• Etching Stainless Steel With Ferric Chloride
  • Etching Stainless Steel With Ferric Chloride
  • Etching Stainless Steel With Ferric Chloride
  • Etching Stainless Steel With Ferric Chloride
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Etching Stainless Steel With Ferric Chloride

Brand :3R

Product origin :Tangshan City, Hebei Province, China

Delivery time :15-30 days

Supply capacity :400,000 tons/ year

Ferric chloride (iron III chloride, FeCl3, CAS No. 7705-08-0/ 10025-77-1) is mainly used in treatment of sewage and industrial wastes; etching agent for engraving, photography, and printed circuitry; condensation catalyst in mordant; oxidizing, chlorinating, and condensing agent; disinfectant; pigment; feed additive, etc.


The process we refer to as acid etching is a well-known, ancient and reliable industrial process that uses various commonly available mordant acids and chemical compounds to impart a physical or an aesthetic improvement to the surface of stainless steel. Mordant is the French word for "bitting." and refers to the actual liquids used to etch the metal when applied to the surface.

Acid etching was first used in the middle-ages by goldsmiths and gunmakers to decorate their products before finding a new home in the art world.

Acid etching was and is still used in the reproduction of high-quality works of art. The process was initially used as a method of getting the artist's work into the hands of as many people as possible.

The engraver takes a plate of copper or mild steel. Then the artist will cover the entire surface of the plate with a waxy substance, referred to a 'ground'. This substance is resistant to the acids chosen to be used.

The engraver will then, using a variety of tools, reproduce the original work of art by engraving the image into the waxy ground. The plate will then be submerged in a bath of the mordant, after a prescribed time the plate is removed, rinsed off and the ground removed. The image left will be an exact copy of the engraver's work. This is a very skilled process, it takes time and money to produce works of art this way.

The process of acid etching works equally well on the surface of stainless steel plates, profiles and sheets and other metals such as aluminium and brass are also suitable for acid etching.

The surface left on the surface of the stainless steel is usually matt in nature and will be texturally different from the unetched part of the stainless steel. This means that the process is used to produce a non-slip grip to the surface of the stainless steel, making hand tools safer. It is also used to create decorative patterns, contrasting

The original acid etched part of the surface is an intaglio surface, this means incised. There are various acids commonly available that can be used to etch steel and stainless steel including hydrochloric acid, nitric acid or sulfuric acid. Please be aware that all of these acids require careful handling. These acids can dissolve stainless steel and fingers.

Chemicals that form acid in water, such as ferric (iron) chloride or copper sulfate can also be used as etching chemicals. These chemical compound work faster than acids. The strength of the acid generally determines how quickly the steel will be etched, the stronger the acid, the faster the process. 

  • Ferric chloride is mixed with water in an one to one ratio, and this will form hydrochloric acid in solution.

  • Hydrochloric acid is commonly used to etch copper, and it also works well on stainless steel. It must be handled carefully otherwise surface damage such as pitting can occur to the surface of the stainless steel.


Quick Details
Classification: Chloride
Type: Ferric chloride
CAS No.: 7705-08-0/ 10025-77-1
Other Names: FeCl3, iron iii chloride, iron 3 chloride
MF: FeCl3
EINECS No.: 231-729-4
Place of Origin: Hebei, China
Grade Standard: Industrial Grade, PCB Etching Grade, Drinking Water Grade, Pharmaceutical Grade...
Purity: 35-40%min, around 98%min
Appearance: Dark brown liquid, Yellowish-brown Crystal
Application: waste water, sewage treatment, drinking water treatment, Pharmaceutical Process...
Brand Name: 3R Ferric Chloride
Packaging & Delivery
Packaging Details
50kg/ drum net, 400 drums/ container;
280kg/drum net,80 drums/ container;
1445kg/ IBC net, 18 IBCs/ container.

Xingang, Tianjin, China


Specifications of Ferric Chloride Solution of Industrial Grade

检测方法                 Test Method

GB/T 4482-2018





Reddish brown   liquid

     FeCl3, %             


Fe3+, %


        Fe2+, %               


Insoluble substance, %      


Free Acid, %            


Density (20℃)/ cm3


Zn, ppm                 


As, ppm                  


Pb, ppm                  


Hg, ppm                  


Cd, ppm                  


Cr, ppm                  



 Speicifications of Ferric Chloride Hexahydrate of Industrial Grade


检测方法     Test Method

GB/T 4482-2018





Yellowish-brown Crystal

FCcl36H2O, %


       Fe3+, %                


Fe2+, %


Insoluble   substance, %     


Free Acid, %            


Zn, %                 

≤0.073 8

As, %                 

≤0.001 18

Pb, %                 

≤0.004 43

Hg, %                 

≤0.000 118

Cd, %                 

≤0.002 36

Cr, %                 

≤0.011 8




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