Andy Towns

3 Questions 38 Answers 0 Followers

Questions related from Andy Towns

Why is ashing of certain organophosphorus compounds problematic?

When subjected to conventional ashing (i.e. residue on ignition through use of a furnace and noble metal crucible), compounds ArC(=O)P(=O)Ar2 [Ar = aryl] give ash values of a few percent %w/w...

13 August 2020 962 3 View

Does anyone know of established commercial applications for organic or inorganic upconverters?

I’m aware of their commercialisation for security/anti-counterfeiting but are there any other established industrial uses of upconverter/anti-Stokes materials? There has been much work on...

10 May 2018 3,321 0 View

Does anyone know of commercial organic materials that phosphoresce at ~20C as an alternative to conventional inorganic or metal complex pigments?

Conventional phosphorescent colorants are pigments because luminescent dyes must be cooled to temperatures far below ambient to obtain appreciable phosphorescence. I'm aware of considerable...

16 April 2018 8,571 7 View