Product code RXSOL-62-6126-050Category Test Kit For Water

Price and availability on request. Send us the quantity and delivery location in Oman.

Overview

Potassium Thiocyanate solution also used to determine Chloride, Bromide and Iodide in presence of Silver Nitrate with Potassium Thiocyanate titrant using a Ferric Alum Indicator.

Product description

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. 

Applications

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.

Also known as

KSCN

Notes

Potassium Thiocyanate

Potassium Thiocyanate
Chemical Formula KSCN
Formula Weight 97.18
Equivalent Weight 97.18 (Molar = Normal)
CAS No. 333-20-0
 

Where we supply

Oman. Stocked at our warehouse in Barka, South Al Batinah, and supplied to Muscat, Ruwi, Mutrah, Seeb, Rusayl, Barka, Sohar, Shinas, Saham, Buraimi, Nizwa, Ibri, Sur, Salalah, Duqm, Khasab and every other governorate.

Ports and free zones. Port Sultan Qaboos (Mutrah), Mina Al Fahal, Sohar Port and Freezone, Port of Salalah and Salalah Free Zone, Port of Duqm and the Duqm Special Economic Zone, Port of Sur, Khasab Port and Al Mazunah Free Zone.

Industrial areas. Rusayl, Sohar, Barka (Sanaya), Raysut (Salalah), Nizwa, Sur, Buraimi and Duqm industrial estates, Knowledge Oasis Muscat, and oil and gas sites across Oman.

Beyond Oman. We have branches in the UAE (including Fujairah) and in India (Kandla, Kolkata, Visakhapatnam, Chennai and Mumbai), and we also supply to South Africa.