Removing yellowing from Amigas with peroxide - Page 7

Merlin · 19 July 2008, 23:28

I need to source a larger test tank before I start more trials, I also need another couple of litres of 35% H2O2 from work, it's lucky that we have it in one tonne IBCs then....

@ rkauer

TAED can be made from Ethylene Diamine, Acetic Acid and Acetic Anhydride, I know I can lay hands on two of the three materials at work, a quick spin in the lab in a glass reactor at about 210 celsius under nitrogen and I should have TAED. You make DAED first with the acetic acid and ethylene diamine, then acetylate it again with the anhydride.

Kewl.....

rkauer · 19 July 2008, 23:48

Eheh, better we stop talking about chemistry.

People can think we are cursing someone...

BTW: Ethylene Diamine most "famous" son is Dietolamine (EDTA... yeah, that shampoo thing). In plastic industry it is used as mold-release agent, plasticizers and plastic modificator (in conbination with other chemicals).

laser · 20 July 2008, 00:05

btw, I forget to say that

my C64 says: made in hong kong=almost white
the datassette says: made in taiwan= a bit yellowed
and the PSU says: made in sinagapore= ultra yellowed

so..don't purchase plastics made in Singapore

rkauer · 20 July 2008, 07:47

Quote:

Originally Posted by laser

btw, I forget to say that

my C64 says: made in hong kong=almost white
the datassette says: made in taiwan= a bit yellowed
and the PSU says: made in sinagapore= ultra yellowed

so..don't purchase plastics made in Singapore

From those people who puts SMD chips on boards with their thumbs?

zipper · 20 July 2008, 12:02

Quote:

Originally Posted by rkauer

Eheh, better we stop talking about chemistry.

BTW: Ethylene Diamine most "famous" son is Dietolamine (EDTA... yeah, that shampoo thing). .

In dentistry it's used in root canal instrumentation...

Merlin · 20 July 2008, 15:53

Do you mean EDTA (Ethylene Diamine Tetra Acetic Acid)? This is probably the most famous derivative, it's used in water softening, detergents (including shampoos) and chelation of metals.

zipper · 20 July 2008, 18:46

Yeah, and nitrilotriacetic acid (NTA) as well.

Merlin · 20 July 2008, 18:51

Blimey, I used Trilom NTA for years in industrial cleaner formulations, small world, eh?

BTW, I reckon I can make a gel version of H2O2 with Hydroxy Ethyl Cellulose (Cellosize) or a latex thickener (Viscalex). If I can get the chance I'll try it next week, things are very busy at work right now though.

Merlin · 25 July 2008, 20:35

Guess who's blagged some samples of TAED from the UK's largest manufacturer today......??

I'm sure I can spare some once I have the samples, which should arrive early next week. If you want a sample for scientific purposes, let me know, although I don't want 100s of little packets of white powder being posted from my house, if you follow me.......

Zetr0 · 26 July 2008, 00:48

@Merlicious

I'd love a packet of your whiter than white Anthrax my friend

thats if you get some spare

Merlin · 29 July 2008, 11:05

OK, the samples arrived this morning....

I now have 1 kilo of TAED to play with... muahahahaha....

The material safety data sheet (always RTFM!

) states that TAED is soluble up to 1.5 grammes per litre, therefore you won't need much at all per batch of peroxide mixture, adding more is just a waste.

Remember, I have sourced the neat material, not the Oxy version, which is cut with detergents, surfactants and UV fluorescents, this is the real deal.

I have some going out to Zetr0 and Kin Hell, if anyone else wants some, PM me some deets and I will arrange some for you.

Zetr0 · 29 July 2008, 11:39

LOL

Merlcious.... the distributer or packets of white powder!!!!

you would prolly get away with untill they realise its comming from Manchester my friend LOL

spiff · 29 July 2008, 21:34

You have to believe me, I'm telling the truth!!! I only wanted the highly toxic and possible explosive compound to clean my old Amiga.

Merlin · 29 July 2008, 21:39

@ spliff

TAED is more or less harmless according to the MSDS sheet, it just has this unusual property of catalysing peroxide reactions, honestly, officer........

