Re: [meteorite-list] AD:Not a happy 'Campo'

[Pekka Savolainen]

So using 96% Ethanol is much safer and much more fun...
worth to pay the taxes...;-

sorry, just some finnish "weekend thoughts"...

pekka s


Rosemary Hackney wrote:

Usually Methanol is an impurity. It is poisonous if taken internally.

 

Rosie

----- Original Message -----

From: Matson, Robert

To: 'Howard Wu' ; mark ford ; Bob C. ; [EMAIL PROTECTED]

Sent: Friday, March 12, 2004 12:57 PM

Subject: [meteorite-list] AD:Not a happy 'Campo'

Hi Howard, et. al.,

 

> Most Pure ethanol still has 4% water. Why not use 99% isopropanol, 

> for the money probably the best buy. 

 

I think denatured alcohol is higher than 96% ethyl alcohol; however, the

impurities put in to make it undrinkable (and thus comparatively cheap

since it isn't taxed like liquor) remind me that I should look into what

those impurities ARE.  Could be that when denatured alcohol evaporates,

it leaves behind the sticky residue of whatever those impurities happen

to be, and that might not be so good for meteorites.

 

I'd be surprised if isopropanol was any cheaper per gallon than denatured

alcohol -- always seems pretty expensive at the drugstore.  And if you're

using either ethanol or isopropanol as a soaking solution with sodium

hydroxide, you're going to have to add water anyway -- I don't think

NaOH is very soluble in either one.

 

--Rob

 

-- 




Pekka Savolainen
Jokiharjuntie 4
FIN-71330 Rasala
FINLAND

+ 358 400 818 912

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