acetic acid

[arthur kierski]

in which refining process is acetic acid used---many companies selling chemicals sell acetic acid to pms refiners----thanks for any reply

 

[Anonymous]

I have seen it used with salt to clean placer gold and in treating black sands to reveil tiny gold partcles stuck to the sand or encapsilated by the sand.

Jim

 

[arthur kierski]

thanks James for your reply

 

[butcher]

vinigar contains 5%-18% acetic acid, a weak acid, attacks Iron, Zink, Magnesium, it also has been mixed 50/50 with nitric acid for nickel. it can also disolve sulfur and iodine.

 

[arthur kierski]

does acetic+nitric dissolve nickel?please butcher,confirm this for me--it is quite important

 

[butcher]

they can use it to etch nickel.

http://books.google.com/books?id=U6RPpeVFmjYC&pg=PA14&lpg=PA14&dq=acetic++and+nitric+acid+50/50+++Nickel&source=web&ots=rHc0zvBxhH&sig=Btv4b1CjIobZC48-JN45J12YSrA&hl=en&sa=X&oi=book_result&resnum=4&ct=result
http://www.freepatentsonline.com/4556449.html

http://books.google.com/books?id=IePhmnbmRWkC&pg=PA134&lpg=PA134&dq=acetic+acid+nitric+acid+nickel&source=bl&ots=kmegMGC8Oy&sig=briPy3dMhytrUxZFHghxKdfAz9k&hl=en&sa=X&oi=book_result&resnum=4&ct
http://www.1911encyclopedia.org/Nickel=result
http://books.google.com/books?id=ioNOAAAAMAAJ&pg=PA474&lpg=PA474&dq=acetic+acid++disolve+Nickel&source=web&ots=qe6mKAeYoY&sig=2GKlh7MTpAxET-L4eGGw7_D2eVA&hl=en&sa=X&oi=book_result&resnum=1&ct=result
https://sciencemadness.org/talk/viewthread.php?fid=5&tid=8316&action=printable

 

[butcher]

dont ask me why or how I dont use it, nitric itself will disolve nickel I believe. not sure why they add acetic?

 

[butcher]

here a lil info on etchants for metals:

Etchants
Acetic acid (H3COOOH)------GaAs; Pb; Ti
Hydrochloric Acid (HCl)-------Al; Cr; Cu; Fe2O3;Ga; GaAs; GaN; In; Fe; Pb; Ni; NiO;
NiO3; Sn; SnO2; Ti; Zn.
HydroFluoric (HF)------------GaAs; Ni; SiO2; Ti.
Nitric acid (HNO3)--------------C; Cu; GaAs; In; Fe; Pb; Ni; Ag; Pd; Pt; Sn; Ti; Zn; ZnO.
Phosphoric Acid (H3PO4)-------Al; Cu; GaAs; GAN; FE;Ni; SiN; ZnO.
Pottassium Hydroxide(JOH)-----Al: C; Cu; Ag: GaAs; Si; Ti.
Sodium Hydroxide (NaOH)-----Al; Cu; Ag; Ti; GaAS; GaN.
Sulfuric acid (H2SO4)----------C; CU; GaAs; Fe; Pb; Ni; Ti.


AQUA-REGIA (4 HCl : 1 HNO3) --------ETCH’S ALL METALS (Platinum group need higher temperature and time)


FeCl3 is commonly used to etch for nickel. Im sure CuCl2 (acid peroxide) just as good.

 

[arthur kierski]

thanks butcher for these informations--they are very useful to me