Detail of "7500-53-0"

Reference

Dry silver toners

Dry silver toners. Winslow, John M. (Minnesota Mining and Mfg. Co., USA). U.S. US 3994732 30 Nov 1976, 5 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: G03C001-02. NCL: 096114100. APPLICATION: US 75-611025 8 Sep 1975. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic Processes) A combination of phthalazine and certain arom. acids, such as phthalic or 2,3-naphthalenedicarboxylic acid, or anhydrides thereof, can serve as a toner during the heat development of exposed dry Ag image-forming sheet materials. Thus, to a half soap slurry contg. Ag behenate half soap (45% free behenic acid and 55% Ag behenate) 9.59, Me2CO 51.28, and PhMe 26.36 g was added Me2CO 0.40, HgBr2 dissolved in MeOH 0.81, and poly(vinyl butyral) 11.46 g. To a 23 g portion of this mixt. was then added 2,2'-methylenebis(4-methyl-6-tert-butylphenol) 0.Several substances with their cas registry numbers 119-47-1 and 7500-53-0 may be metioned in this study.40, phthalazine 0.04, phthalic acid 0.06, tetrachlorophthalic anhydride 0.02 g, Lith 454 dye sensitizer soln. 2, and Hg(OAc)2 soln. (10 g Hg(OAc)2/100 ml MeOH) 10 drops. This soln. was then coated at 3.5 mil onto a paper support, dried 2.5 min at 190.degree.F, exposed (10,000-m-candle-s) to a 0-4 continuous wedge, and develeoped 8 s at 260.degree.F to give a Dmin of 0.13, a Dmax of 1.61, a .gamma. of 1.5, and a speed of 18. .