Photographers' Formulary Benzotriazole is used as an organic antifoggant and density depressant in developers. 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 It can also be used as a fog restrainer when processing outdated papers.

2020年6月2日 · I have just about used up the last of my Edwal's Liquid Orthazite. Does anyone know the formula for it? I hate the idea of wasting materials trying to replicate something when the answer is there for the asking.

Unusual Fire & Explosion Hazards – None known. Symptoms and Effects of Overexposure – Eye contact may cause irritation. Prolonged or repeated contact may cause skin irritation. Eyes: Flush eyes with large amounts of water. Get medical attention if irritation persists. Skin: Wash thoroughly with soap and water.

2014年3月25日 · I use orthazite and for pretty foggy film I tend to add 5-10ml of orthazite and I believe I've found anti-fogging to be better when you combine kbr and btaz together Normally like 7ml orthazite 2.7% and 3-4ml kbr 1%

2009年7月27日 · I've searched Photo.net, and found all sorts of ideas to use benzotriazole, Edwal Liquid Orthazite, etc. I have a large number of 120 rolls of old Tri-X (the film with lots of silver content), but it needs some help. In testing for fog, it's coming i...

2005年9月11日 · According to the MSDS Edwal Liquid Orthazite is a 2.7% solution containing <5% sodium sulfite.

2001年11月21日 · some Edwal Liquid Orthazite - which is a compound of . benzotriazole, sodium sulfite, & water. While it DOES mainly . spec for photo paper, there is this line at the bottom of the back . label: The addition of 2ml per gallon of D-76 or similar borax-type . developers will give finer grain with no apparent loss of film . speed.

2010年7月3日 · Want to Buy Rolleinar 1, Bay 1? I am looking into using Benzotriazole (BTAZ) to revive some fogged Kodak Polycontrast Rapid II RC paper, and have a few questions. Sourcing: Is there any place in Vancouver that sells BTAZ, either in pure form or in solution (like Edwal Liquid Orthazite)? Leo's doesn't have it.

Trouver un orthésiste-prothésiste près de chez vous. Il est le SEUL professionnel de la santé diplômé en orthèses-prothèses orthopédiques et spécialisé pour tous les appareils orthopédiques (de la tête aux pieds).

Benzotriazole was always sold as a liquid concentrate by Edwal as Orthazite. It's main purpose is to help salvage outdated papers, but it certainly can cool the tones in a paper with a slight blue-ing effect. When I want to cool down the tones in a paper I add 1/2-ounce to an ounce of Orthazite to a quart or so of working-strength developer.