Magno Boots · 29 July 2008, 21:49

BREAKING NEWS!

My A1200 has had the peroxide / oxy / bleach / UV treatment for two weeks with the following results..

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Nice

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Grey keys are overcooked. Don't be fooled by the keys still appearing slightly darker in the jar as they whiten whilst drying.

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Comparison shot

But look at this...

Discoloured mouse soaked in strong solution of bleach and oxy only (no peroxide) for two hours on Sunday evening and left dry all day yesterday in direct sunlight.

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I couldn't believe it

gklinger · 29 July 2008, 22:04

The results are truly impressive. One thing that has me wondering though is the darker keys on the keyboard. Earlier this year I opened up a new Amiga 1200 that had been sealed in plastic and in a box and I would describe the darker keys as being a shade of brown whereas the treated keys seems more grey. Is that just the lighting in the photos or are they really grey like that? I think they look really smart in that grey colour...

Magno Boots · 29 July 2008, 22:10

@gklinger

The keys were originally dirty brown but I obviously left them for too long as they've turned light grey. They do look nice though.

I should point out that the top case has been painted and the comparison shot was to show that the keys were the same colour as the bottom half of the case.

Zetr0 · 29 July 2008, 23:03

!!!!!OMG, thats so Awesome it showing all the dirt on my monitor!!!!!

Well done magno!

Yoto · 30 July 2008, 12:03

@ MB

Zero Yellow! Well done mate!!!

Merlin · 30 July 2008, 23:30

Word is spreading, I am getting PM messages over at a.org from the Chicago Amiga Group about the process.. this is way cool..

20 July 2008, 18:51	#128
Merlin AmiBay MegaMod Join Date: Mar 2007 Location: Manchester, UK Age: 62 Posts: 1,163	Blimey, I used Trilom NTA for years in industrial cleaner formulations, small world, eh? BTW, I reckon I can make a gel version of H2O2 with Hydroxy Ethyl Cellulose (Cellosize) or a latex thickener (Viscalex). If I can get the chance I'll try it next week, things are very busy at work right now though. Last edited by Merlin; 25 July 2008 at 20:31.

29 July 2008, 21:49	#135
Magno Boots Zone Friend Join Date: Feb 2006 Location: Hertfordshire Posts: 688	BREAKING NEWS! My A1200 has had the peroxide / oxy / bleach / UV treatment for two weeks with the following results.. Nice Grey keys are overcooked. Don't be fooled by the keys still appearing slightly darker in the jar as they whiten whilst drying. Comparison shot But look at this... Discoloured mouse soaked in strong solution of bleach and oxy only (no peroxide) for two hours on Sunday evening and left dry all day yesterday in direct sunlight. I couldn't believe it Last edited by Magno Boots; 23 January 2009 at 20:54.

30 July 2008, 23:30	#140
Merlin AmiBay MegaMod Join Date: Mar 2007 Location: Manchester, UK Age: 62 Posts: 1,163	Word is spreading, I am getting PM messages over at a.org from the Chicago Amiga Group about the process.. this is way cool.. Last edited by Merlin; 06 August 2008 at 20:58.

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19 July 2008, 23:28	#121
Merlin AmiBay MegaMod Join Date: Mar 2007 Location: Manchester, UK Age: 62 Posts: 1,163	I need to source a larger test tank before I start more trials, I also need another couple of litres of 35% H2O2 from work, it's lucky that we have it in one tonne IBCs then.... @ rkauer TAED can be made from Ethylene Diamine, Acetic Acid and Acetic Anhydride, I know I can lay hands on two of the three materials at work, a quick spin in the lab in a glass reactor at about 210 celsius under nitrogen and I should have TAED. You make DAED first with the acetic acid and ethylene diamine, then acetylate it again with the anhydride. Kewl.....

19 July 2008, 23:48	#122
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	Eheh, better we stop talking about chemistry. People can think we are cursing someone... BTW: Ethylene Diamine most "famous" son is Dietolamine (EDTA... yeah, that shampoo thing). In plastic industry it is used as mold-release agent, plasticizers and plastic modificator (in conbination with other chemicals).

