Marble S Reagent

Swab etch to reveal general microstructure.

Marble s reagent.

Marble s reagent is a solution of copper sulphate cuso4 and hydrochloric acid hcl dissolved in water. The etchant will darken austenitic grains attack sigma phases and show grain flow. Marble s reagent 50ml hcl 25ml saturated aequous solution of copper ii sulphate. It forms a green solution with a pungent acidic odour and a ph below 1.

Immerse or swab for 5 60 seconds. Made to order and custom items ship in as little as 7 to 10 days. A standard mixture contains 4g cuso4 and 20ml hcl added to 20ml water. This product is made with reagent grade chemicals.

If the product is soluble in water dilute the spillage with water and mop it up. Acid ferric chloride 10 g ferric chloride 30 ml hcl 120 ml water. Pre mix koh and water before adding k3fe cn 6. Please note that scratch marks from sample preparation will also become apparent.

Add a few drops of h2so4 to increase activity. Also called marble s etch this metallographic etchant is for etching 300 series austenitic stainless steels nickel and cobalt based superalloys. 100cc ethyl alcohol astm contains 1 gr picric 11 aqua regia in alcohol. For etching ni ni cu and ni fe alloys and superalloys.

Marbles reagent procedure. Cuso4 hydrochloric acid water. Marble s reagent page 5 section 7. We have the formula but we do not know if the parts are dipped and if so for how long or if you apply current forward or reverse.

Marbles reagent methods for cleaning up wear protective clothing as described in section 8 of this safety data sheet. Clear up spills immediately and dispose of waste safely. Do not wash out container and use it for other purposes. Protect from physical damage.

In stock items ship in 2 to 3 business days or less. Keep out of direct sunlight and away from heat water and incompatible materials. The etchant will darken austenitic grains attack sigma phases and show grain flow. Approach the spillage from upwind.

When diluting the acid. 10 grams 10 grams 100 ml. David crocker valencia california. 100cc hcl 3cc hno 3 immersion.

Please note that scratch marks from sample preparation will also become. 9 marble s reagent 4g cuso 4 20cc hcl 20cc h 2o immersion or swab astm e 407 designation is 25 marble s 10 viella s 5cc hcl 2gr picric acid immersion or swab astm e 407 designation is 80 vilella s. 10 grams 50 ml 50 ml. I would like to know if there is a procedure for etching steel with a marbles reagent.

Used for revealing general structure. Uses of marble s reagent. Kallings solution 2 g cupric chloride 40 80ml methanol 40ml water 40ml hydrochloric acid.