Measuring tiny amounts | Pictorial Planet

Pictorial Planet

From the author of "The Art of Black and White Developing"

Measuring tiny amounts of chemicals

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This is a tip I often use with Phenidone because it is used in such tiny amounts.
- Start dissolving 1 gram of Phenidone in 90 ml of 99% pure Isopropyl Alcohol.
- When dissolved make up to liquid to 100 ml.
- This gives you a 1% Phenidone solution.
- Now, each 10 ml of the solution equals 0.1 grams Phenidone. Nice and easy!

Note: The alcohol will have no effect on the developer, film or other chemicals.
To use with other chemicals, try dissolving them in water (instead of the alcohol) to make your 1% solutions.

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