rhodizonic acid

A study of the two-dimensional crystallization of rhodizonic acid on the crystalline surfaces of gold and copper is presented… (More)

Two simple and sensitive visible spectrophotometric methods have been developed for the quantitative estimation of ketotifen… (More)

Rhodizonic acid, a six-membered cyclic hydroxyquinone, produced reactive oxygen species as a complex with transition metals… (More)

The solid-state structures of a series of alkali metal salts of the croconate dianion (C(5)O(5)(2-)) and of croconic acid (H(2)C… (More)

Reduction of 1,4-dimethylenecyclohexane-2,3,5,6-tetrone forms the title dianion 1(2-), which may also be formulated as the 1,4… (More)

In this work we investigated the toxicity of a polyphenolic p-benzoquinone derivative, the tetrahydroxy-1,4-quinone (THQ) toward… (More)

A rapid abrasion test (RAT) was developed for screening ceramicware for Pb. A Pb-sensitive chromogen (rhodizonic acid) reacts to… (More)

A modification of the U.S. Food and Drug Administration (FDA) lead screening test of ceramic ware was made to screen large… (More)

The rhodizonic acid method for the determination of SO2-4 has been used to investigate the glycosulphatase activity of the… (More)

Exposure of frozen sections of guinea pig skin to a saturated aqueous solution of sodium rhodizonate buffered to pH 6.2… (More)