This is 30g of Potassium Permanganate from Photographers' Formulary. This powerful oxidizing agent is commonly used as a reducer or acid solution during processing or as a bleacher for redevelopment processes. Additionally, it can also be used to test for hypo potency or as a component in a hypo eliminator to help shorten washing times.

Often Used as Reducer or Bleacher    Hypo Eliminator or Hypo Potency Tester

Related Questions and Answers

Q: 1. Can we use this to heat chemicals, too?

A: Yes.

Q: 2. How long can Glycin be stored without opening the package?

A: The shelf life of glycine powders and 10x stock solutions can exceed 1 year. However, as glycine ages, it becomes oxidized and may yield yellow-colored solutions. This may affect the pH of the solution. If yellowing occurs, it is recommended that you replace the product.

Q: 3. What colors does it come in?

A: Black. This product just comes in black, as listed in the description. Good for light sensitive chemistry.

Q: 4. if I get 100 grams Potassium Ferricyanide should I get 250 grams Ferric Ammonium Citrate to get proper soulution for cyanotype prints ?

A: This would be a proper mixture for cyanotype prints.

Q: 5. Do I need to mix with water? Does it comes in spray recipient?

A: The Photographers' Formulary Glycerin (100mL) needs to be diluted in water. Since this is a concentrated formula, the spray trigger cap is not provided with this bottle.

Q: 6. What country is it made in?

A: The Photographers' Formulary Tyvek Apron is made in China.

Q: 7. How do you label your chemicals with this? I have not found anything that lasts too long

A: One option is to use a Brother P-Touch Label for each bottle. One option is the Brother PT-D210 Portable Label Maker, BH # BRPTD210. https://bhpho.to/2P3NoLi

Q: 8. How long is the shelf life once mixed? Is the solution oxygen sensitive?

A: This is from their website:The unused solution keeps indefinitely. After the first use, however, it should not be kept more than two months. Its capacity is about 20 8X10's for paper, 29 rolls of 120film, or 36 exposure 35mm film per liter of working solution.I'm not sure about oxidation, but with at two month shelf life, I don't believe that will be a problem (I am not an expert on this subject).

Q: 9. Can this Tannic Acid be use tone cyanotype prints? If so, what color does it turn the print?

A: Tannic Acid does in fact tone cyanotype prints. If toned straight in a bath of tannic acid it will darken the print give it more of a violet/purple tone. There are a variety of toning combinations that use this, and I recommend the Book of Alternative Processes by Christopher James if you're interesting in more.

Q: 10. is this a 3 piece set?

A: Hi, this is a single beaker--this one with the arrow underneath it.