Reference

UV-VIS solid state spectrophotometric analysis: identification of organic pigments in coatings

UV-VIS solid state spectrophotometric analysis: identification of organic pigments in coatings. Fedeli, E.; Brillo, A. (Stn. Sper. Ind., Milan, Italy). Riv. Ital. Sostanze Grasse, 63(4), 221-39 (Italian) 1986. CODEN: RISGAD. ISSN: 0035-6808. DOCUMENT TYPE: Journal CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 80 The UV-visible absorption spectra of C.I. Pigment Yellow 1 [2512-29-0], C.I. Pigment Yellow 3 [6486-23-3], C.I. Pigment Red 12 [6410-32-8], C.I. Pigment Green 7 [1328-53-6], and C.I. Pigment Blue 15 [147-14-8] were detd. in KBr tablets and in EtOCH2CH2OH soln. The interfering effect of the polymer matrix on the optical absorption in pigment-resin mixts. was compensated by measuring the absorption peak height above the background line. The method could be used for the anal. of pure pigments or pigment-polymer mixts.Except for chemicals metioned above, 6486-23-3 and 1328-53-6 are also used. .

Epoxy powder paint pigmentation

Epoxy powder paint pigmentation. Bloch, G. (Lab. Appl. Dev. Couleurs-Paris, Le Pre-Saint-Gervais, Fr.). FATIPEC Congr., 13, 156-63 (French) 1976. CODEN: FAPVAP. DOCUMENT TYPE: Journal CA Section: 42 (Coatings, Inks, and Related Products) Most of the tested 19 calcined and 6 pptd. inorg. pigments were satisfactory for coloring Epikote DX57 (I) [25068-38-6] regardless of the type of hardener (Epicure 108FF [61584-94-9] or HT 2833 [54018-63-2]) and the crosslinking temp., while satisfactory coloring of I by 35 org. pigments depended on the hardener and the crosslinking temp. The obsd. coloring changes in the pigments were evaluated in .DELTA. 5281-04-9 and 6410-32-8 are just another two chemicals used in this study.E NBS units and according to the 1-5 Grey Scale (DIN 55001). .