LabOldTech will be close for holidays from July 26th to August 23rd

The n.1 reference website for the secret of old photographic techniques.

Platinum, Palladium and Alternative DIY & OLD Photographic Processes - Visit our catalogue for Kits, Tools and Equipment.

Labotech2000 srl | Cusago (MI) Italy 📞+39.02.903.94213

Laboldtech is the site n. 1 web site in Italy for selection, supply and sale of chemical reagents and professional tools specific for ancient photographic techniques.

Labotech2000 srl | Cusago (MI) Italy
📞+39.02 9039 4213

Kit21 Ferrous Sulfate developer positive

Additional information

27,18 + Vat 33,16



Kit contents:

Ferrous sulfate                          42gr

Glacial acetic acid                      40ml

Ethyl alcohol                             50ml

Bottle PET amber color 1Lt         1

Instruction sheet


Download Material Safety Data Sheet from the dedicated section on the website.



Dissolve the ferrous sulfate in 900ml of demineralized water. Add the acetic acid and the ethyl alcohol while stirring to help dissolve and combine. Add water to make a total of 1liter and store into the labeled bottle.

It is best to replace the fixer after a few prints.

Standard Ferrous Sulfate developer positive-Kit21


Loader Loading...
EAD Logo Taking too long?

Reload Reload document
| Open Open in new tab

Download [260.83 KB]

No one can do a good job without proper tools, and the chemicals can be defined, the tools of the photographer. This is the weak point of many operators. They work with economic and inferior chemicals, and many do not know the true composition; not to mention unwanted interferences that can be created between them.
“Chemicals are the tools of art photographers. Through a deep knowledge of photo chemistry the artist can reach and master the art photography level.”

Ready to Use Kits

Contact Us

Viale Europa, 72/D11

20090 Cusago MI


ph: +39.02.903.94213

info @ laboldtech . com