditions   Store at +5°C to +30°C.

Description

Linkage

Replaces: PX1380; PX1380-1

Analysis Note

Assay (argentometric): ≥ 99.5 %
Assay (argentometric; calculated on dried substance): 99.5 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
Acidity or alkalinity: passes test
pH-value (5 %; water): 5.0 - 8.0
Bromate(BrO₃): passes test
Bromate (BrO₃): ≤ 0.001 %
Chloride (Cl): ≤ 0.1 %
Iodate: ≤ 0.001 %
Iodide (I):
passes test
: ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Ba (Barium): ≤ 0.002 %
Ca (Calcium): ≤ 0.001 %
Fe (Iron): ≤ 0.0005 %
Hg (Mercury): ≤ 0.000001 %
Mg (Magnesium): ≤ 0.001 %
Na (Sodium): ≤ 0.02 %
Magnesium and alkaline-earth metals (as Ca): ≤ 0.02 %
Loss on Drying (105°C): ≤ 0.5 %

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

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