Reference

Properties of spruce extracts containing salts of complex-forming metals

Properties of spruce extracts containing salts of complex-forming metals. Gorbachev, A. A. (Ukr. Nauchno-Issled. Inst. Kozh. Obuvn. Prom., USSR). Kozh.-Obuvn. Prom-st., 20(2), 43-6 (Russian) 1978. CODEN: KOOPAJ. ISSN: 0023-4354. DOCUMENT TYPE: Journal CA Section: 41 (Leather and Related Materials) The addn. of ￡1.35% (as Cr2O3 on wt. of solids in ext.) chrome alum (I) [10141-00-1] to a tanning soln. contg. spruce exts. decreased the formation of ppt. and thus facilitated tanning. The method of I introduction into the spruce exts. had no effect on the ppt. formation, but a temp. increase reduced the pptn. A statistical evaluation of I concn.-temp. relations showed that the concn. of tanning substances in the spruce exts. reached a max. value when ~0.5% I was added. The I-contg. spruce exts. could be used for pretreating leather before chrome tanning.

Inactivation of viruses by dyes and visible light

Inactivation of viruses by dyes and visible light. Kabuta, Hidefumi; Fujimaru, Takeshi; Kaneko, Masahiko; Yamamoto, Shigeru (Sch. Med., Kurume Univ., Kurume, Japan). Kurume Igakkai Zasshi, 39(11), 1067-77 (Japanese) 1976. CODEN: KIZAAL. DOCUMENT TYPE: Journal CA Section: 3 (Biochemical Interactions) No virus inactivation was caused by the temp. rise or light from a fluorescent lamp. Neutral Red [553-24-2], acrinol [1837-57-6], eosine [17372-87-1], methylene blue [61-73-4], gentian violet [548-62-9], Acridine Orange [65-61-2], proflavine [92-62-6], malachite green [569-64-2], Crystal Violet [548-62-9], safranine [477-73-6], hematoxylin [517-28-2], toluidine blue [37251-80-2], riboflavin [83-88-5], chrome alum [10141-00-1] and K2Cr2O7 were effective on enveloped viruses. Acridine Orange and toluidine blue were effective on vaccinia virus.