id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
eurjchem-1126	Deeb, Ali AbdelHamid; El-Hossami, Mamdoh Bahgat; AbdelGawad, Ahmed Awad	Pyridazine derivatives and its related compounds. Part 31. Synthesis of some disperse dyes derived from 3-amino-1H-pyrzolo[3,4-c]pyridazine and their color assessment on polyester fabrics	2014	5	.pdf	application/pdf	3527	208	68	M.p.: 242‐243 °C. FT‐IR (KBr, ν, cm‐1): 3421, 3188 (NH), 3082 (CHarom.), 2931 (CHaliph.), 1719 (C=O), 1611 (C=N), 1554 (C=C), 1517, 1338 (NO2). A specimen of dyed polyester fabric was stitched between two pieces of undyed cotton and wool fabrics, all of equal length, and then washed at 95 °C for 30 min. The staining on two pieces of undyed cotton and wool fabrics, all of equal length, and then washed at 95 °C for 30 min. The staining on the undyed adjacent fabrics was assessed according to the International Geometric gray scale: 1‐poor, 2‐fair, 3‐moderate, 4‐good, 5‐ excellent. 642 Deeb et al. / European Journal of Chemistry 5 (4) (2014) 639‐643 Table 1. Optical measurements of the synthesized monoazo disperse dyes 5a‐e and 6a‐i on the polyester fabrics†. Dyes a* b* C* h* L* ∆E* ∆L* ∆C* ∆H* K/S 5a 10.36 71.88 72.62 81.80 71.03 00.000 00.000 00.000 00.000 19.0 5b 19.20 82.38 84.59 76.88 66.16 14.570 ‐4.869 11.972 ‐6.727 24.5 5c 15.52 85.85 87.24 79.75 70.22 14.914 ‐0.806 14.618 ‐2.842 21.0 5d 17.03 83.62 85.08 81.35 84.91 15.380 ‐13.885 12.252 ‐4.422 21.5 5e 31.32 68.33 75.13 65.44 59.30 24.200 ‐11.730 2.508 ‐21.018 23.0 6a 20.87 78.52 81.25 75.12 20.87 00.000 00.000 00.000 00.000 16.0 6b 19.03 55.02 50.64 70.09 19.03 18.241 5.898 ‐16.608 ‐8.889 24.0 6c 11.55 58.16 61.25 39.89 37.55 60.783 32.801 ‐29.995 ‐40.784 19.5 6d 35.14 57.51 67.04 58.57 35.14 29.597 ‐15.191 ‐13.849 ‐21.294 21.9 6e 34.78 29.45 54.43 42.75 44.78 61.785 ‐30.323 ‐26.821 ‐37.278 22.0 6f 19.10 45.16 49.04 67.08 19.10 33.674 4.888 ‐32.214 ‐8.852 25.0 6g 12.90 62.11 63.44 78.27 12.90 8.418 2.539 16.810 6.948 23.5 6h 40.07 33.22 52.05 39.66 40.07 59.098 ‐32.735 ‐29.195 ‐39.607 21.0 6i 15.48 86.27 87.65 79.83 15.48 9.888 2.948 6.404 6.933 24.0 † a*, red/green axis; b*, yellow/blue axis; C*, color brightness; h*, hue value; L*, lightness of the color; ΔE*, total color difference; ΔL*, lightness difference; ΔC*, color difference; ΔH*, hue difference; K/S = Amount of dye absorbed on the surface of the fabrics.	cache/eurjchem-1126.pdf	txt/eurjchem-1126.txt