purpurin मीनिंग इन हिंदी

उदाहरण वाक्य

1. Purlytin is a purpurin; a degradation product of chlorophyll.
2. Karamu is rich in dying properties including alizarin and purpurin.
3. Purpurin is normally not coloured, but is red when dissolved in alkaline solutions.
4. Purpurin fluoresces yellow to red under ultraviolet light, while synthetic alizarin slightly shows violet.
5. Alizarin was discovered before purpurin, by heating the ground madder with acid and potash.
6. They then found that madder lake contained two colorants, the red alizarin and the more rapidly fading purpurin.
7. Analysis of the fibers and dyes revealed the use of alizarin, purpurin, rubiadin, quinizarin, indigo and indirubin.
8. Purpurin is only present in the natural form of madder and gives a distinctive orange / red generally warmer tone that pure synthetic alizarin does not.
9. Purpurin artifacts are frequently found during archeological excavations of more affluent Roman settlements, often along with actual Roman glass; Pompeii is a prime example.
10. By drying, fermenting or a treatment with acids, this is changed to sugar, alizarin and purpurin, which were first isolated by the French chemist Pierre Jean Robiquet in 1826.