20 July 2008, 00:05	#123
laser Banned Join Date: Aug 2006 Location: Argentina Age: 51 Posts: 648	btw, I forget to say that my C64 says: made in hong kong=almost white the datassette says: made in taiwan= a bit yellowed and the PSU says: made in sinagapore= ultra yellowed so..don't purchase plastics made in Singapore

20 July 2008, 15:53	#126
Merlin AmiBay MegaMod Join Date: Mar 2007 Location: Manchester, UK Age: 62 Posts: 1,163	Do you mean EDTA (Ethylene Diamine Tetra Acetic Acid)? This is probably the most famous derivative, it's used in water softening, detergents (including shampoos) and chelation of metals.

20 July 2008, 18:46	#127
zipper Registered User Join Date: Mar 2004 Location: finland Posts: 1,839	Yeah, and nitrilotriacetic acid (NTA) as well.

25 July 2008, 20:35	#129
Merlin AmiBay MegaMod Join Date: Mar 2007 Location: Manchester, UK Age: 62 Posts: 1,163	Guess who's blagged some samples of TAED from the UK's largest manufacturer today......?? I'm sure I can spare some once I have the samples, which should arrive early next week. If you want a sample for scientific purposes, let me know, although I don't want 100s of little packets of white powder being posted from my house, if you follow me.......

26 July 2008, 00:48	#130
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	@Merlicious I'd love a packet of your whiter than white Anthrax my friend thats if you get some spare

29 July 2008, 11:05	#131
Merlin AmiBay MegaMod Join Date: Mar 2007 Location: Manchester, UK Age: 62 Posts: 1,163	OK, the samples arrived this morning.... I now have 1 kilo of TAED to play with... muahahahaha.... The material safety data sheet (always RTFM! ) states that TAED is soluble up to 1.5 grammes per litre, therefore you won't need much at all per batch of peroxide mixture, adding more is just a waste. Remember, I have sourced the neat material, not the Oxy version, which is cut with detergents, surfactants and UV fluorescents, this is the real deal. I have some going out to Zetr0 and Kin Hell, if anyone else wants some, PM me some deets and I will arrange some for you.

29 July 2008, 11:39	#132
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	LOL Merlcious.... the distributer or packets of white powder!!!! you would prolly get away with untill they realise its comming from Manchester my friend LOL

29 July 2008, 21:34	#133
spiff Oh noes! Join Date: Mar 2003 Location: Neverland Posts: 766	You have to believe me, I'm telling the truth!!! I only wanted the highly toxic and possible explosive compound to clean my old Amiga.

29 July 2008, 21:39	#134
Merlin AmiBay MegaMod Join Date: Mar 2007 Location: Manchester, UK Age: 62 Posts: 1,163	@ spliff TAED is more or less harmless according to the MSDS sheet, it just has this unusual property of catalysing peroxide reactions, honestly, officer........

29 July 2008, 22:04	#136
gklinger Vegetable Lasagna Join Date: Mar 2007 Location: Toronto, CANADA Age: 54 Posts: 711	The results are truly impressive. One thing that has me wondering though is the darker keys on the keyboard. Earlier this year I opened up a new Amiga 1200 that had been sealed in plastic and in a box and I would describe the darker keys as being a shade of brown whereas the treated keys seems more grey. Is that just the lighting in the photos or are they really grey like that? I think they look really smart in that grey colour...

29 July 2008, 22:10	#137
Magno Boots Zone Friend Join Date: Feb 2006 Location: Hertfordshire Posts: 688	@gklinger The keys were originally dirty brown but I obviously left them for too long as they've turned light grey. They do look nice though. I should point out that the top case has been painted and the comparison shot was to show that the keys were the same colour as the bottom half of the case.

29 July 2008, 23:03	#138
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	!!!!!OMG, thats so Awesome it showing all the dirt on my monitor!!!!! Well done magno!

30 July 2008, 12:03	#139
Yoto 1 Potato to Spam´em all! Join Date: May 2008 Location: Lost in a Wine Country Age: 48 Posts: 572	@ MB Zero Yellow! Well done mate!!!

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