Topic: confirmation for genuine 'VASART' signature.

[chopin-liszt]

I've never used hydrofluoric acid.
I used to make the one which is sulphuric and nitric acids mixed together. (can't remember the name of it now - orange stuff - I want to call it "royal jelly" - think it had some sort of regal name!).
I made it very carefully, in a fume cupboard, wearing the appropriate protective gear.
(sue, ex-pharmacological research worker)

I'm not going to try throwing matchsticks into any concentrated acids just to find out!

[Paul S.]

all I ever remember from the science lab was the edict that was writ in very big letters  -  'Always acid to water - NEVER water to acid'.   I have been preoccupied over the past 48 hours, and maybe for the next 24, so haven't got around to taking Anne up on her instructions of how to place my fake signature on the 'Fakes' section.    I do of course thank those contributors to my post, and appreciate their replies, and when I have sorted the bank holidays finds, fulfilled all my other obligations in life, 'I will return'.
Paul - frustrated ex thicky - sometime hopeful in life - most time still trying to understand the question)  

[ahremck]

Wow, Sue that mixture I have heard is mainly used to dissolve gold - are you an alchemist in training?

Ross

[chopin-liszt]

 

Obviously not. I got the recipe wrong! It was aqua regia, Nitric and Hydrochloric acids, not Nitric and Sulphuric.

Used for ultra-clean cleaning of glassware used in analysis of minute traces of drugs which required spectrophotofluorimetry.
My remit is biochemistry - keep the physical stuff away from me - I don't get it at all.

[ahremck]

No Sue I got it wrong         http://en.wikipedia.org/wiki/Aqua_regia
tells me we are talking about the same substance.  It can both dissolve gold & platinum and is used to clean glasswear.

Ross

[chopin-liszt]

We were talking about the same stuff, but it was me who got the recipe wrong - you just realised what I meant and overlooked my mistake.
It was a long time ago!

[Paul S.]

Anne - may I ask please that you assist on this occasion  -  I am rather short of hours in the day just now, and don't want to overlook or forget this matter.     Sincere thanks for your help.   Paul S.

[Anne]

Done for you Paul. :thup:

[Frank]

Glass looks non-British too.