Reference

Removal of chromium ions from the residual dye liquor in wool dyeing

Removal of chromium ions from the residual dye liquor in wool dyeing. Langmann, Werner; Klapper, Hans (Bayer A.-G., Ger.Chemicals with cas numbers 110-16-7 and 526-99-8 also play role.). Ger. Offen. DE 2512768 30 Sep 1976, 10 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: D06P005-00. APPLICATION: DE 75-2512768 22 Mar 1975. DOCUMENT TYPE: Patent CA Section: 60 (Sewage and Wastes) Section cross-reference(s): 39 Compds. such as ascorbic acid (I) [50-81-7], 5-sulfosalicylic acid [97-05-2], or 2-hydroxy-6-methylbenzoic acid [567-61-3] are used in removal of Cr6+ from wool dyeing effluents. Thus, effluents from dyeing wool with Mordant Violet 5 were treated with K2Cr2O7, adjusted to pH 3.5, mixed with I, and boiled with HCO2H. No Cr 6+ was detected in effluent, as compared to 46 mg Cr6+/l. when I was not used. .

Alternatives to aspirin, derived from biological sources

Alternatives to aspirin, derived from biological sources. Whitehouse, M. W.; Rainsford, K. D.; Ardlie, N. G.; Young, I. G.; Brune, K. (John Curtin Sch. Med. Res., Aust. Natl. Univ., Canberra, Aust.). Agents Actions Suppl., 1(Aspirin Relat. Drugs: Their Actions Uses), 43-57 (English) 1977. CODEN: AASUDJ. DOCUMENT TYPE: Journal CA Section: 1 (Pharmacodynamics) 6-Methylsalicylic acid [567-61-3], 6-methylaspirin [31490-86-5], salicylaldehyde [90-02-8] and its acetyl derivs. are all less potent analgesics and antiinflammatory agents in rodents than salicylic acid [69-72-7] and aspirin [50-78-2]. Me salicylate (I) [119-36-8], 2,3-dihydroxybenzoic acid [303-38-8], aspirin Me ester [580-02-9], and 2,3-diacetoxybenzoic acid (DAB) [486-79-3] exhibited antiinflammatory and antiarthritic activities comparable to salicylic acid andaspirin. Aspirin Me ester and DAB inhibited human platelet aggregation in vitro and erytherma development in vivo. 6-Methylsalicyclic acid, I, aspirin Me ester, and DAB were not gastric ulcerogens. Dihydroxybenzoic acid lowered the prostaglandin concns. in inflammed tissue to the same extent as aspirin.