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User Manual for Photographers' Formulary Thiourea - 100 Grams Click to enlarge the picture
Contents of the user manual for the Photographers' Formulary Thiourea - 100 Grams
- Product category: Alternative Process & Miscellaneous Chemistry Photographers' Formulary
- Brand: Photographers' Formulary
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Photographers' Formulary Alternative Process & Miscellaneous Chemistry
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User manual for the Photographers' Formulary Thiourea - 100 Grams contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Photographers' Formulary product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Photographers' Formulary user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Photographers' Formulary product will considerably shorten its lifespan!
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Product description The Thiourea Toner is actually a sulfide toner. In alkaline solution, thiourea (thiocarbamide) reacts to yield sulfide ions, the active ingredient in the toning bath. The advantage of this process is the avoidance of the foul smelling sodium sulfide bath. To obtain beautiful rich brown, sepia-like tones, the print is first bleached using a ferricyanide-bromide bath then redeveloped in a sulfide bath. In this process, the silver metal in the print is first converted to silver bromide then to brown silver sulfide. The resulting print can give the impression of a print made in the late 1800's. UPC: 675152147028 Table of Contents
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Technical parametersPhotographers' Formulary 10-1470 100G Specs | Synonyms | Sulfocarbamide
Sulfourea
Thiocarbamide | | Appearance | White powder or white/colorless, prismatic crystals
The substance is soluble in water and ethanol | | Uses | In gold toning baths
Clearing yellow stains from prints
In Mordant solutions for dye toning | | Chemical Formula | CH4N2S | | Notes | Thiourea is neither toxic nor corrosive but, unfortunately, it is a potential carcinogen. Use rubber gloves when mixing or handling this compound or its solutions. Wash the work area, trays, and all mixing utensils with water followed by soap and water. Should a solution containing thiourea be spilled on the skin, wash immediately with water followed by soap and water. | | | | Package Weight | 0.3 lb | | Box Dimensions (LxWxH) | 4.8 x 2.2 x 2.1" |
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