Call +420 605 269 520

Informations

English

Česky

Kč CZK

Welcome Sign Up

Cart 0

0 item(s) - 0,00 Kč

No products

To be determined Shipping

0,00 Kč Tax

0,00 Kč Total

Prices are tax included

Check out

Quantity

Total

Product successfully added to your shopping cart

There are 0 items in your cart. There are 0 items in your cart.

Total (tax incl.)

Continue shopping Proceed to checkout

The table of developers for wet plate collodion process

Name of Developer	Process	Ferrous Sulfate	Copper Sulphate	Potassium Nitrate	Barium Nitrate	Silver Nitrate	Formic acid	Nitric Acid	Sulfuric Acid	Acetic Acid	Ethanol
Negative	negative	o	-	-	-	-	-	-	-	o	o
Standard	positive	o	-	-	-	-	-	-	-	o	o
MD-3	positive	o	o	-	-	-	-	-	-	o	o
MD-6	positive	o	o	o	-	-	-	-	-	o	o
MD-7	positive	o	-	o	-	-	-	-	-	o	o
							-
MD-1	positive	o	o	-	-	-	-	-	o	-	o
MD-4	positive	o	-	-	o	-	-	o	-	-	o
MD-5	positive	o	o	o	-	-	-	o	-	-	o
MD-8	positive	o	o	o	-	-	-	-	o	-	o
							-
MD-2	negative	o	-	-	-	-	-	-	o	o	o
Power	positive	o	-	o	-	o	-	o	-	o	o
MD-9	positive	o	o	o	-	-	-	-	o	o	o
MD-10	positive	o	o	-	-	-	o	-	-	o	o

Ferrous Sulphate
- major developing agent
- reduces the silver nitrate on to metallic silver
- is not permanent, by air oxidizes on to ferric sulphate (brown color), this process continues in developer if contains only acetic acid

Copper Sulphate
- accelerates developing
- increases coverage
- enhances cleanliness of developing

Potassium Nitrate
- for better of white on the plate

Silver Nitrate
- for better metallic silver on the plate

Acetic Acid
- prevents formation of ferric hydroxide
- know not prevent oxidation of Ferrous Sulphate therefore old developers with acetic acid can have a dark color
- gives a warm tone

Nitric Acid
- prevents formation of ferric hydroxide
- stabilizes of Ferrous Sulphate, the oxidation slows down considerably and therefore have developers with inorganic acid longer of life time
- gives a cool tone

Sulfuric Acid
- prevents formation of ferric hydroxide
- stabilizes of Ferrous Sulphate, the oxidation slows down considerably and therefore have developers with inorganic acid longer of life time
- gives a cool tone
- have a less oxidative influences

Ethanol
- ensures adhesion of developer to the collodion layer