Ferroxyl Test Kit for free IRON passivation
Passivation Test Kit
During the test formation of blue coloration indicates that the surface of the stainless steel does not yet pickled sufficiently . And if blue coloration does not appear which indicate surface has been satisfactorily pickled.
Key details
| Generic name | Passivation Test Kit |
|---|---|
| Standard packing | 1.00 Box |
| Available pack sizes | Full complete set. Also you can order separately TK F1 and TK F2 |
| Supply locations | Ferroxyl Test Kit for free IRON passivation manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai UAE, Muscat Oman, Kenya Africa. Get the best quality of Ferroxyl Test Kit for free IRON passivation at a competitive price from us. We have ready stock of Ferroxyl Test Kit for free IRON passivation in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders. |
Need this product at your port or plant?
Enquire Now
It consists of two solutions, TK-F1 & TK-F2,
Mix Solution TK-F1 & TK-F2 1:1. ( which contain nitric acid and potassium ferricyanide. The potassium ferricyanide can emit lethal fumes if it is exposed to concentrated acids, or heated to decomposition. The mixed solutions are combined before use as the mixture has an active shelf-life of approximately 24 hours. )
1st option ::: A filter paper is soaked with the mix solution and applied to the surface to be checked. After a reaction time of 30 - 60 seconds, ferrite residues, which are on the surface, will give a blue result if when iron is present.
2nd option ::: Alternatively, this mixture can be sprayed by atomizer spray over the area to be tested , and inhalation of this spray should be avoided.
Important note :
- The tested surface has to be cleaned immediately after with de-ionised water.
- Highly trained personnel should only be permitted to perform this test.
- Residues of pickling products will also show a blue colour.
The Ferroxyl test is designed to determine whether austenitic stainless steel needs to be pickled or whether it has been pickled satisfactorily. When structure on the surface of austenitic stainless steel has not been evenly restored, an excess of metallic iron will be present (so called embedded iron) which will adversely affect the properties of the stainless steel.
The presence of embedded iron in the stainless steel surface disturbs the chromium oxide film reducing the corrosion resistance locally. When embedded iron is not removed serious (pit) corrosion may set in.
Experimental Principle ::: ---
The test is based on a reaction of potassium ferricyandide with iron in a strongly acid medium. The excess iron dissolves in this strongly acid medium as ferrous ion to form a blue complex, known as Prussian Blue.
When during this test this blue coloration manifests itself it means that the surface of the stainless steel does not yet have the correct structure and has been insufficiently picked.
Also refer this link ::: Palladium Chloride Passivation Test Kit ( http://rxmarine.com/passivation-test-kit-0 )
Passivity Test Kit for PASSIVATION ( http://rxmarine.com/Passive-Film-Testing )
Content of Rxsol Ferroxyl Test Kit –
Equipment & Reagent :
- Latex Gloves – 1 Pkt.
- Shoes Cover – 1 Pkt.
- Test Tube 100 ml – 1 Pc.
- Test Tube 25 ml – 1 pc.
- Filter Paper – 1 pkt ( 0/11 (cm)
- Squeeze Bottle – 1 pc ( Transparent dropping bottle 25 ml )
- Reagent TK-F1 – 50 ml x 2 Nos
- Reagent TK-F2 – 50 ml X 2 Nos
- D.I. Water (Lab Grade) – 1 Btl
- Measuring scoop
<p>
The principle of Ferroxyl test kit :</p>
<p>
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Free iron cannot be seen on the surfaces of contaminated parts. Therefore, it must be converted into a visible form. </span><br style="font-family: Arial, Helvetica, sans-serif; font-size: small;" />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Ferroxyl Test Kit helps to Identify transition Iron metal ions to blue colour spot. </span><br style="font-family: Arial, Helvetica, sans-serif; font-size: small;" />
<br style="font-family: Arial, Helvetica, sans-serif; font-size: small;" />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">The transition of Iron metals to form blue coloured compounds with TK F1 and TK F2. </span><br style="font-family: Arial, Helvetica, sans-serif; font-size: small;" />
<br style="font-family: Arial, Helvetica, sans-serif; font-size: small;" />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">colourless solution → <span style="color:#00f;">blue</span> precipitate </span></p>
It is not recommended for use on products destined for use in food, medical or pharmaceutical unless complete removal of the cyanide solution can be guaranteed.
An alternative is our Passivity test kit which will give a red/pink result when in contact with Iron. The chemicals used in the passivity test are not hazardous.
Carbon steel will only contaminate the stainless steel if the passive layer of chromium is destroyed. Very few fabricators have the capability to fabricate in an operating room environment. There are many ways to remove free iron and free iron oxides by using for example, RXSOL-16-1011-025 solution.
A ferroxyl test is a test done only to "detect" contamination. Once contamination is detected, then a removal procedure is carried out.
Related products
Product FAQs
From our blog
Need Ferroxyl Test Kit for free IRON passivation for your operation?
Our team helps with product selection, dosage, safety data and delivery worldwide.
Request a Quote