It was also seen that phytoremediation using hyperaccumulating plants was increased using ammonium thiosulphate and potassium iodide, as they allow metals to be biologically accessible to the plant (Ruiz and Daniell, 2009; Pedron et al., 2011). stream
DOT SHIPPING NAME: Ammonium Thiosulfate Solution, Not Regulated SECTION XV***REGULATORY INFORMATION*** U.S. FEDERAL REGULATIONS: OSHA Standard 29 CFR 1910.1200 requires that information be provided to employees regarding the hazards of chemicals by means of a hazard communication program including labeling, material safety data On the other hand, certain acidic materials, e.g., acidic powders, are not preferably introduced at this time because their inclusion may result in acid catalyzed disproportionation thereby reducing the shelf life of the composition. GB 1310242 to Hoechst discloses a method for stabilizing crystalline ATS and ATS aqueous solutions using 0.1 to 8.0% (w/w) additions of sodium sulfite and 0.5 to 3.5% (w/w) additions of dicyanodiamide. Most commercial compounds are pyridines, pyrimidines, amino triazoles, and sulfur compounds, such as ammonium thiosulfate. Yes, TF-4 when mixed with distilled water is very low order, just a hint of amonia. Fertilizer contributing
You can also add it to TF-3. The downsides are longer fix times (and with that wash times), and that it doesn't last long. Sulfate, which is widespread in sewage, industrial wastewater and pesticide residues, poses a great threat to aquatic organisms and human health. No. Where a bleaching-fixing bath is desired, bleaching agents can be included. In this regard, "dry" refers to a moisture content of not greater than about 1% by weight. Ammonia is a gas NH3 and the solution in water produces Ammonium Hydroxide that is known as household ammonia. These conditions include atomization, air flow, heat distribution, powder loading in the air flow, powder/air separation and the like. portugal Ammonium thiosulfate is quite rare and expensive, what i´m asking is if i mix a rapid fixer from mixing ammonium chloride and sodium thiosulfate i get ammonium thiosulfate in the solution, rising fixing speed, plus, i generaly use alkali fixer for films, but i mix it like this: sodium tiosulfate 200gr ammonium chloride 50gr However, the product of this process would not dissolve as rapidly as would be required of a powder fixative mixture. Do you use it as it is, or dilute it 1+4 like regular commercial fixers? It is the only way to know whether it clears the film or not. The Referee method is a primary measure of sulfate ion in all industrial water. They look the same as fixed with regular fixer because the paper of fixer is just to dissolve the remaining silver halides, leaving the film transparent. the soils with Na + S.
Ole, if the ammonium chloride only stinks in an alkaline solution, is this also true about the ammonium thiosulfate? I did a little digging into the US Patent Office and found the patent for Clayton Odorless Fixer. I just had to get to fresh air and I could breath fine again. In this AOS test, the ATS product is mixed into water, under ambient conditions, in an amount to provide a 20 wt % solution and the appearance thereof is visually judged with respect to turbidity. /Filter /DCTDecode
No visible impurities. Thanks for all the info! The ATS capable of being employed in this process includes commercial grade ATS solutions, e.g., those generally labelled "Ammonium Thiosulfate Solution, 58/60%, Photograde", which are available from, e.g., Hickson-Kerley, and Hoecsht AG among others. Thanks - If I need a stop bath, I will definitely consider Citric Acid. Fuji Hunt Photographic Chemicals, Inc. (Paramus, NJ), 430/393, 430/458, 430/460, BUCHANAN, INGERSOLL & ROONEY PC (ALEXANDRIA, VA, US), Click for automatic bibliography The use of MerB conversion of methyl mercury into a less toxic form using polyphosphate kinase (PPK). The preferred moisture content in this regard is about 0.3-0.5% by weight. in Norway its practically impossible to get a hold of pure ammonia. <<
Ingraham, U.S. Pat. Typically, the amount of sulfur which can be tolerated is less than 0.02% by weight. Mack, U.S. Pat. Staden and Taljaard (1996) detected sulfate in natural waters and industrial effluents by turbidimetric and spectrophotometric methods. I've recently switched to the Silvergrain chemicals, which are pretty much odor free. Such precipitation techniques suffer from a number of disadvantages including being slow, laborious, costly, and incurring problems in recycling or disposing of mother liquor remaining from the crystallization process. Explosions may be caused by contact with ammonia salts, Soil Microbiology, Ecology and Biochemistry (Fourth Edition), is questionable.