Caltech India is the leading manufacturer and supplier of CES 16 Potassium Ferricyanide Test Papers. Potassium Ferricyanide Test Papers will detect iron salts that form at the bottom of rust pits on blast-cleaned steel. If these iron salts are present, they rapidly induce corrosion.
The test involves the reaction of soluble ferrous iron salts with potassium ferricyanide to form ferric hexacyanoferrate, which is commonly known as Prussian blue. The relatively high tinting strength of Prussian blue enables the reaction to be used as a very sensitive test on ferrous irons.
Evaluation: Spray a fine mist of deionized water droplets onto a small area of the blast-cleaned surface. Allow the deionized water droplets to evaporate and at the moment that they have disappeared but the surface is just perceptibly wet, apply the CES 16 Potassium Ferricyanide Paper and press onto the surface for few seconds.
If soluble salts remain, these will be drawn by capillary action into the CES 16 Potassium Ferricyanide Paper and will react and give a prussian blue dot effect on the Potassium Ferricyanide Paper corresponding to the contaminated pits on the blast-cleaned steel. The presence of blue spots on the Test Paper indicates that the surface should be re-blasted.
It is important that the wetting of the surface has to be completed to the correct degree in order to dissolve the salts. Too little deionized water and this will not be achieved. Too much deionized water and there will be an overall blue colouration over the CES 16 Potassium Ferricyanide Paper.
Specification: Paper Diameter: 90mm
Storage: Do not expose the Potassium Ferricyanide Papers to any extremes of temperature and ensure that they are retained in the pack.
Shelf Life: We would recommend that the Potassium Ferricyanide Papers are used within a 6-month period from date of purchase.
Supply: Supplied in packs of 50.
Ordering Information:
CES 16 – Potassium Ferricyanide Test Papers (50 Nos / Pkt)
In India, we have various customers from Mumbai, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Bhopal, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Madurai, Nashik, Srinagar, Aurangabad, Dhanbad, Allahabad and Ranchi in India.
