Copper Sulfate LR for passivation test
Laboratory Grade Copper Sulphate Liquid
Detect the presence of metallic iron and iron oxide. Chromium and nickel will not be replaced with the Copper sulfate test solution, forming the distinctive copper color on the surface in this 6 minute test.
Key details
| Generic name | Laboratory Grade Copper Sulphate Liquid |
|---|---|
| IMPA code | 38220000 |
| Standard packing | 1.00 Bottle |
| Available pack sizes | 500 ml, 1 Ltr, 5 Ltr, 10 Ltr Laboratory Grade specified packing materials. |
| Supply locations | Copper Sulfate LR for passivation test manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai UAE, Muscat Oman, Kenya Africa. Get the best quality of Copper Sulfate LR for passivation test at a competitive price from us. We have ready stock of Copper Sulfate LR for passivation test in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders. |
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How does copper sulfate test for passivation work?<br />
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ANSWER : <span style="font-size: 14px">Chromium and nickel will not be replaced with the Copper sulfate test solution </span>(which also contains sulfuric acid), only the Fe or other less noble metals. If there is free iron on the surface it will be replaced by the copper, forming the distinctive copper color on the surface in this<span style="color: #f00"><span style="background-color: #ffff00"> 6 minute test</span></span>. Of course, this test should only be used on austenitic stainless steel. Some people use it on other grades, but you can get false failures.</p>
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<em><span style="color: #00ff00"><span style="font-size: 14px">Click here</span></span></em> for <a href="http://rxmarine.com/PassivationLiquid">PASSIVATING LIQUID technical information </a>, <a href="http://rxmarine.com/potassium-ferricyanide">to know Other testing methods for PASSIVATION </a>, <a href="http://rxmarine.com/PassivationMethodversonII">Passivation Method</a></p>
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Spray the surface with a solution of copper sulfate in water. If free iron is present, a copper film will form. In this test, the chemical reaction is:<br />
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Fe + CuSO4 = FeSO4 + Cu<br />
The copper film is immediately visible.<br />
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<strong>Copper sulphate test:</strong> a galvanic type test in which the more noble copper plays upon less noble iron particles but not on SS. Patches of copper sulphate shows a poorly passivated surface. Passivated parts are immersed in a Copper Sulfate solution for five minutes, rinsed and visually examined. Any copper (pink) color indicates the presence of free iron and the test is considered unacceptable.</div>
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<strong>Ferroxyl test:</strong> causes coloured iron compounds to appear as specks.</p>
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