Benzotriazole Anti-Fog #1 - 10G For Photographers

Benzotriazole Anti-fog #1 - 10g For Photographers

Product Code: eq2073
Availability: In Stock

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Reviews (6)

Photographers' Formulary Benzotriazole is used as an organic antifoggant and density depressant in developers.

Parameters
Synonyms	Aziminobenzene Benzisotriazole Edwal's Liquid Orthazite, which contains approximately a 3% solution of benzotriazole with sodium sulfite Kodak Anti-Fog #1 (no longer manufactured)
Appearance	Colorless crystals or white powder
Uses	Organic antifoggant and density depressant in developers Fog restrainer when processing out dated papers
Chemical Formula	C₆H₅N₃
Notes	Benzotriazole does not dissolve readily in cold water. Use hot water 125°f/52°c or higher
Packaging Info
Package Weight	0.05 lb
Box Dimensions (LxWxH)	10.05 x 4.7 x 2.85"

Benzotriazole acts as a restrainer without affecting other properties of the developer. It can also be used as a fog restrainer when processing outdated papers.

When blue-black or cold-black image tones are desired with bromide papers, benzotriazole should be used in addition to, or substituted for, potassium bromide.

Make a 0.2% solution of benzotriazole (2g benzotriazole in water at 125°f/52°c or higher to make 1 liter) then reduce the bromide to 1/10 or 1/6 strength and use just enough benzotriazole solution to prevent developer stain or fog. A little experimentation may be required.

The same treatment can be applied to chloride and chlorobromide papers to eliminate any greenish black tendencies and/or achieve a blue-black tone.

Related Questions and Answers

Q: 1. Can I use to replicate water drops in fresh/cold bottle drink transpiration?

A: Photographers' Formulary Glycerin (Glycerol) - 100ml can be used create droplets when photographing bottles or drinks.

Q: 2. Can this be connected directly to a NAS via the USB?

A: Yes, the Blackmagic Design MultiDock 10G has USB-C outputs. If your NAS allows SATA storage to be connected via USB, it would work.

Q: 3. Does this work with Mac Big Sur and an M1 processor?

A: According to Blackmagic Design, this item is currently not labeled as compatible with MacOS 11. See this page on their specs or contact them directly for up-to-date updates on if/when it will be compatible with Big Sur: https://www.blackmagicdesign.com/products/blackmagicmultidock/techspecs/W-DOC-02

Q: 4. What country is it made in?

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

Q: 5. What drives are compatible or supported on the Multidock 10G?

A: Any 2.5 inch solid state disk is compatible with the Blackmagic Design Multidock 10G. https://www.bhphotovideo.com/c/products/internal-hard-drives/ci/6525?filters=fct_form-factor_2238%3A2.5in

Q: 6. 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: 7. Where do you find the driver for this? This chipset driver download isn't available on Marvelle site, only the older shipset do.

A: Obtain from: https://www.marvell.com/support/downloads.html Select Marvel Public Drivers. This card uses an AQC113 chipset, which is not listed. Select Part Number AQC108 then select operating system (Windows, Mac, Linux). Installed without a problem in a Gen 4 slot and transfers up to 10Gb with the Marvell Windows driver.

Q: 8. Is this safe for use with all coatings that are on camera lens?

A: This kit can be used on any lens surface.

Q: 9. Hi folks, I just purchased this Nikon Fog Klear, and in the product description, it says that it comes with a Resealable Storage Bag for Protection . I did not get that. Did anyone who purchased this item received the storage bag? Or am I misinterpreting something here? Thanks for your response!

A: me too, no bag

Q: 10. Is it possible to chain two of these together, then both used on two computers?

A: You can use as many Blackmagic Design MultiDock 10G's as needed for any project, they mount like a drive bay with 4 drives, so there is no "daisy chain," necessary.

Sarret	04/09/2024
[0.05 lb] This does exactly as promised, no more no less. Reduces fog fantastically, but also knocks back development speed and paper sensitivity. The directions say to dissolve the 10g in 500mL water and using at a rate of 30mL per L of developer, this is not easy and takes a very long time. I recommend 10g in a Liter of water and using 60mL /L developer, though heat and adding a little less than a gram of sodium carbonate will assist in the dissolving process without effecting the benzotriazol solution. 5

Kelli	26/07/2024
[0.05 lb] I use this as an alternative to selenium for warmer tones. Has always worked great for me. 5

William	16/07/2024
[0.05 lb] I found a bulk loader in an antiques store holding a full roll of Ansco Super-Hypan Neg from the 1960's. I tried 7 different development tests before landing on a method that works to develop the film at ISO 100, and benzotriazole is a big component of the success. Upon receiving I added the 10g directly to a a liter of water to make a 1% w/v solution and poured some into a dropper bottle for use. Approximately 15 drops makes 1 mL. I develop my Ansco film in a Paterson tank with a 400mL solution of HC-110 Dilution B (1+31), with 30 drops or 2mL of benzotriazole. If I process 3 rolls at a time later on in a 1L developer solution I would use 75 drops or 5mL of benzotriazole for the same concentration. Agitation is continuous, to make up for the restrained development. You might experiment with less and less benzotriazole until it's barely enough to restrain the fog, as the restrainer also impacts contrast by inhibiting development of the shadows along with the fog. 5

William	14/05/2024
[0.05 lb] I found a bulk loader full of Ansco Super-Hypan, last made in 1967. After many development attempts and step-by-step improvements, I'm able to get usable, scannable, and darkroom printable (yes, really!) negatives. I'm use HC-110 at dilution B, and I add 45 drops (about 3mL) in my 400mL of developer. This works out to be 7.5mg/L of developer. Continuous agitation for 9 minutes is used to maximize activity in the highlights with the highly-restrained developer. 5

Bill	27/04/2024
[0.05 lb] I used this to develop a 40 year old roll of film. I tried developing without this, but it didn't work. After adding Benzo to my mix, I finally got the film developed! 5