EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Spectrophotometric investigation of barium and calcium reactions with 2 7 bis 4 carboxybenzeneazo 1 8 dioxy naphthalene 3 6 disulfonic acid/


Glasnik Khemijskog Drushtva Beograd 48(8): 525-530
Spectrophotometric investigation of barium and calcium reactions with 2 7 bis 4 carboxybenzeneazo 1 8 dioxy naphthalene 3 6 disulfonic acid/
Reaction of Ba and Ca with the reagent 2,7-bis-(4-carboxybenzene-azo)-1,8-dioxynaphthalene-3,6-disulfonic acid was spectrophometrically investigated. In acidic media pH 0.5-5 Ba and Ca form with the reagent a complex of the so called Type III .**GRAPHIC**. Ba = 705 nm, .**GRAPHIC**. = 698 nm). By the Job method the composition of Ba and Ca complexes was determined (Me:R = 1:2). Under the same conditions Na+ formed a complex with the reagent only at the molar ratio Me:R = 100:1. This reagent can be used for spectrophotometric determination of Ba and Ca.


Accession: 006460668



Related references

Spectrophotometric determination of aromatic amines by the diazotization coupling technique with 8 amino 1 hydroxy naphthalene 3 6 disulfonic acid and n 1 naphthyl ethylenediamine as the coupling agents. Analytical Chemistry 54(4): 807-809, 1982

Analysis of the fluorine ion in the presence of aluminum and calcium ions in air and water with the use of zirconium 4 sulfophenylazo 1 8 dihydroxy naphthalene 3 6 disulfonic acid reagent. Gigiena i Sanitariya (1): 64-65, 1977

Degradation of naphthalene-2,6- and naphthalene-1,6-disulfonic acid by a Moraxella sp. Applied and Environmental Microbiology 54(7): 1842-1847, 1988

Use of polymerized dioxy-dimethyl-diphenymethane-disulfonic acid in the therapy of cervicovaginitis; clinical study of 223 cases. Annali di Ostetricia E Ginecologia 74(3): 264-279, 1952

Interaction of 1,1'-bi(4-anilino)naphthalene-5,5'-disulfonic acid with a-crystallin. The Journal of Biological Chemistry 273(15): 65-70, 1998

Diazo naphthalene-disulfonic acid and fungal membrane permeability. 1974

Spectrofluorimetric determination of nitrite with 5,6-diamino-1,3-naphthalene disulfonic acid. Analytica Chimica Acta 419(2): 169-173, 2000

Interaction of 1,1'-bi(4-anilino)naphthalene-5,5'-disulfonic acid with alpha-crystallin. Journal of Biological Chemistry 273(15): 8965-8970, 1998

Decomposition of aqueous naphthalene-1,5-disulfonic acid by means of oxidation processes. Ozone Science and Engineering 28(6): 437-443, 2006

Identification of 1,2'-bi(4-anilino)naphthalene-5,5'-disulfonic acid binding sequences in a-crystallin. The Journal of Biological Chemistry 273(25): 474-8, 1998