Anti Fog

[zone v]

Hello
Does anyone know where I can get some Kodak Anti Fog No.1 Tablets? I have been checking around on Photographers formulary, but they have 100 grams of powder for a steep price. Any advice would be quite helpful. Thank You.

 

[glennfromwy]

B&H used to carry the Edwal anti fog agent. I don't know if they carry the Kodak. Why not get some benzotriazole from Artcraft Chemical? For little money, you can have enough anti fog stuff to last a very long time.

 

[Tom Hoskinson]

100 grams of benzotriazole is a huge supply of antifog!

Check with Artcraft, maybe they'll sell you 10 grams.

 

[MurrayMinchin]

Hi zone v, welcome aboard APUG

I usually use 15ml of 2% benzotriazole per litre of print developer stock solution...100 grams would indeed be a huge supply for me!

I've heard it can be nasty for ones health to mix from dry ingredients, but don't quote me on that.

Doesn't anybody still sell it in 1% or 2% solutions? I'm still working on the 2 bottles of 2% benzotriazole solution I got from Zone VI about a decade ago, so I haven't had to look for a new bottle yet.

Murray

 

[pgomena]

Calumet stocks Edwal Liquid Orthazite (1 or 2% benzotriazole solution, I forget which) for $18.95 a quart + shipping if you want the ease of premixed. Should last you quite a while. Mixing your own from powder sounds cheaper.

Peter Gomena

 

[zone v]

Thanks to all for your generous replies. I will look into your suggestions and try the stores you have recommended to me.

Happy Holidays to all!

 

[Mike Wilde]

Consider JD Photochem for BZT?

BZT is sold in the smallest size, as $6US. Claire's shop is outside of Montreal,Canada, however she mails from the US regularly.

No connection to the company other than a regular and satisfied customer. Mike at Artcraft is another fine supplier that I have been pleased to deal with.

 

[reellis67]

I bought mine from the Formulary in dry form and it was not overly difficult to mix.

- Randy

 

[Tom Hoskinson]

Benzotriazole dissolves easily in warm water and in isopropyl alcohol. Mix it a well ventilated place and don't breathe any benzotriazole dust!

http://www.jtbaker.com/msds/englishhtml/b1692.htm

Synonyms: 1-H-Benzotriazole; Cobratec 99; 1,2-Aminozophenylene; Benzene Azimide; 1,2,3-Benzotriazole
CAS No.: 95-14-7
Molecular Weight: 119.12
Chemical Formula: C6H5N3
Product Codes: B934


Inhalation:
May cause irritation to the respiratory tract. Symptoms may include coughing, sore throat, labored breathing, and chest pain.
Ingestion:
May cause irritation to the gastrointestinal tract. Symptoms may include nausea, vomiting and diarrhea.
Skin Contact:
May cause irritation with redness and pain.
Eye Contact:
May cause irritation, redness and pain.

 

[fhovie]

Benzotriazole - works great - cheap - easy to use.

 

[Jim Jones]

I occasionally reduce fog in negatives with Potassium Ferricyanide after processing. Perhaps others with more expertise can say how this compares to benzotriazole in the developer.

 

[fhovie]

I'm no expert but I believe pot ferri is bleach and will take the whole image down a little where the benzotiazole is a restrainer that reduces the activity of the developer which shows up first at base fog levels - and if it is stronger, it will reduce the shadows as well.

 

[Tom Hoskinson]

You're correct fhovie, benzotriazole is an organic restrainer that reduces the activity of the developer.

Potassium Ferricyanide is a silver bleaching reagent.