Marble's Reagent, 500mL

Marble's Reagent (Marble's Etch), 500mL

$59.00 $55.52
(You save $3.48)
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14 days
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Ricca Chemicals: Marble's Reagent. Also called Marble's Etch, this metallographic etchant is for etching 300 series austenitic stainless steels, nickel, and cobalt-based superalloys. The etchant will darken austenitic grains, attack sigma phases, and show grain flow. Please note that scratch marks from sample preparation will also become apparent.

User Instructions:

  • To etch a corrosion resistant alloy, the metal surface has to be etched as soon it's polished, cleaned and dried without any delay. Otherwise, the metal surface will passivate.
  • Immerse or swab the polished surface few seconds to a minute.


  • Manufacturer Part Number: R4621400-500A
  • Grade: ACS grade
  • CAS#: 7732-18-5,7647-01-0,7758-99-8
  • Size: 500 mL Natural Poly bottle
  • Boiling Point: Approximately 100°C
  • Appearance: Green liquid
  • Physical State: liquid
  • Shelf Life (months): 24

Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.

Most chemicals cannot be expedited.

This item has a Haz-Mat shipping fee built into the price. Fee is applicable only to the first item purchased. Additional HazMat items will be discounted automatically in the shopping cart. HazMat items always require special DOT handling and in rare cases may incur additional fees not levied prior to checkout. Request a quote for the most accurate pricing.

Additional information on Hazardous Material designation:

  • DOT UN Number: UN1789
  • DOT Proper Shipping Name: Hydrochloric Acid Solution
  • DOT Hazard Class: 8

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. Prop 65 Warning

Please note: This product is not returnable.

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