The trio of deadly colors include green, white, and orange. One of the most dangerous compounds in the green category is radium. Soon after its discovery in 1898, people fell in love with the brilliant shade of flaming green it emitted. It was then incorporated into jewelry, makeup, and other commercial packaging.
Compensating: If color is: Too Blue: Add small amount of Black or Brown. Add small amount of White to compensate darkening effect. Orange may also be added to neutralize Blue. Too Red: Add small amount of Green, Blue or Black.
Radium was discovered by Nobel laureate Marie Curie and her husband Pierre in 1898. The glowing luminous green of radium made it an attractive ingredient for several products, including toothpaste and food items. It helped watches glow in the dark.
Manufacturers choose phosphors that emit green to get the brightest apparent glow. The other reason green is a common color is because the most common affordable and non-toxic phosphor glows green. The green phosphor also glows the longest.
However, exposure to higher levels of radium over a long period of time may result in harmful effects including anemia, cataracts, fractured teeth, cancer (especially bone cancer), and death. Some of these effects may take years to develop and are mostly due to gamma radiation.
Purple cancels out yellow. Blue cancels out orange. Green cancels out red.
So why was this color so poisonous? In case you didn't pick up what the key ingredient was – Scheele's green was loaded with copper arsenite, one of the deadliest elements to have ever been discovered. Accidents caused by the use of green arsenic, 1859.
Attention: Emerald green is highly toxic and should not be used by people not trained to handle it. Emerald green can be prepared by a reaction of sodium arsenite and copper(II) acetate or alternately, by a reaction of sodium arsenite, copper II sulfate, and acetic acid.
There are certain "rules" you can use to obtain certain results. For example, red is added to kill green; green is added to kill red and white makes colors lighter, changes their hues or makes up other color tints. Black will darken and dull out some colors, while yellow will mellow or soften some colors.
Cheung said getting older also caused the lenses of our eyes to become yellow. “It's as if you'd put on yellow sunglasses. Everything that you see is filtered by a yellow layer,” said Cheung. “Then, grey may appear to be pink as the yellow reduces the green light intensity.”
Yellow is widely recognized as the happiest color in the world and comes with a scientific pedigree to back up this esteemed honor. Research has suggested two main reasons why yellow is considered the happiest color. Many studies have linked the psychological powers of yellow to the sun.
Black – Western World
Wearing dark colours for mourning has long been a tradition in many parts of the western world, in particular large parts of Europe and North America. The association of the colour black with death and loss is centuries old and is believed to have originated during Roman times.
In many cultures, black is thought to be unlucky and black cats, in particular, are said to bring bad luck to anyone that crosses their path. In China, white is generally seen as unlucky, while Brazil and Thailand consider purple to be a colour that can bring about misfortune to anyone who uses it outside of a funeral.
The given colors for evil tend to be red and black (predominantly Asura, but also madness and bad things in general), with the series' grim reapers adopting the classic black-and-white combination (even down to their hair color) in contrast to the protagonists' usually bright surroundings.
Aconitum napellus (Monkshood): A Purple Poison.
Botulinum toxin
Scientists differ about the relative toxicities of substances, but they seem to agree that botulinum toxin, produced by anaerobic bacteria, is the most toxic substance known. Its LD50 is tiny – at most 1 nanogram per kilogram can kill a human.
Potassium permanganate appears as a purple coloured water soluble xenobiotic sold as crystals or tablets or as a 0.01% dilute solution. Potassium Permanganate is strong oxidiser and poisoning may result in local and systemic toxicity.
Yellow: Cancels out purple. Go for it if you want to even out your skin tone.
Orange: Cancels BLUE | Orange correctors are used to counteract blue. It is best for under eyes and bruised skin as well.
To make pure black, mix blue, magenta, and yellow in equal parts. You can test this out on your sketch pad; put a dab of the three paints on your pad and mix colors with a paint brush or palette knife until achieving a rich black.
Glow sticks have chemiluminescence. That means they glow because of a chemical reaction. Other objects have radioluminescence. That means they contain an element like radium that gives off light.
“The invigorating effects of the radium give a pleasant sense of well being to the radio-activity absorbed by one's body, which is retained for several hours after the treatment,” the article said.
Radium dials usually lose their ability to glow in the dark in a period ranging anywhere from a few years to several decades, but all will cease to glow at some point.