Photographers' Formulary Potassium Dichromate 100 Grams
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Photographers' Formulary Potassium Dichromate 100 grams

SKU: PYPD100G MFR: 10-1000 100G
(4)3 questions, 16 answers
$6.77
$10.95
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Key Features

  • Achieve archival quality prints with Photographers' Formulary Potassium Dichromate.
  • Fine grain results are easily attainable, enhancing your black and white photography.
  • Extend tonal range in your prints using this essential darkroom chemical for nuances.
  • Simple mixing ratios make this Potassium Dichromate easy to use in your darkroom.
  • Long shelf life ensures your darkroom chemicals are ready when you need them most.
  • Use as a bleach or intensifier; a versatile solution for black and white processes.
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Questions & Answers

Je O : Can this be used to make photo emulsion for screen printing?ROSE G : That's what I bought it for. I did a lot of research and learned this was the exact product to buy, but I haven't used it yet. So my knowledge is second-hand ¯\_(ツ)_/¯LORENZO I : Could be, but is not advised. Potassium Dichromate is a seriously dangerous chemical that might be carcinogenic if used and/or disposed incorrectly. Buy a pre-made photo emulsion kit instead, more expensive but safer.BRIAN S : yes! that is what i have used it for :) i am no expert and the process seems pretty difficult yet i think it is about the same as the store bought version's process
Shopper : what does it look like?RAPHAEL L : It's a crystalline orange powder.DONALD B : It's orange powdered crystals.ALAN G : red-orange crystals, not much over 1mm in any dimensionJAMES R : The potassium dichromate from Photographers' Formulary is in the form of an orange granule.GERALD R : It is a red crystalline material, and a known carcinogen, so be careful and wear gloves. I diluted it with water. I used it for "staining" wood. It darken most woods and produces a red mahogany finish.MATT B : It looks like bright redish orange sea salt.
Eric H : How to make it become a liquid?RAPHAEL L : Just add water! (distilled is best)CLANCY B : distilled water... it is toxic to lungs, kidneys, etc use rubber gloves and dust mask..DARRAGH S : Mix it with water. The formula for gum bichromate is: Part A 20mL Prepared Gum Arabic Solution 2-3g tube water color with high density of pigment Part B 13g Potassium dichromate 80mL distilled water at 125 degrees F Approx. 20mL distilled water at room temp to make 100mL solution. Mix part A with part B just prior to use.GERALD R : It is soluble in water. I added about 2 tablespoons of the material in a quart of water. That may have been more concentrated than I needed, but I could not find any dilution formula. It was just what I needed to darken the current grade of mahogany that is sold by our lumber yards.DONALD B : Mix 1tea spoon of Potassium Dichromate to one quart of water. This is how we use it to oxidize mahogany before finishing.NATHAN W : Normally you will use this as part of a photoemulsion (so...you would apply this to a surface, let it dry, then expose it to light). Like all photo chemicals, make sure to take proper precautions when using this product.JAMES R : You'll need to know what percentage of solution you want before you begin. If you want a 10% solution, you'd need to dissolve 10 parts of potassium dichromate in 100 parts water (example: 100g potassium dichromate in 1000ml water). I'd recommend using distilled water if you're going to use the solution for photography. To dissolve the chemical you'll want to heat about 3/4 of the total amount of water you need to around 95 degrees F. Transfer the heated water to a graduated cylinder and slowly stir in the premeasured potassium dichromate. Once the chemical is completely dissolved, add room temperature water to bring the total volume to the disired level. Stir well to make sure the solution is combined. Example: If I'm making a 10% solution with a total volume of 1000ml. I would heat 750ml of water and dissolve 100g of chemical into the water. I would then add enough room temperature water to bring the volume to 1000ml.

Reviews about this item

Review Summary

2021-01-27T08:49:46

Rated 5 out of 5

For b/w reversal

Just the chemical. Nice bottle. Use in bw reversal process

VLADIMIR S.

2020-06-30T16:22:25

Rated 5 out of 5

AOK

What was ordered. Lab grade. Using for alt printing processes

PETER M.

2018-09-28T15:12:15

Rated 5 out of 5

Product was great.

The chemistry meet all expectations. I received in quickly.

Neal P.

2012-02-06T19:00:00

Rated 5 out of 5

Great chemical at a great price!

Very pleased with the speed of shipping and the price and quality of the product! My 5% gum bichromate emulsion, made with this product, exposes fully in 3 minutes or less in morning sunlight. Reactions are consistent and full. Highly recommended for alternative-process printers.

RAPHAEL L.

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About Photographers' Formulary Potassium Dichromate 100 Grams

FEATURED REVIEWS

Great chemical at a great price!

By RAPHAEL L.

Very pleased with the speed of shipping and the price and quality of the product! My 5% gum bichromate emulsion, made with this product, exposes fully in 3 minutes or less in morning sunlight. Reactions are consistent and full. Highly recommended for alternative-process printers.

For b/w reversal

By VLADIMIR S.

Just the chemical. Nice bottle. Use in bw reversal process

The Potassium Dichromate (Bichromate) 100g is a high-quality, lab-grade chemical compound that is essential for various applications, particularly in alternative photographic processes. This product is renowned for its consistent performance and reliability, making it a preferred choice for professionals and enthusiasts alike.

Ideal for creating 5% gum bichromate emulsions, this Potassium Dichromate ensures quick and full exposure in minimal time, even under morning sunlight. Users have praised its consistent reactions, making it a valuable asset for alternative-process printers.

Whether you're involved in lab work or exploring alt printing processes, this Potassium Dichromate 100g can meet and exceed your expectations. It's not just about the product's quality, but also the speed of shipping that has been highly appreciated by users.

Please note that a DEA form is required for the purchase of this product. Trust Adorama for your Potassium Dichromate needs, where quality, reliability, and customer satisfaction are our top priorities.

Photographers' Formulary Potassium Dichromate 100 Grams Features

  • Lab-grade Potassium Dichromate for precise alternative photographic processes
  • 100g quantity perfect for creating consistent 5% gum bichromate emulsions
  • Ensures rapid exposure, typically under 3 minutes in morning sunlight
  • Highly reliable for full and consistent reactions in alt printing
  • Ideal for professional and enthusiast use in various applications
  • DEA form required for streamlined procurement process

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Key Features

  • Achieve archival quality prints with Photographers' Formulary Potassium Dichromate.
  • Fine grain results are easily attainable, enhancing your black and white photography.
  • Extend tonal range in your prints using this essential darkroom chemical for nuances.
  • Simple mixing ratios make this Potassium Dichromate easy to use in your darkroom.
  • Long shelf life ensures your darkroom chemicals are ready when you need them most.
  • Use as a bleach or intensifier; a versatile solution for black and white processes.