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Potassium Chloride
Potassium chloride
About This Item
Linear Formula:
KCl
CAS Number:
7447-40-7
Molecular Weight:
74.55
EC Number:
231-211-8
NACRES:
NA.21
Assay:
99-100.5% (AT)
Form:
powder or crystals
Properties
grade
puriss.
Quality Level
200
Assay
99-100.5% (AT)
form
powder or crystals
quality
meets analytical specification of Ph. Eur., BP, USP, FCC, E508
impurities
acidity or alkalinity, complies
organic volatile impurities, complies (GC)
residual solvents, complies
0.0001% Al
0.0005% heavy metals (as Pb)
0.003% free acid (as HCl)
0.005% free alkali (as KOH)
0.02% Mg, alkaline earth metals (as Ca)
loss
0.5% loss on drying, 105 C, 3 h
pH
7
mp
770 C (lit.)
density
1.98 g/mL at 25 C (lit.)
anion traces
bromide (Br-): 1000 mg/kg
iodide (I-): 50 mg/kg
sulfate (SO42-): 100 mg/kg
cation traces
Al: 1 mg/kg
As: 0.5 mg/kg
Ba:, in accordance
Ca: 50 mg/kg
Cd: 1 mg/kg
Cu: 10 mg/kg
Fe: 10 mg/kg
Hg: 1 mg/kg
Mg: 50 mg/kg
Na: 700 mg/kg
Pb: 5 mg/kg
Zn: 20 mg/kg
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