2045-00-3Relevant articles and documents
Interaction of phenylarsonic acid derivatives with Group IIA metal ions
Sharma,Sud,Pannu
, p. 169 - 170 (2007/10/03)
The proton-ligand stability constants and stability constants of complexes of Group IIA metal ions with o-amino- and o-hydroxyphenylarsonic acids have been determined potentiometrically at 30° at ionic strengths of 0.05, 0.10, 0.20 M and also at 20° and 40° at an ionic strength of 0.05 M. The stability order for 1:1 complexes is CaII II II. In case of MgII and BeII complexes, precipitation occurred early during titration. The thermodynamic parameters have been evaluated.
Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same
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, (2008/06/13)
An asymmetric dioxazine compound represented by the following formula (I) in the free acid form: STR1 wherein A1 and A2 independently of one another are each sulfo, halo, alkyl or alkoxy, W is an unsubstituted or substituted aliphatic or aromatic bridging group, X1 and X2 independently of one another are each hydrogen, halo, alkyl, alkoxy or phenoxy, R1 and R2 independently of one another are each hydrogen or unsubstituted or substituted alkyl, R3 and R4 independently of one another are each hydrogen, halo, alkyl, alkoxy or unsubstituted or substituted amino, Z is a fiber-reactive group, m and n independently of one another are each 0 or 1, provided that m≠n, and l is 1 or 2. This compound is suitable for dyeing and printing cellulose fiber, natural and synthetic polyamide fibers, polyrethane fiber, leather and the like and mixed yarns thereof, to obtain dyed or printed products of a color fast to light, wetness and chlorine with superior build-up and level dyeing properties.
Bisazo brown reactive dye
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, (2008/06/13)
A brown reactive dye represented by a free acid of the formula, STR1 wherein R is a hydrogen atom or a C1 to C4 alkyl group, X is --SO2 CH2 CH2 Cl, --SO2 CH=CH2, --SO2 CH2 CH2 OSO3 H or --SO2 CH2 CH2 OPO3 H2, rings A, B and C are each a benzene or naphthalene ring which may have other substituent, m is 0 to 3 and n is 0 to 1. This dye is suitable for dyeing cellulose fibers brown to afford dyeings superior in fastnesses, acid stability, build-up property and level dyeing property.
