Re: Eau de Javelle ( Javel )
John,
Interesting that the Englishman would literally say in the article, "Why in
English do many ignorantly write Javelle?" Maybe in those days it was
routine to not use the French town's name as it stands?
You wondered why there weren't more Arvel prints around....heheheheh do you
think the bleach made them disintegrate?
My question is this: what percentage is Chlorox Bleach or common household
bleach today, so if we wanted to make a current day Javelle water by adding
a bit of sodium carbonate to bleach (Arm and Hammer Washing Soda is sodium
carbonate) I wonder what the dilution is. Hmmmm...I betcha I could find an
MSDS sheet on that that would tell me the percentage.
Nadeau's percentage is less, though, this author saying 4g of sodium
carbonate and 3 grams of sodium hypochlorite in a total of 500ml water,
hence 8/6% (name of Durham, H. E. in an article Direct Carbon Printing, Jan
15 1943).
Not that I need to use this because the prints contained gelatin, etc. Oh,
other things, too...more on this later, I have a recipe for "Artigue" from
1896 out of the Bichromate Salts in Photography Lectures--Blair's.
Chris
----- Original Message -----
From: "John Grocott" <john.grocott403@ntlworld.com>
To: <alt-photo-process-l@usask.ca>
Sent: Monday, November 26, 2007 5:56 AM
Subject: Re: Eau de Javelle ( Javel )
Javelle water or Javel water (both: zh?vel`), Fr. eau de Javelle,
aqueous solution of sodium or potassium hypochlorite. It was originally
made
near the French town of Javelle (now part of Paris) and was the first
chemical bleach, a use first demonstrated by C. L. Berthollet in 1785. It
was produced by passing chlorine gas through a water solution of potash
(potassium carbonate potassium carbonate, chemical compound, K2CO3, white,
crystalline, deliquescent substance that forms a strongly alkaline water
solution. It is available commercially as a white, granular powder
commonly
called potash, or pearl ash.
After the invention of bleaching powder bleaching powder, white or
nearly white powder that is usually a mixture of calcium chloride
hypochlorite, CaCl(OCl); calcium hypochlorite, Ca(OCl)2; and calcium
chloride, CaCl2.
Javelle water was sometimes produced by reacting the bleaching
powder with potash or soda ash (sodium carbonate sodium carbonate,
chemical
compound, Na2CO3, soluble in water and very slightly soluble in alcohol.
Pure sodium carbonate is a white, odorless powder that absorbs moisture
from
the air, has an alkaline taste, and forms a strongly alkaline water.
Now usually sodium hypochlorite solution, it is used in bleaching
bleaching, process of whitening by chemicals or by exposure to sun and
air,
commonly applied to textiles, paper pulp, wheat flour, petroleum products,
oils and fats, straw, hair, feathers, and wood.
and as a disinfectant.
----- Original Message -----
From: John Grocott
To: The List
Sent: Monday, November 26, 2007 12:10 PM
Subject: Eau de Javelle ( Javel )
Hi,
Since someone may be interested in Javel Water, its mentioned on the
Internet and also by Lluis Nadeau, ''Gum Dichromate'' 1 9 8 7 . Page 7
6. ''ARVEL''
Quote:-
'' For a period of about fifteen years preceding World War 11 the
Fabrique de papier FRESSON commercialized a ''different'' Direct Carbon
paper called ARVEL. In an attempt to do away with the sawdust
development, the paper was exposed under a negative for a period
considerably longer than usual i.e. 5 to 20 times longer. After
exposure, the paper was soaked in a 3 to 4% solution of Javelle water
and the (relatively ) unhardened parts of the image were then dissolved,
leaving a positive image.''
......................................................................
I guess there must have been a great number of photographers making
successful Arvel prints over this 15 year period of time. Where are they,
now.........the prints and the photographers ?
John - Photographist - London - UK.
..................................................................................
----- Original Message -----
From: "John Grocott" <john.grocott403@ntlworld.com>
To: <alt-photo-process-l@usask.ca>
Sent: Monday, November 26, 2007 10:00 AM
Subject: Re: Eau de Javel if you are interested.
> Hi Chris and ALL,
> Nice with a dash of lemon on a sunny
summer
> day.
> I wonder if anyone on this list has ever used this refreshing cocktail
? ?
> Spelt with two ''L 's'', of course.
>
> Chin, chin. Down the hatch !
> Seasonal greetings.
> John. Photographist - London - UK
>
> E.J.Wall's Dictionary of Photography , eighteen ninety seven gives :-
> ''Eau de Javelle is used for eliminating the last traces of hypo from
the
> film, and also for reducing over-dense negatives, its action being due
to
> hypochlorous acid. It is a solution containing an alkaline
hypochlorite,
> and can be made as follows :-----''
>
> Chloride of lime ............................. 2 ozs.
> Carbonate of potash ............................. 4 ozs
> Water ......................................................40 ozs.
>
> Agitate the chloride of lime with 30 ozs. water, dissolve the potash in
the
> remainder, mix and filter.
>
............................................................................................
> ----- Original Message -----
> From: "Christina Z. Anderson" <zphoto@montana.net>
> To: "Alt, List" <alt-photo-process-L@usask.ca>
> Sent: Monday, November 26, 2007 3:26 AM
> Subject: Eau de Javel if you are interested.
>
>
>> For what it is worth--eau de Javel (one "l" is the correct spelling so
the
>> article says) is said to be 4 g. sodium carbonate and 3 g. sodium
>> hypochlorite mixed each separately with a bit of water and then
combined
>> in a total water amount of 500ml. This was used to develop "direct
>> carbon" prints or paper such as Fresson, Arvel, Artigue, also a couple
>> "direct carbon" papers from Germany (Hochheimer-Gummidruckpapier and
>> Buhler's direct carbon paper). These are prints made with gelatin,
not
>> gum. This is with a 6 min sun exposure in summer, a 2-3% pot bi
>> sensitizer. Eau was put in a tray and print face down in it.This
comes
>> from a 1943 article in the BJP. I am going back through about 200
sources
>> I have on gum and this doesn't apply to me per se but thought someone
>> might have use for it before I toss it.
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