Reference

Ground-marking coatings

Ground-marking coatings.Some chemicals with cas registry numbers like 1305-62-0 and 471-34-1 are also used. Bruyeres, Jean Pierre; Gourdenne, Albert (Fr. ). Fr. Demande FR 2529594 A1 6 Jan 1984,9 pp. (French). (France). CODEN: FRXXBL. CLASS: IC: E01C023-16. ICA: C01F011-18; C01F011-46; C07D251-00; C07D251-54. APPLICATION: FR 82-11623 30 Jun 1982. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Long-lasting marking paints, e.g. for tennis courts or playing fields, are prepd. by mixing white, inorg. powders with melamine [108-78-1] binders. Thus, a mixt. of gypsum 60, CaCO3 25, melamine 6, kaolinite 6, and Ca(OH)2 3% was used to mark a soccer field with lines 5 cm wide and 8 mm high, which were still visible after 1 mo use. .

Preparation and laboratory evaluation of combination nitrogen fertilizers containing urea and slowly available nitrogen (SAN) compounds for rice

Preparation and laboratory evaluation of combination nitrogen fertilizers containing urea and slowly available nitrogen (SAN) compounds for rice. Chang, Tse Chou; Savant, N.Several substances are used for example 471-46-5 and 461-58-5 which are their cas registry numbers. K. (Dep. Agric. Chem., Natl. Taiwan Univ., Taipei, Taiwan). Kuo Li T'ai-wan Ta Hsueh Nung Hsueh Yuan Yen Chiu Pao Kao, 22(2), 92-106 (English) 1982. CODEN: KTNYA8. ISSN: 0077-5819. DOCUMENT TYPE: Journal CA Section: 19 (Fertilizers, Soils, and Plant Nutrition) Incubation studies were made to det. the feasibility of prepg. and using a combination fertilizer contg. urea and slowly available N compds. in a basal application for wetland rice with a view to prolong the fertilizer N supply and increase its efficiency of utilization. Dicyandiamide (DCD) [461-58-5] and guanylurea sulfate (GUS) [591-01-5] were easily hydrolyzable and had no slowly available N fertilizer characteristics in submerged soil. The fertilizer N in the soil column was subjected to 4 simultaneous reactions: hydrolysis, immobilization, mineralization, and N loss through NH3 volatilization and denitrification. These reactions were apparently observable from the overall reaction kinetics expressed as the percentage of extractable ammonium-N. As the diffusion rate and immobilization rate increase with the increase of N concn., urea, DCD, GUS, which were quickly hydrolyzed, were prone to N loss through immobilization and volatilization processes. Oxamide [471-46-5] and melamine [108-78-1] hydrolyzed slowly; the immobilization and volatilization processes were also depressed. Owing to the very slowly releasing characteristics of oxamide and melamine, the combination fertilizers with higher urea/oxamide or urea/melamine ratios will fit the N requirement of rice plant better than those with DCD and GUS will. Draining water after 5 wk of incubation enhanced the N loss through NH3 voltilization and denitrification. .