Features:
1. change all the shortcomings of ferric chloride, the corrosion rate is very fast.
2. It is blue and clear etching solution, no more dirty phenomenon.
3. etching process is clearly visible.
4. by 1:7 exchange water, can corrode 10 * 15cm single-sided PCB, about 10-15 pcs.
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But in the Chinese market, most technology students use it for class experiments.
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I will verify that the correct name. And then released.
It's ammonium persulphate, priced at HK$20 (about 3 usd) per pack.
Slower than ferric chloride, and have quite serious side-etching.
I think it is not so appropriate if you want to have SMD components on your board :)
can the hexahydrate version be made from this or what is it?
thanks,
emihackr97.
BTW 5 stars!
I tried to contact the factory. They can not provide a true chemical name.
At present, China and Taiwan are described as "Blue etching agent" or "Ír°ÝU;‘"
Zhege dongxi yong zhongwen zenme shuo?
Ni gei wo pinyin jiu haole.
Wo youshihou wei wo xuexiao la yixie huo dao nanfei. Tamen zai fazhan zijide etching lab.
Also where can we get it, supplier name.
I don't understand this - too little information. What is the blue stuff?
L
Can't be. No such thing in that color (nearly clear.) Probably sodium or ammonium persuphate.
Thanks, how does it change all the shortcomings of ferric chloride?
Ferrous would be blue, ferric is yellow/brown/orange - yes?
L