发明授权
US4039284A Cyanuric acid compound colorimetric indicator and method for use 失效
氰尿酸化合物比色指示剂及使用方法

Cyanuric acid compound colorimetric indicator and method for use
摘要:
A formulation for colorimetric determination of the concentration of cyanuric acid compounds, particularly in swimming pool water, comprises an aqueous solution of a stabilizer, monoethanolamine and a thymolsulfonphthalein compound which, in aqueous solution with monoethanolamine, will exhibit different characteristic color shades dependent upon the concentration of cyanuric acid compounds. The stabilizer is a water-soluble, ultraviolet light absorbing material which is a condensation product of a disulfonic acid derivative with stilbene, stilbyle or their derivatives.A method of testing for cyanuric acid compound concentrations is to mix the formulation with a sample of swimming pool water and compare the resultant characteristic color shade with a standard color shade.
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