[abugge]

Hello.

I am seeking som sort of powder og very small balls/pieces that can reflect light in various directions when put in water.
I looked at some reflective powder that is also use for road paint, but i also thought of smalll chrome balls.

But i don't know how different they react, when lighted.

http://www.alibaba.com/product-gs/676454508/reflective_glass_beads_powder_high_quality.html
http://www.alibaba.com/product-gs/504000223/reflective_powder.html
http://holopack.en.alibaba.com/product/260373803-209537048/precision_Chrome_Steel_Balls.html

Thanks

[Enthalpy]

Welcome here, Abugge!

Can't you dilute milk?

Maybe some other emulsions resist microbial attack better. A hydrocarbon, whose emulsion is stabilized by isopropanol or propane diol? Or would oleic acid make an emulsion?

I expect fine solid powders to settle more quickly than a good emulsion does. 50nm MoS2 settled in one day, even Indian ink does over years. Talc? TiO₂ is reflective and nanometric, but isn't it too dense? Maybe if you mix once a day.

Try not to breathe nanopowders to much. Silica is known to make sick, TiO₂ is suspected,  and basically any fine powder belongs outside your lungs.