When sodium hypochlorite (bleach) solution is added to luminol, a chemical reaction occurs that releases energy in the form of light. This is called chemiluminescence. The bleach solution acts as an oxidizing agent, which means it takes electrons away from the luminol molecule. This causes the luminol molecule to become excited, and it releases the energy as light.
🎥 Courtesy: Kendra Frederick
The luminol molecule is made up of two amino groups, a carbonyl group, and an azo group. The amino groups are electron-rich, while the carbonyl group is electron-poor. The azo group is a conjugated system, which means that the electrons in the double bonds can move freely from one atom to another.
When sodium hypochlorite (bleach) solution is added to luminol, the bleach molecules react with the amino groups of the luminol molecule. This reaction takes electrons away from the luminol molecule, which causes the luminol molecule to become oxidized. The oxidized luminol molecule is in an excited state, which means that it has more energy than it normally does.
The excited luminol molecule then releases the extra energy as light. This light is called chemiluminescence. The light emitted by the chemiluminescence reaction is blue because the luminol molecule has a blue fluorescence.
The chemiluminescence reaction between luminol and sodium hypochlorite is catalyzed by the presence of a metal ion, such as iron or copper. The metal ion helps to stabilize the excited state of the luminol molecule, which makes it more likely to release the extra energy as light.
The chemiluminescence reaction is very sensitive to impurities, so it is important to use pure chemicals. The reaction can also be affected by the pH of the solution. The optimal pH for the reaction is around 9.
The chemiluminescence reaction between luminol and sodium hypochlorite can be used to detect blood, as the iron in hemoglobin can catalyze the reaction. The reaction is also used in some commercial products, such as glow sticks and emergency lights.
Luminol is a powder which is made up of oxygen, hydrogen,nitrogen, and carbon. It glows luminous blue when it comes into contact with blood, even minuscule amounts of blood and even after the area has been cleaned. The glow of luminol only lasts for around 30 seconds but it can be captured through a camera. It’s often used as a last resort because the reaction can destroy the evidence.
My tongue speaks the language of your fingertips. Central pocket loop whorl. The soft skin of my hips is a crime scene. Hollow my bones. Carve in hearts. Suck the juice out, let it oil the pads of your fingers. Luminol the bathroom.
-excerpt from ‘Chili Oil, Buttercream: On Crime Scenes and Wanting’ by E. (full poem can be found on my Instagram: soundofthecedar )
Luminol is a powder which is made up of oxygen, hydrogen, nitrogen, and carbon. It glows luminous blue when it comes into contact with blood, even minuscule amounts of blood and even after the area has been cleaned. The glow of luminol only lasts for around 30 seconds but it can be captured through a camera. It’s often used as a last resort because the reaction can destroy the evidence.
Na aula de Eletivas, aprendemos sobre luminol e cromatografia.
O luminol é um reagente quimioluminescente que reage com o sangue, emitindo uma luz, sendo muito usado em perícias criminais.
A cromatografia é um processo de separação e identificação de componentes de uma mistura.
Essa técnica é baseada na migração dos compostos da mistura, os quais apresentam diferentes interações através de duas fases.
Fase móvel: fase em que os componentes a serem isolados "correm" por um solvente fluido, que pode ser líquido ou gasoso.
Fase estacionária: fase fixa em que o componente que está sendo separado ou identificado irá se fixar na superfície de outro material líquido ou sólido.
im posting this here because i know this is exactly the type of shitpost youd see on this site. miles edgeworth as the cover of that one wilbur soot song my old girlfriend or something
for context, this is what i imagine was going through miles edgeworth's fruity ass head during the seven year gap and no i dont take constructive criticism. im right.
This is my son Luminol Hydroxyacelunodosetrase Science, Esq. and here is his very real and official forensics band because he’s a forensics expert and everything
I spotted a perfect little paw print made by my cat stepping in cooking oil and walking around the counter, so I carefully aimed my phone so the paw print would reflect back a small light in the kitchen so the camera would capture it... It looks like a crime scene picture