Potassium Thiocyanate

RXSOL
Test Kit For Water

Potassium Thiocyanate

SKU: RXSOL-62-6126-050

Potassium Thiocyanate solution can be used in titrations involving Silver Nitrate solutions. Chloride, Bromide and Iodide can be determined indirectly this way by adding excess Silver Nitrate solution to the sample containing the Halide, thus precipitating the Halide, and titrating the excess Silver Nitrate with Potassium Thiocyanate titrant using a Ferric Alum Indicator. 

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Application

The reactions for this Volhard titration are:

X- + excess AgNO3 → AgX (precipitate) + AgNO3
X = Cl, Br, I

KSCN + AgNO3 → AgSCN (white precipitate) + KNO3

excess SCN- + Fe3+ → [FeSCN]2+ (red complex at endpoint)

Dosage

Potassium Thiocyanate solution can also be used to standardize Mercuric Nitrate solutions using Ferric Alum as the indicator:

2 KSCN + Hg(NO3)2 → Hg(SCN)2 (white precipitate) + 2 KNO3

excess SCN- + Fe3+ → [FeSCN]2+ (red complex at endpoint)

Ammonium Thiocyanate and Potassium Thiocyanate solutions can be used interchangeably in these determinations.

About

RXSOL — Uganda Chemical is the East African supply arm of RX Marine International (RXSOL), supplying industrial chemicals and solvents since 1996. We deliver bulk solvents, degreasers, acids and alkalis, glycols, water-treatment chemicals, and laboratory reagents to customers across Uganda and the wider East African region.

Contact info

Industrial chemicals & solvents supplier since 1996.

mail@ugandachemical.com
+91 80699 76670

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