où trouver du rodinal?

Démarré par meregigi, Février 25, 2021, 21:15:12

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meregigi


tanguy29


Odysseus


Part A
Water 165F/75C   150   ml
p-Aminophenol Hydrochloride   10   g
Potassium Metabisulfite   100   g
Part B
Cold water   150   ml
Sodium Hydroxide   42   g
Part C
Cold water to make   1000   ml
Mixing Instructions: Add chemicals in specified sequence. Always use cold water when mixing sodium hydroxide due to risk of heat reaction. Always wear gloves and protective goggles when mixing sodium hydroxide. Unlike many other two part developers you must mix both parts together to make the concentrated solution. Part A: Boil 150 ml of water, allow to cool to 160-170F/70-75C, pour into a thick glass or ceramic container. Add 1 gram of Potassium Metabisulfite, stir until dissolved. Add the p-Aminophenol Hydrochloride, stir until about 75% dissolved. Add the remainder of Potassium Metabisulfite, complete mixing. Part B: Pour 150 ml of cold water into a thick glass or ceramic container. Fill a large plastic pan with ice cold water for use as a water bath. Place the 150 ml container into the water bath. Add the Sodium Hydroxide, stir until dissolved. Final Mix: Allow both solutions to cool to 115-125F/45-52C before continuing, then very slowly add just sufficient amount of Part B to Part A to dissolve the pellet that initially forms. Next, mix the two solutions together in a new container and add cold water to make 1000 ml. Let the solution stand in a cool place for 48 hours, then filter through a doubled-over paper towel into a suitable container. Concentrate keeps for a very long time if dispensed into a tightly closed bottle with as little air as possible. It is recommended not to keep it all in one bottle, but dispense into smaller ones, according to your projected needs. Initially the concentrate has pale lavender color, it darkens with storage with little impact on performance.

Dilution: 1+4, 1+9, 1+19


Odysseus

Je plaisante

il y en a même sur e-bay

une bonne adresse ?

https://www.google.com/

çà aide


meregigi


Odysseus

Quel est l'intérêt de la question ?

Si vous demandez où peut on trouver du HC 110 je comprends car il a des ruptures de stock

Pour le rodinal je ne vois pas; on en trouve même sur Amazon


Andhi

Bonjour, si besoin, l'Adonal remplace le Rodinal.

Odysseus

Le Rodinal est l'un des plus vieux révélateurs (fabriqué par Agfa)  datant du XIX° siècle dont la formule et le nom sont tombés dans le domaine publique.

Plusieurs firmes fabriquent du Rodinal

Adox ayant repris la fabrication d'Agfa ils appellent leur produit Adonal ne pouvant utiliser le nom Rodinal seul

Mais tous les produits sont identiques

meregigi


Bru

Dyslexique ou Disslexyque ?