Reference

Ring-test program 1981-82

Ring-test program 1981-82. Assessment of biodegradability of chemicals in water by manometric respirometry. King, E. F.; Painter, H. A. 62-53-3 and 95-51-2 are also occured in this study. (Water Res. Cent., Stevenage/Herts. SG1 1TH, UK). Comm. Eur. Communities, [Rep.] EUR, EUR 8631, 31 pp. (English) 1983. CODEN: CECED9. DOCUMENT TYPE: Report CA Section: 61 (Water) Section cross-reference(s): 80 Results of the ring-test program indicated that the UK manometric respirometric method, similar to the Japanese MITI test, is suitable for reliably assessing biodegradebility of chems. in water. Of the 8 chem. studied, 5 chems., i.e., Na benzoate (I) [532-32-1], aniline (II) [62-53-3], Na stearate [822-16-2], pentaerythritol [115-77-5], and diethylene glycol [111-46-6] can be considered as potential candidates for use in the validation of any new or modified biodegradability method. Also, I and II are suitable as control substances for evaluating natural sludge inoculum activity. The natural sludge inoculum does not metabolize inherently biodegradable compds. It is important that the inoculum should not be taken from a source in which acclimatization to the test substance might have occurred. The problem of variable inocula cannot be completely solved, and appropriate activity checks with control compds. must be carried out. .

Additive for a granular detergent

Additive for a granular detergent. Sakatani, Takenobu; Suzuki, Shigeru (Lion Corp., Japan). Ger. Offen. DE 3324056 A1 19 Jan 1984, 14 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C11D003-20. APPLICATION: DE 83-3324056 4 Jul 1983. PRIORITY: JP 82-116590 5 Jul 1982. DOCUMENT TYPE: Patent CA Section: 46 (Surface Active Agents and Detergents) A fabric softener and a polyol are used to prep. 50-70-4 and 2152-56-9 are also in the experiment. a granular additive for laundry detergents. The polyol improves the dispersibility of the softener in cold water during laundering and gives improved softening while eliminating the deposition of visible particle of softener on fabrics. Thus, 75 parts R2N+Me2 Cl- (R = hydrogenated tallow alkyl) was melted at 100°, mixed with 25 parts C(CH2OH)4 [115-77-5], cooled, pulverized (to give particle size 250 m), and added (5%) to a powd. laundry detergent contg. 20% Na dodecylbenzenesulfonate. .