Detail of "7307-55-3"

Reference

Flotation purification of wastewater containing colloidally dissolved metallic mercury and its oxide

Flotation purification of wastewater containing colloidally dissolved metallic mercury and its oxide. Skrylev, L. D.; Babinets, S. K.; Purich, A. N. (Odess. Gos. Univ., Odessa, USSR). Zh. Prikl. Khim. (Leningrad), 60(1), 134-7 (Russian) 1987. CODEN: ZPKHAB. ISSN: 0044-4618. 21908-53-2 and 124-22-1 are cas registry numbers of chemicals which are used as reagents here. DOCUMENT TYPE: Journal CA Section: 60 (Waste Treatment and Disposal) Colloidal Hg, Hg2O, and yellow HgO are removed from amalgamation wastewaters by air flotation using collectors contg. undecylamine [7307-55-3], dodecylamine [124-22-1] or an aq. suspension of amine manuf. residues in paraffin. The treatment times vary from 3 to 12 min, depending on the collector used. The residual concns. of Hg and the collectors are ￡0.2 and ￡0.5 mg/L, resp. The pH of treated wastewaters varies from 7 to 9. .

QSARs for selected aliphatic and aromatic amines

QSARs for selected aliphatic and aromatic amines. Schultz, T. Wayne; Wilke, Teresa S.; Bryant, Susan E.; Hosein, Leah M. (Coll. Vet. Med., Univ. Tennessee, Knoxville, TN 37901-1071, USA). Sci. Total Environ., 109-110, 581-7 (English) 1991. CODEN: STENDL. ISSN: 0048-9697. DOCUMENT TYPE: Journal CA Section: 4 (Toxicology) The relative toxicity of 24 selected amines was evaluated in the 48 h Tetrahymena pyriformis static population growth impairment assay and compared with literature data for the 96 h Pimephales promelas flow-through mortality assay. Chems. selected included normal and branched aliph. primary amines, 4-position alkyl-substituted primary arom. amines, as well as secondary and tertiary amines. Three amines were not toxic at satn. in the Tetrahymena system, whereas one amine was not toxic at satn. in the Pimephales system. Due to the aberrantly high toxicity of aniline obsd. in the Tetrahymena system, this chem. was not included in the analyses. 589-16-2 and 7307-55-3 are also in the experiment. For QSAR development, toxicity measured as log IGC50-1 and log LC50-1, resp., was regressed against the log of the 1-octanol/water partition coeff. (log Kow). Both toxicity and hydrophobicity varied over five orders of magnitude. The model, log IGC50-1 = 0.72(log Kow) - 1.64, was a good predictor of toxicity in the Tetrahymena system. Similarly, the model, log LC50-1 = 0.80(log Kow) - 1.80, was a good predictor of toxicity in the Pimephales system. Therefore, as seen by the model, log LC50-1 = 1.11(log IGC50-1) - 0.01, a regression of the log toxicities gave a slope of one, an intercept of zero and a high correlation. .