Oral care compositions with color changing indicator
申请人:Sabnis W. Ram
公开号:US20060222601A1
公开(公告)日:2006-10-05
The invention describes color changing toothpastes and mouthwashes which contains acid-base indicator(s) for interaction with the oral cavity to provide a color change indicative of treatment time.
这项发明描述了含有酸碱指示剂的变色牙膏和漱口水,用于与口腔相互作用,以提供治疗时间的颜色变化指示。
A facile synthesis of phthalein indicator dyes
作者:Ram W. Sabnis
DOI:10.1016/j.tetlet.2009.09.007
日期:2009.11
The use of methanesulfonic acid offers a novel and highly efficient method for the synthesis of phthalein indicator dyes in excellent yields on an industrial scale.
甲磺酸的使用提供了一种新颖且高效的方法,可在工业规模上以优异的产率合成酞菁指示剂染料。
NbCl
<sub>5</sub>
Promoted the Efficient Synthesis of Phthalein Derivatives: Optical Characterization and Solvatochromic Effect
作者:Vitor Fernandes Moreno、Giovanny Carvalho Santos、Gyordanna Mayara Gaspar Costa、Marcelo Henrique Ayala Gomes、Luiz Carlos da Silva‐Filho
DOI:10.1002/jhet.3664
日期:2019.10
studied. These compounds showed a color‐changingeffect depending on the pH and solvent, making them useful for applications as indicators. The phthaleins change their conformations depending on the condition of the medium. Photophysical studies of these compounds were carried out through their UV–Vis absorption spectra. Here, we show the umbrella‐like conformationchange of phthalein derivatives that
Personal care compositions with color changing indicator
申请人:Sabnis W. Ram
公开号:US20060222675A1
公开(公告)日:2006-10-05
The invention describes a composition for use in disinfecting a surface for personal use, such as a public restroom facility or telephone. The composition and delivery of the composition provides for the placement of a thin layer of disinfectant which includes a acid-base indicator. The acid-base indicator disappears as the thin layer effects the germicidal activity of the disinfectant. The composition is also rapidly drying, so that the acid-base indicator disappears as well as the disinfecting composition leaving the surface dry. The invention also relates to use of the compositions in a lotion, such as a sunscreen. Use of the acid-base indicator provides a method to visualize where the lotion is applied by color, with the color then later dissipating.