The first blue pigment discovered in 200 years is now commercially available

Post by La1n » Sun, Jan 17, 2021, 11:12 PM UTC

adrian_b wrote: post #123

annoyingnoob wrote: post #117

Earlier quoted context omitted.

I would say, do not underestimate the value of art. The article described an artist that made is own paint from the pigment. He painted a depiction of an ancient bird, its absolutely beautiful. This use was not a waste of resources and will in fact last much much longer than any screen made in 2021. Its arguable that using precious resources for products that last less than 20 years, in many cases less than 5 years,…

I agree that using such a pigment for a small number of art objects would certainly be justified, like also the use of gold in art objects or jewelry, instead of its more valuable technical uses, for which there are no alternatives, e.g. in protecting electrical contacts from corrosion or in semiconductor metallization. However, if instead of using this pigment in a few valuable paintings, it would be used in a high…

Post by esyir » Mon, Jan 18, 2021, 2:35 AM UTC

nkurz wrote: post #142

p_l wrote: post #130

Earlier quoted context omitted.

The amount of mercury intake with vaccine that was preserved using thiomersal is smaller than amount mercury taken into organism when you drink a cup of tap water in many countries, including tap water declared safe to drink. That's why it wasn't justified.

While you may be right that the total amount of mercury is not an issue relative to other sources, allergies to thiomersal are a real thing. Here's a page on it: https://dermnetnz.org/topics/thiomersal-allergy/ Personally, I eventually discovered that my terrible problems with wearing contact lenses in the 1990's were caused by the thiomersal used as a preservative in the saline solution I was using. Given my known a…

Post by okl » Mon, Jan 18, 2021, 9:13 AM UTC

namibj wrote: post #133

okl wrote: post #93

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AFAIK only in specialised low-temp solder, like the one sold by Chip-Quik to desolder sensitive components.

That's Tin-Bismuth eutectic, forming a 99 C (a hair below boiling water) eutectic when mixed with lead.

Post by zkomp » Mon, Jan 18, 2021, 9:51 AM UTC

esyir wrote: post #143

nkurz wrote: post #142

Earlier quoted context omitted.

While you may be right that the total amount of mercury is not an issue relative to other sources, allergies to thiomersal are a real thing. Here's a page on it: https://dermnetnz.org/topics/thiomersal-allergy/ Personally, I eventually discovered that my terrible problems with wearing contact lenses in the 1990's were caused by the thiomersal used as a preservative in the saline solution I was using. Given my known a…

Guess we should ban peanuts too, since allergies to that exist too. Some population being allergic isn't an argument to remove it, rather one for transparency and alternatives.

Post by namibj » Mon, Jan 18, 2021, 11:37 AM UTC

2muchcoffeeman wrote: post #137

namibj wrote: post #132

Earlier quoted context omitted.

Because corrosive is way different than toxic. Particularly, acid/base corrosion can and will be neutralized by our body once sufficiently diluted. Toxic compounds, especially heavy metals, stay toxic even if diluted.

Again, so what? The point being made is that you can take dangerous elements and then create a compound that doesn’t share the properties of the elements. So a counter argument is to show that’s not true for the elements that make up the compound for this blue dye.