Support our Sponsors, they keep FADU free:   AG Photographic   The Imaging Warehouse   Process Supplies   RH Designs   Second-hand Darkroom Supplies  

Notices

Go Back   Film and Darkroom User > Chemistry > Chemical formulae

  ***   Click here for the FADU 2015/2014 Yearbooks   ***

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 18th February 2021, 12:51 PM
Terry S Terry S is offline
Friend
 
Join Date: Dec 2011
Location: Southend on Sea, Essex, England, UK
Posts: 3,757
Default

Quote:
Originally Posted by pentaxpete View Post
I squirt in some Butane Lighter Fuel from a can when the ID11 bottle is not full to stop oxidation.
Pete - Do you dilute it at 1 to etc. or do you use it as a stock solution, returning it to the bottle approximately 10 times for 10 films as mentioned?

Terry S
Reply With Quote
  #12  
Old 24th February 2021, 09:48 AM
pentaxpete's Avatar
pentaxpete pentaxpete is offline
Friend
 
Join Date: Feb 2009
Location: Brentwood, Essex UK
Posts: 390
Default

TERRY -- I use it DILUTED 1+1 OR for slow 'Contrasty' films 1+3
__________________
Computerised and Slightly DIGITISED but FILM still RULES with ME !
Reply With Quote
  #13  
Old 3rd February 2024, 03:03 PM
Terry S Terry S is offline
Friend
 
Join Date: Dec 2011
Location: Southend on Sea, Essex, England, UK
Posts: 3,757
Default An alternative version of D76 / ID11

I'm just resurrecting this, as I mainly use home mixed ID11 / D76 and unlike Pete and others, I've never noticed any huge increase in activity as I've used it.

Currently I am trying out home mixed E76, which has produced some lovely negatives for me, which so far have printed straight with a grade 3 filter - my usual go to.

But, further browsing of 'The darkroom cookbook', I've noticed that there are a number of versions of D76 / ID11, with one of them said to have NO increase in the developer's activity. Not noticing any difference in my mixes, I'm not sure if I would notice any difference, but it may be worth a go for others who do.

Terry S
Reply With Quote
  #14  
Old 3rd February 2024, 05:54 PM
Lostlabours Lostlabours is offline
Friend
 
Join Date: Apr 2012
Location: West Midlands/Aegean
Posts: 1,986
Default

I've always used ID-11 replenished,it needs a few hours from mixing to settle. we would leave it overnight, or over a weekend. It would last 6 to 8 months and you would spot a slight change.

The only time I used it dilute was at the request of a friend, and that was at 1+2.

Some years ago someone posted a photo of an Australoan box of D76 which gave accurate percentages of the ingredients, it showed that the then current formula was between D76 & D76d.

An Ilford patent for a new developer show ID-11 as a reference developer but with 50% more Borax, 3g rather than 2g..

The reason for the buffering changes is D76, and its many exact clones, were formulated to be replenished.

In more recent years with amateurs usually using it dilute as a one shot developer Kodak and Ilford increased the buffering to give greater consistency when diluted particularly at 1+3.

D76d uses 8g Borax & 8g Boric Acid as its buffering, the Australian box indicates a change in D76 to 4g Borax & 2g Boric Acid for the buffering.

Ian
Reply With Quote
  #15  
Old 4th February 2024, 07:31 AM
Keith Tapscott.'s Avatar
Keith Tapscott. Keith Tapscott. is offline
Friend
 
Join Date: Jun 2009
Posts: 1,125
Question

Quote:
Originally Posted by Lostlabours View Post

The Australian box indicates a change in D76 to 4g Borax & 2g Boric Acid for the buffering.

Ian
Just trying to get this right.

Metol 2 grams
Sodium sulphite 100 grams
Hydroquinone 5 grams
Borax 4 grams
Boric acid 2 grams
Water to make 1 litre.

Is that the Kodak packaged D76 formula?
Reply With Quote
  #16  
Old 4th February 2024, 02:59 PM
Nat Polton Nat Polton is offline
Friend
 
Join Date: Oct 2019
Posts: 747
Default

Kodak Professional Data Book 1973

Kodak Developer D-76

Water to about 50C (125 F)

KODAK ELON Developing Agent 2.o g
Sodium Sulfite (anhydrous) 100.0g
Hydroquinone 5.0g
Borax (Granular) 2.0g
Water to make 1.0 litre

I am not sure if you want the published formula or exactly what is on the Australian box in question.
__________________
It will all be over by Christmas.
Reply With Quote
  #17  
Old 5th February 2024, 12:51 PM
Terry S Terry S is offline
Friend
 
Join Date: Dec 2011
Location: Southend on Sea, Essex, England, UK
Posts: 3,757
Default

Quote:
Originally Posted by Lostlabours View Post
Some years ago someone posted a photo of an Australoan box of D76 which gave accurate percentages of the ingredients...

Ian
Wow, that would be a good and big step forward for home mixers like myself! If only Easylith had a list on the bottle, but I can't see that happening soon.

Terry S
Reply With Quote
  #18  
Old 5th February 2024, 02:00 PM
Keith Tapscott.'s Avatar
Keith Tapscott. Keith Tapscott. is offline
Friend
 
Join Date: Jun 2009
Posts: 1,125
Default

Quote:
Originally Posted by Nat Polton View Post

I am not sure if you want the published formula or exactly what is on the Australian box in question.
It's the Australian packaging that I wanted.
From what Ian had said, Kodak and Ilford have tweaked the original formula.
Reply With Quote
  #19  
Old 5th February 2024, 06:57 PM
Lostlabours Lostlabours is offline
Friend
 
Join Date: Apr 2012
Location: West Midlands/Aegean
Posts: 1,986
Default

The Autralian packaging gave these precentages, there was also a matching MSDS.

1.8% Boricacid
3.6% Borax
4.5% Hydroquinone

As we know D76 contains 5g per litre Hydroqinone then the Boric acid must be 2g/l and the Borax 4g/l. It also apperas the chane was made many yeras ago in the 1960s.

Ian
Reply With Quote
  #20  
Old 6th February 2024, 11:53 AM
Keith Tapscott.'s Avatar
Keith Tapscott. Keith Tapscott. is offline
Friend
 
Join Date: Jun 2009
Posts: 1,125
Default

Quote:
Originally Posted by Lostlabours View Post
The Autralian packaging gave these precentages, there was also a matching MSDS.

1.8% Boricacid
3.6% Borax
4.5% Hydroquinone

As we know D76 contains 5g per litre Hydroqinone then the Boric acid must be 2g/l and the Borax 4g/l. It also appears the change was made many years ago in the 1960s.

Ian
At last we now know the Kodak packaged D76 formula.
Reply With Quote
Reply
Support our Sponsors, they keep FADU free:   AG Photographic   The Imaging Warehouse   Process Supplies   RH Designs   Second-hand Darkroom Supplies  

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Home made neg insert PaulDiz Darkroom 5 16th April 2020 09:41 AM
Home made camera's CornishChris Photography in general 2 13th November 2019 08:56 AM
Home made filters. CambsIan Photography in general 5 9th August 2018 08:04 AM
Home made camera pudgoodwin Cameras - Large Format 9 9th November 2015 09:10 PM
Home made cameras RayHeath Cameras - Large Format 6 31st December 2010 08:42 AM


All times are GMT. The time now is 11:57 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.