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1.05125 Supelco

Potassium thiocyanate

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

Synonym: Potassium sulfocyanide, Potassium thiocyanate

  • CAS Number 333-20-0

  • Empirical Formula (Hill Notation) CKNS

  • Molecular Weight 97.18

  •  MDL number MFCD00011413

  •  EC Index Number 206-370-1

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Properties

Quality Level   300
grade   ACS reagent
Agency/Method   reag. ISO
  reag. Ph. Eur.
vapor pressure   <0.001 hPa ( 20 °C)
assay   ≥99.0% (silver nitrate titration)
form   crystalline
potency   854 mg/kg LD50, oral (Rat)
pH   5.3-8.5 (20 °C, 50 g/L in H2O)
bp   >400 °C/1013 hPa (decomposition)
mp   177 °C
density   1.91 g/cm3 at 20 °C
bulk density   750‑1000 kg/m3
anion traces   chloride (Cl-): ≤0.005%
  sulfate (SO42-): ≤0.002%
  sulfide (S2-): ≤0.001%
cation traces   Cu: ≤ 0.0002%
  Fe: ≤ 0.0001%
  NH4+: ≤ 0.002%
  Na: ≤ 0.005%
  Pb: ≤ 0.0002%
  heavy metals (as Pb): ≤ 0.0005%
InChI   1S/CHNS.K/c2-1-3;/h3H;/q;+1/p-1
InChI key   ZNNZYHKDIALBAK-UHFFFAOYSA-M
storage conditions   Store at +5°C to +30°C.

Description

Linkage

Replaces: PX1630; PX1630-20; PX1630-1

Analysis Note

Assay (argentometric): ≥ 99.0 %
Insoluble matter: ≤ 0.003 %
pH-value (5 %; water, 25 °C): 5.3 - 8.5
Chloride (Cl): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.002 %
Sulphide (S): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0001 %
Na (Sodium): ≤ 0.005 %
NH₄ (Ammonium): ≤ 0.002 %
Pb (Lead): ≤ 0.0002 %
Iodine consuming substances: ≤ 0.025 %
Corresponds to ACS,ISO,Reag. Ph Eur

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