[alt-photo] Re: "Moistened" AD (4th and final attempt)

[jusdado]

El 07/01/2010 19:12, Tomas Sobota escribió:
> Trevor,
> here is the product reference:
> http://www.scharlau.com/TDS/AM0276_TDS.pdf
> Not sure why they moist the Am. dichromate (0.5% - 3 water) but this is a
> pure reagent for analysis and it will probably be expensive. Are you sure
> that a cheaper, technical grade product, is not enough for your
> (photographic, I assume) purposes?
> Tom Sobota
> Madrid, Spain
>
>
> On Thu, Jan 7, 2010 at 5:09 PM, Trevor Cunningham
> <trevor at chalkjockeys.com>wrote:
>
>    
>> A local chemical distributor sells an ammonium dichromate product in two
>> states:
>>
>> 1) Crystal form from the German company Merck
>>
>> 2) "Moistened Extra Pure 97%" form from Scharlau in Spain
>>
>> Any guesses what the "moistened" product might be? What would the mixing
>> realities be? Any ideas why I'm shootin' blanks? I tried plain text this
>> time.
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>>
>>      
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